Page 1
I²C BUS-CONTROLLED MULTISTANDARD
■ I²C Bus Control
■ PIF Circuit with PLL Demodulation
(Positive and Negative Video)
■ SIF Circuit with QSS Structure, FM
Demodulation and AM Demodulation for France
■ Intercarrier Capability
■ Built-in Sound Bandpass
■ Sound Subcarrier Output for Stereo Chassis
(FM, NICAM)
■ Audio FM wide mode
■ Audio Switch and Volume Control (Mono
Chassis)
■ AVL (Automatic Volume Levelling)
■ Integr a ted C hro ma Filt ers and Lu ma Del a y Li ne
■ Integrated Chroma Delay Line
■ Video Switch (3 CVBS In, 2 CVBS Out)
■ SVHS Switch (Y Combined with CVBS3 Inpu t)
■ OSD RGB Inputs
■ External RGB/YCrCb Inputs or YUV Interface
■ PAL / SECAM / NTSC Chroma Demodulators
■ Auto Flesh Contr ol Capa bility in NTSC mode
■ South America Capability (PAL-M / PAL-N /
NTSC)
■ Chroma Subcarrier Output
■ Black Stretch Circuit
■ Peaking Circuit
■ Automatic Cut-off Current Loop
■ Manual Cut-off possible f or low-cost
applications
■ Two Horizontal D eflection PLLs
■ Vertical Countdown
■ Half Contrast
■ APR (A utom atic R GB Pea k Re gula tio n) or RGB
Peak Limitation Function
■ White Insertion
■ Copy Protection mode
■ Wide Line Blanking mode
■ SAW Filter Switch Contro l (TQFP64 package
only)
■ Very Few External Components
STV224XH/228XH/223XH
SINGLE CHIP TV PROCESSOR
SHRINK56
(Plastic Package)
ORDER CODE: STV224XH/8XH
TQFP64 (14 x 14 x 1.4 mm)
(Full Thin Plastic Quad Flat Pack)
ORDER CODE: STV223XH
April 2004 1/86
1
Page 2
STV224XH/228XH/223XH
1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 MAIN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 DETAILED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.1 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.2 Picture Intermediate Frequency (PIF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3 Sound Intermediate Frequency (SIF) and Sound Demodulators . . . . . . . . . . . . . . . 20
3.1.4 Audio Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.5 Surface Acoustic Wave (SAW) Filter Switch Control . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.6 Video Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2 DEFLECTION PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.2 Two Phase-Locked Loops (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.3 Video Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.4 Vertical Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.5 Vertical Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.6 Vertical Oversize Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.8 Vertical Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.9 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.10Horizontal Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.11Combined Line Flyback / Super-Sandcastle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.12Line Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.13Copy Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.1 Integrated Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.2 Integrated Chroma Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.3 Integrated Bell Filter for SECAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.4 Integrated Luma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.5 Filter Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 VIDEO CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.1 RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.2 YCrCb Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.3 Half-Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.4 YUV to RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.5 Automatic Cut-off Current Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.6 Warm-up Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.7 Beam Current Limiter DC Voltage Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.8 Drive (RGB gain) and DC Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.9 Bus-controlled Contrast & Saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.10Bus-controlled Brightness & Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.11Bus-controlled Coring on Sharpness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.12Black Stretch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.13Bus-controlled Blue Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.14White Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.15Automatic RGB Peak Regulation (APR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2/86
1
Page 3
STV224XH/228XH/223XH
3.4.16RGB Peak Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5 CHROMA CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5.1 PAL/SECAM/NTSC Decoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5.2 PAL/NTSC Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5.3 SECAM Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.5.4 Chroma Standard Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.1 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2 THERMAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3 SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4 IF SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 7
4.4.1 PIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.2 PIFAGC Negative Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.3 PIFAGC Positive Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.4 Tuner AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.5 Synchronous Video Demodulat or . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4.6 Demodulated Video Output (INTCVBSOUT Pin) . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4.7 SIF Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.8 SIF AGC (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.9 SIF AGC (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.10FM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.11De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.12AM Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.13SIF Output (AM/FM or Sound Subcarriers Output) . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.14SAW Filter Switch Output (TQFP64 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.15External Audio Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.16Main Audio Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.4.17AVL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.5.1 Luminance & CVBS Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.5.2 Combined Chrominance & SVHS Selection Input . . . . . . . . . . . . . . . . . . . . . . . 31
4.5.3 CVBS1 Output (Pin 29 - SDIP56) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.5.4 CVBS2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5.5 OSD RGB Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5.6 FBOSD/HC Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5.7 External RGB/YCrCb Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.5.8 External Fast Blanking Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6 LUMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6.1 Y Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6.2 Peaking Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6.3 Black Stretch Control (Pin BS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.6.4 Y Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.7 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.7.1 Y Trap Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.7.2 Chrominance Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.7.3 Bell Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8 CHROMA PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3/86
Page 4
STV224XH/228XH/223XH
4.8.1 ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8.2 ACC Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8.3 Killer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5
4.8.4 Chroma PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8.5 PLL Loop Filter (PAL/NTSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8.6 Hue Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8.7 Automatic Flesh Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8.8 Color Demodulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.8.9 Chroma Delay Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.8.10Chroma Reference Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.9 SCANNING PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.9.1 Synchronization Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.9.2 Horizontal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.9.3 First Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.9.4 Second Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.9.5 Line Flyback Input/Super-Sandcastle Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.9.6 Horizontal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.9.7 Vertical Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.9.8 Vertical Amplitude Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.9.9 Crystal Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10 RGB CONTROL PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.1Y Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.2U & V Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.3Contrast Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.4Saturation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.5Brightness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.6RGB Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.7Drive Adjustment (White Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.8Cut-Off Adjustment (Black Point Adjustment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.9Cathode Current Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.10Beam Current Limiter Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.11Automatic RGB Peak Regulation (APR) / RGB Peak Limitation . . . . . . . . . . . . . . 40
4.10.12RGB Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.11 I²C BUS CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.11.1SCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.11.2SDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.11.3I²C Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5 I²C BUS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6 I²C BUS SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5
6.1 SUMMARY INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.2 SUMMARY OUTPUT SIGNALS (READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.3 INPUT SIGNALS (WRITE MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.1 PIFVCO Free Running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.2 PIF Free Running Coarse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.3 PIF Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.3.4 Tuner Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3.5 SIF Features and Audio Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3.6 Video Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4/86
Page 5
STV224XH/228XH/223XH
6.3.7 Chroma Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.3.8 Scanning Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.3.9 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.4 OUTPUT SIGNALS (READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS . . . . . . . . . . . . . . . . . . . . 56
7 I²C BUS SPECIFICATION COMPATIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8 INPUT/OUTPUT SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
9 APPLICATION DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
11 SUMMARY OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
12 GENERAL PACKAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
12.1 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5/86
Page 6
STV224XH/228XH/223XH - GENERAL DESCRIPTION
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The STV224XH/228XH/223XH are fully bus-controlled ICs for TV that include PIF, SIF, Luma, Chroma
and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis,
STV9306 for a 110° chassis), they allow multistandard (BGDKIMNLL’, PAL/SECAM/NTSC) sets to be designed with very few external components and no manual adjustments.
Application
Package
SHRINK56 STV2246H/86H STV2247H STV2248H STV2249H
TQFP64 STV2236H STV2237H STV2238H STV2239H
PAL/NTSC
Intercarrier
PAL/NTSC
QSS/Intercarrier
PAL/SECAM/NTSC
QSS/Intercarrier
AM
PAL/SECAM/NTSC
QSS/Intercarrier
PAL/SECAM/NTSC XX
PAL/NTSC X X X
QSS/Intercarrier X X X
Intercarrier Only X X
AM X
Audio FM Wide mode with QSS Application X X X
1 EXT RGB Input (OSD) X
OSD RGB Inputs & RGBEXT/YCrCb Inputs X X X X
Function 2246H/36H 2286H 2247H/37H 2248H/38H 2249H/39H
1.2 PIN DESCRIPTION Table 1. Pin Configuration
PIN
SDIP56 TQFP64
1 8 SIFIN1 SIF Input (Please refer to Note 1)
2 9 SIFIN2 SIF Input (Please refer to Note 1)
3 10 AGCSIFCAP AGC SIF Capacitor (Please refer to Note 1)
411V
5 12 AGCPIFCAP AGC PIF Capacitor
6 13 PIFIN1 PIF Input
7 14 PIFIN2 PIF Input
- 15 SAW Filter Switch Control
8 16 TUNERAGCOUT AGC Tuner Output
9 17 IFPLL IF PLL Filter
10 18 GND
11 19 AM/FMOUT/SC AM/FM Mono Sound or Stereo Carriers Output
12 20 V
13 21 INTCVBSOUT Internal CVBS Output
14 22 EXTAUDIOIN External Audio Input
15 23 PIFLC1 LC Input
16 24 PIFLC2 LC Input
17 25 V
18 26 CVBSIN1 Internal Video Input
REFIF
CCIF
CC2
Symbol DescriptionSTV224XH/228XH STV223XH
Voltage Reference Filtering
IF
IF Ground
5 V IF Supply
Video/Luma Supply Voltage (8 V)
6/86
2
Page 7
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN
Symbol DescriptionSTV224XH/228XH STV223XH
SDIP56 TQFP64
19 27 GND2 Video/Luma Ground
20 28 CVBSIN2 External Video Input
21 29 BS Black Stretch Capacitor
22 34 Y/CVBSIN3 Y(SVHS) or CVBS3 External Input
23 35 CHR Chroma (SVHS) Input
24 36 APR Automatic RGB Peak Regulation
25 37 BEXT/Cb
26 38 GEXT/Y
27 39 REXT/Cr
28 40 FBEXT
29 41 NTBC/CVBSOUT1
30 43 BOUT Blue Output
31 44 GOUT Green Output
32 45 ROUT Red Output
33 46 I
34 47 BOSD OSD Blue Inpu t
35 48 GOSD OSD Green Input
36 49 ROSD OSD Red Input
37 50 FBOSD/HC OSD Fast Blanking Input / Half Contrast
38 52 XTAL3/BTUN 3.5X MHz Crystal or Bell Filter Tuning Capacitor
39 53 XTAL2 3.5X MHz Crystal
40 54 XTAL1 4.43/3.5X MHz Crystal
41 55 CLPF Chroma PLL Filter
42 56 X1/VAMP/CHROUT
43 57 GND1 Chroma/Scanning Ground
44 58 CVBSOUT2 Second Video Switch Output
45 59 V
46 61 BCL/SAF
47 62 VERT Vertical Output Pulse
48 63 HOUT Horizontal Output Pulse
49 64 LFB/SSC
50 1 SLPF Scanning PLL Filter
51 2 SCL I²C Bus Clock Input
52 3 SDA I²C Bus Data Input
53 4 V
54 5 GNDD Digital Ground
55 6 AUDIOOUT Main Audio Output
56 7 FMCAP FM Demodulation Capacitor
- 30 NC Connection to GND recommended
CATH
CC1
CCD
External Blue Input or external Cb Input
(Please refer to Note 2)
External Green Input or external Y Input
(Please refer to Note 2)
External Red Input or external Cr Input
(Please refer to Note 2)
External Fast Blanking Input (Please refer to
Note 3)
Not To Be Connected or CVBS Output 1
(Please refer to Note 4)
Cathode Current Measurement Input
XTAL1 Control Pin, Vertical Amplitude DAC
Output and Chroma Reference Signal Output
Chroma/Scanning Power Supply (8 V)
Beam Current Limiter Control Voltage and Safe-
ty Input (XRAY)
Line Flyback Input and Super-Sandcastle Output
Digital Supply Voltage (5 V)
7/86
2
Page 8
STV224XH/228XH/223XH - GENERAL DESCRIPTION
PIN
Symbol DescriptionSTV224XH/228XH STV223XH
SDIP56 TQFP64
- 31 NC Connection to GND recommended
- 32 NC Connection to GND recommended
- 33 NC Connection to GND recommended
- 42 NC Connection to GND recommended
- 51 NC Connection to GND recommended
- 60 NC Connection to GND recommended
Note 1: Input/Output not available in STV2246H/86H versions. This pin must not be connected.
Note 2: When REXT, GEXT and BEXT pins are not used, they must not be connected. Register 0Ah must be set (d7 and
Note 3: FBEXT to be connected to ground when not used.
Note 4: CVBS output 1 on pin 29 (SDIP56), if register 1Dh = 07h.
Figure 1. STV224XH/228XH Pinout (SDIP56)
d6 = 01). (RGB external inputs disabled.)
SIFIN1
SIFIN2
AGCSIFCAP
V
REFIF
AGCPIFCAP
PIFIN1
PIFIN2
TUNERAGCOUT
IFPLL
GND
AM/FMOUT/SC
V
CCIF
INTCVBSOUT
EXTAUDIOIN
PIFLC1
PIFLC2
V
CC2
CVBSIN1
GND2
CVBSIN2
BS
Y/CVBSIN3
CHR
APR
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
1
2
3
4
5
6
7
8
9
10
IF
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
FMCAP
AUDIOOUT
GNDD
V
CCD
SDA
SCL
SLPF
LFB/SSC
HOUT
VERT
BCL/SAF
V
CC1
CVBSOUT2
GND1
X1/VAMP/CHROUT
CLPF
XTAL1
XTAL2
XTAL3/BTUN
FBOSD/HC
ROSD
GOSD
BOSD
I
CATH
ROUT
GOUT
BOUT
NTBC/CVBSOUT1
Note: Underlined pin functions are optional.
8/86
Page 9
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 2. STV223Xh Pinout (TQFP64)
NC
Y/CVBSIN3
CHR
APR
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
NTBC/CVBSOUT1
NC
BOUT
GOUT
ROUT
I
CATH
BOSD
GOSD
ROSD
AM/FMOUT/SC
INTCVBSOUT
EXTAUDIOIN
CVBSIN1
CVBSIN2
NCNCNC
BS
XTAL2
XTAL3/BTUNNCFBOSD/HC
GND2
XTAL1
PIFLC1
PIFLC2
V
CC2
CVBSOUT2
GND1
X1/VAMP/CHROUT
CLPF
GND
V
IFPLL
CCIF
IF
TUNERAGCOUT
SAW
PIFIN2
PIFIN1
AGCPIFCAP
V
REFIF
AGCSIFCAP
SIFIN2
SIFIN1
FMCAP
AUDIOOUT
GNDD
V
CCD
SDA
SCL
SLPF
LFB/SSC
HOUT
VERT
BCL/SAFNCV
CC1
9/86
Page 10
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 3. STV2246H (SDIP56) Block Diagram
REXT/Cr
GEXT/Y
BEXT/Cb
FBEXT
CVBSOUT2
NTBC/CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
IFPLL
PIFLC2
PIFLC1
APR
ROSD
GOSD
FBOSD/HC
373635344633323130
24
27
26
RGB
RGB
HALF
TO YUV
25
28
CONTRAST
YUV
SWITCH
MATRIX
SAT./CONT
RGB
APR
3
RGB
SWITCH
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
HOUT
47
48
LFB/SSC
VAMP DC
CONTROL
495042414039
SLPF
X1/VAMP/CHROUT
SENSE
BCL/SAF
CONTRAST
CATH
I
DRIVE
BRIGHT.
CUT-OFF
BLANKING
CHROMA
2nd LOOP
HORIZONTAL
VERTICAL
SCANNING
1st LOOP
SEP
SYNC.
HORIZONTAL
DL
CLPF
XTAL1
BS
21
BLACK
STRETCH
LUMA DL
PEAKING
44
29
18
20
22
TRAP
FILTER
CHROMA
& CORING
TUNING
ACC & ACC
OVERLOAD
FILTER
BANDPASS
KILLER
AUTO IDENT.
Mute
XTAL2
PAL/NTSC
DEMODULATOR
XTAL3
38
FMOUT
1114
EXTAUDIOIN
AVL
23
56
DEEMP.
SOUND BP
13
9
AFC
W/B SPOT
16
PLL
15
FM DEMO D
INVERTER
FM Mono
Mute
AUDIOOUT
55
VOLUME
V
4
REF
REF
AUDIO
SCL
SDA
I²C BUS
52 51
AGC
STV2246H
7
PIFIN26PIFIN1
TUNER AG C
8
5
1
NTBC2NTBC3NTBC
53
54
10
12
IF
CCD
CCIF
V
V
GNDD
GND
DECODER
45
43
19
17
CC1
CC2
V
V
GND1
GND2
AGCPIFCAP
TUNERAGCOUT
10/86
Page 11
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 4. STV2247H (SDIP56) Block Diagram
REXT/Cr
GEXT/Y
BEXT/Cb
FBEXT
CVBSOUT2
NTBC/CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
IFPLL
PIFLC2
PIFLC1
APR
ROSD
FBOSD/HC
GOSD
373635
24
27
26
RGB
TO YUV
25
28
YUV
SWITCH
APR
HALF
CONTRAST
MATRIX
SAT./CONT
RGB
3
RGB
SWITCH
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
34
46
323130
33
SENSE
BCL/SAF
CATH
I
CONTRAST
DRIVE
BRIGHT.
CUT-OFF
BLANKING
HOUT
47
48
LFB/SSC
2nd LOOP
HORIZONTAL
VERTICAL
SCANNING
1st LOOP
SEP
SYNC.
HORIZONTAL
DL
CHROMA
50 4942414039
VAMP DC
CONTROL
SLPF
X1/VAMP/CHROUT
CLPF
XTAL1
BS
21
44
29
18
20
22
23
56
13
9
16
15
BLACK
PLL
STV2247H
TRAP
FILTER
PEAKING
STRETCH
LUMMA DL
CHROMA
& CORING
TUNING
ACC & ACC
OVERLOAD
FILTER
BANDPASS
Sound Subcarriers
FM Mono
DEEMP.
SOUND BP
FM DEMOD
AFC
W/B SPOT
INVERTER
Carrier
PLL Refere nc e
1
SIFIN12SIFIN2
AGC
3
AGCSIFCAP
53
54
12
CCD
V
V
GNDD
AGC
TUNER AGC
7
8
5
PIFIN26PIFIN1
AGCPIFCAP
KILLER
AUTO IDENT.
Mute
XTAL2
PAL/NTSC
DEMODULATOR
XTAL3
38
FMOUT/SC
111455
EXTAUDIOIN
AVL
Mute
AUDIOOUT
VOLUME
V
4
REF
REF
AUDIO
SCL
SDA
I²C BUS
52 51
DECODER
10
45
43
19
17
IF
CC1
CCIF
CC2
V
V
GND1
GND
GND2
TUNERAGCOUT
11/86
Page 12
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 5. STV2248H (SDIP56) Block Diagram
REXT/Cr
GEXT/Y
BEXT/Cb
FBEXT
CVBSOUT2
NTBC/CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
APR
ROSD
FBOSD/HC
GOSD
373635
24
27
26
RGB
HALF
TO YUV
25
28
BS
21
BLACK
44
29
18
20
22
CONTRAST
YUV
SWITCH
STRETCH
MATRIX
SAT./CONT
LUMA DL
PEAKING
& CORING
RGB
APR
3
RGB
SWITCH
TRAP
CHROMA
BOSD
BCL/SAF
34
4633323130
BCL/SAF
CONTRAST
FILTER
TUNING
CATH
I
SENSE
CATH
I
DRIVE
BRIGHT.
ROUT
GOUT
CUTOGG
BLANKING
ACC & ACC
OVERLOAD
Sound Subcarrier
FM Mono
BOUT
VERT
HOUT
47
48
LFB/SSC
49
SLPF
50
VAMP DC
CONTROL
X1/VAMP/CHROUT
42
CLPF
414039
KILLER
BELL
XTAL1
XTAL2
DEMODULATOR
PAL/SECAM/NTSC
XTAL3/BTUN
38111455
TUNING
AM/FMOUT/SC
VERTICAL
SYNC.
DL
CHROMA
FILTER
BANDPASS
BELL
FILTER
2nd LOOP
HORIZONTAL
SCANNING
1st LOOP
SEP
HORIZONTAL
AUTO IDENT.
Mute
EXTAUDIOIN
23
56
13
DEEMP.
SOUND BP
FM DEMOD
AM
Mono
AVL
Mute
IFPLL
PIFLC2
PIFLC1
9
16
15
PLL
STV2248H
AFC
W/B SPOT
INVERTER
Carrier
LIMITER
PLL Reference
AUDIOOUT
VOLUME
4
V
REF
REF
AUDIO
SCL
AGC
TUNER AGC
8
5
7
PIFIN26PIFIN1
AGCPIFCAP
1
SIFIN12SIFIN2
AGC
3
53
54
10
12
45
43
IF
GNDD
CC1
CCIF
V
V
GND1
GND
CCD
V
AGCSIFCAP
SDA
I²C BUS
52 51
DECODER
19
17
CC2
V
GND2
TUNERAGCOUT
12/86
Page 13
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 6. STV2249H (SDIP56) Block Diagram
REXT/Cr
GEXT/Y
BEXT/Cb
FBEXT
BS
CVBSOUT2
NTBC/CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
ROSD
FBOSD/HC
APR
24
27
26
RGB
TO YUV
25
28
YUV
SWITCH
21
BLACK
STRETCH
29
1820 44
22
23
56
13
APR
HALF
CONTRAST
MATRIX
SAT./CONT
LUMA DL
PEAKING
& CORING
GOSD
37363534463332
RGB
3
RGB
SWITCH
TRAP
CHROMA
FM
Mono
DEEMP.
SOUND BP
FM DEMOD
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
30
31
SENSE
BCL/SAF
CATH
CONTRAST
I
DRIVE
BRIGHT.
CUT-OFF
BLANKING
FILTER
TUNING
ACC & ACC
OVERLOAD
Sound Subcarrier
HOUT
47
48
LFB/SSC
2nd LOOP
HORIZONTAL
495042
SLPF
VERTICAL
SCANNING
1st LOOP
SEP
SYNC.
DL
CHROMA
FILTER
BANDPASS
BELL
FILTER
VAMP DC
CONTROL
HORIZONTAL
X1/VAMP/CHROUT
CLPF
414039
KILLER
AUTO IDENT.
BELL
XTAL1
XTAL2
DEMODULATOR
PAL/SECAM/NTSC
XTAL3/BTUN
38111455
TUNING
FMOUT/SC
EXTAUDIOIN
AVL
Mute Mute
13/86
IFPLL
PIFLC2
PIFLC1
9
AFC
W/B SPOT
16
15
INVERTER
Carrier
PLL Reference
AUDIOOUT
VOLUME
V
4
REF
REF
AUDIO
SCL
AGC
STV2249H
7
TUNER AGC
8
5
PIFIN26PIFIN1
AGCPIFCAP
1
SIFIN12SIFIN2
AGC
3
53
54
10
12
45
43
IF
CCD
V
GNDD
CC1
CCIF
V
V
GND1
GND
SDA
I²C BUS
52 51
DECODER
19
17
CC2
V
GND2
AGCSIFCAP
TUNERAGCOUT
Page 14
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 7. STV2286H (SDIP56) Block Diagram
NTBC
NTBC
NTBC
CVBSOUT2
NTBC/CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
APR
ROSD
FBOSD/HC
GOSD
3736353446243332313047
27
26
HALF
2528
CONTRAST
MATRIX
SAT./CONT
APR
RGB
3
RGB
SWITCH
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
HOUT
48
LFB/SSC
SENSE
BCL/SAF
CONTRAST
CATH
I
DRIVE
BRIGHT.
CUT-OFF
BLANKING
CHROMA
2nd LOOP
HORIZONTAL
VERTICAL
SCANNING
1st LOOP
SEP
SYNC.
HORIZONTAL
DL
4950
VAMP DC
CONTROL
42414039
SLPF
X1/VAMP/CHROUT
CLPF
BS
21
BLACK
STRETCH
LUMA DL
PEAKING
TRAP
FILTER
CHROMA
& CORING
TUNING
ACC & ACC
OVERLOAD
FILTER
BANDPASS
AUTO IDENT.
44
29
182022
235613
DEEMP.
SOUND BP
FM DEMOD
Mute
FM Mono
Mute
XTAL1
KILLER
XTAL2
PAL/NTSC
DEMODULATOR
XTAL3
38
FMOUT
11
EXTAUDIOIN
14
AVL
IFPLL
PIFLC2
PIFLC1
9
16
15
PLL
STV2286H
AFC
W/B SPOT
INVERTER
AUDIOOUT
VOLUME
4
V
REF
REF
AUDIO
SCL
AGC
TUNER AG C
8
5
7
PIFIN26PIFIN1
1
NTBC2NTBC3NTBC
53
54
10
12
45
43
IF
CCD
V
GNDD
CC1
CCIF
V
V
GND1
GND
SDA
I²C BUS
52 51
DECODER
19
17
CC2
V
GND2
AGCPIFCAP
TUNERAGCOUT
14/86
Page 15
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 8. STV2236H (TQFP64) Block Diagram
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
CVBSOUT2
CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
APR
36
FBOSD/HC
ROSD
504948
GOSD
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
47
46
45
43
61
44
HOUT
62
63
APR
STV2236H
37
38
RGB
TO YUV
39
HALF CTR
RGB
SENSE
BCL/SAF
CONTRAST
CATH
I
2nd LOOP
HORIZONTAL
VERTICAL
SCANNING
LFB/SSC
6455
SLPF
1
40
1st LOOP
SEP
YUV
MATRIX
SWITCH
SAT./CONT
RGB
DRIVE
BRIGHT.
SWITCH
CUT-OFF
BLANKING
SYNC.
DL
CHROMA
VAMP DC
CONTROL
HORIZONTAL
X1/VAMP/CHROUT
56
CLPF
PAL/NTSC
AVL
DEMODULATOR
XTAL1
XTAL2
XTAL3
52 53 5419
FMOUT
EXTAUDIOIN
22
BS
29
BLACK
STRETCH
LUMA DL
PEAKING
58
41
26
28
34
TRAP
FILTER
CHROMA
& CORING
TUNING
ACC & ACC
OVERLOAD
FILTER
BANDPASS
KILLER
AUTO IDENT.
Mute
FM Mono
35
7
21
SOUND BP
FM DEMOD
DEEMP.
Mute
15/86
IFPLL
PIFLC2
PIFLC1
17
AFC
W/B SPOT
24
PLL
23
4
5
CCD
V
GNDD
INVERTER
AGC
TUNER AGC
9
13
14
12
16
PIFIN1
PIFIN2
AGCPIFCAP
TUNERAGOUT
8
NTBC
NTBC
SAW FILTER
SWITCH CONTROL
10
15
18
20
59
57
IF
CC1
CCIF
SAW
NTBC
V
V
GND1
GND
AUDIOOUT
611
VOLUME
V
REFIF
REF
AUDIO
SCL
2
SDA
I²C BUS
DECODER
27
25
CC2
V
GND2
Page 16
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 9. STV2237H (TQFP64) Block Diagram
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
CVBSOUT2
CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
APR
FBOSD/HC
ROSD
36
GOSD
504948476146454443
APR
37
38
RGB
TO YUV
39
40
HALF CTR
YUV
MATRIX
SWITCH
SAT./CONT
RGB
RGB
SWITCH
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
HOUT
62
63
STV2237H
SENSE
BCL/SAF
CONTRAST
CATH
I
DRIVE
BRIGHT.
CUT-OFF
BLANKING
CHROMA
2nd LOOP
HORIZONTAL
VERTICAL
SCANNING
1st LOOP
SEP
SYNC.
HORIZONTAL
DL
VAMP DC
CONTROL
LFB/SSC
SLPF
1645655545352
X1/VAMP/CHROUT
CLPF
BS
29
BLACK
STRETCH
LUMA DL
PEAKING
5841262834
& CORING
TRAP
FILTER
CHROMA
TUNING
ACC & ACC
OVERLOAD
FILTER
BANDPASS
Sound Sub ca rrier s
KILLER
AUTO IDENT.
Mute
FM Mono
XTAL1
XTAL2
PAL/NTSC
DEMODULATOR
XTAL3
FMOUT/SC
1922
EXTAUDIOIN
DEEMP.
35
7
SOUND BP
FM DEMO D
AVL
Mute
IFPLL
PIFLC2
PIFLC1
17
AFC
W/B SPOT
24
PLL
23
5
4
CCD
V
GNDD
INVERTER
Carrier
PLL Reference
AGC
TUNER AGC
16
12
14
13
PIFIN1
PIFIN2
AGCPIFCAP
AGC
SAW FILTER
SWITCH CONTROL
9
10
15
18
20
59
57
IF
CC1
CCIF
SIFIN28SIFIN1
SAW
V
V
GND1
GND
AGCSIFCAP
61123
AUDIOOUT
VOLUME
V
REFIF
REF
AUDIO
SCL
SDA
I²C BUS
DECODER
27
25
CC2
V
GND2
TUNERAGCOUT
16/86
Page 17
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 10. STV2238H (T QFP64) Blo ck Diagr am
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
BS
CVBSOUT2
CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
APR
FBOSD/HC
ROSD
36
50494847614645
GOSD
CATH
BOSD
BCL/SAF
I
ROUT
GOUT
BOUT
VERT
446243
HOUT
63
APR
STV2238H
37
38
YUV
RGB TO
39
40
HALF CTR
YUV
SWITCH
MATRIX
SAT./CONT
RGB
RGB
SWITCH
SENSE
BCL/SAF
CONTRAST
CATH
I
DRIVE
BRIGHT.
CUT-OFF
BLANKING
CHROMA
29
BLACK
STRETCH
LUMA DL
PEAKING
TRAP
FILTER
CHROMA
& CORING
TUNING
ACC & ACC
BANDPASS
OVERLOAD
5841262834
CLOCHE
Sound Subcarriers
FM
Mono
DEEMP.
35
7
SOUND BP
21
FM DEMOD
AM
Mono
2nd LOOP
HORIZONTAL
LFB/SSC
64156
SLPF
VERTICAL
SCANNING
1st LOOP
SEP
SYNC.
DL
FILTER
FILTER
VAMP DC
CONTROL
HORIZONTAL
X1/VAMP/CHROUT
CLPF
555453521922611
KILLER
AUTO IDENT.
XTAL1
XTAL2
DEMODULATOR
PAL/SECAM/NTSC
XTAL3/BTUN
TUNING
CLOCHE
Mute
AM/FM OUT/SC
EXTAUDIOIN
AVL
Mute
17/86
IFPLL
PIFLC2
PIFLC1
17
AFC
W/B SPOT
INVERTER
24
PLL
23
Carrier
PLL Referenc e
AGC
TUNER AGC
5
4
CCD
V
GNDD
14
13
PIFIN1
PIFIN2
16
12
AGCPIFCAP
LIMITER
AGC
SAW FILTER
SWITCH CONTROL
9
10
15
18
20
59
57
IF
CC1
CCIF
SIFIN28SIFIN1
SAW
V
V
GND1
GND
AGCSIFCAP
AUDIOOUT
VOLUME
V
REFIF
REF
AUDIO
23
SCL
SDA
I²C BUS
DECODER
27
25
CC2
V
GND2
TUNERAGCOUT
Page 18
STV224XH/228XH/223XH - GENERAL DESCRIPTION
Figure 11. STV2239H (T QFP64) Blo ck Diagr am
APR
FBOSD/HC
ROSD
36
GOSD
5049484761464544436362
CATH
BCL/SAF
BOSD
I
ROUT
BOUT
VERT
GOUT
HOUT
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
BS
CVBSOUT2
CVBSOUT1
CVBSIN1
CVBSIN2
Y/CVBSIN3
CHR
FMCAP
INTCVBSOUT
IFPLL
PIFLC2
PIFLC1
APR
37
38
RGB
HALF CTR
TO YUV
39
40
YUV
MATRIX
SWITCH
SAT./CONT
RGB
RGB
SWITCH
SENSE
BCL/SAF
CONTRAST
CATH
I
DRIVE
BRIGHT.
CUT-OFF
BLANKING
HORIZONTAL
VERTICAL
SCANNING
SEP
SYNC.
HORIZONTAL
DL
CHROMA
STV2239H
2nd LOOP
LFB/SSC
641565554535219
SLPF
1st LOOP
VAMP DC
CONTROL
X1/VAMP/CHROUT
CLPF
29
BLACK
STRETCH
LUMA DL
PEAKING
58
TRAP
CHROMA
& CORING
FILTER
TUNING
ACC & ACC
OVERLOAD
FILTER
BANDPASS
FILTER
CLOCHE
Sound Subcarriers
KILLER
AUTO IDENT.
CLOCHE
Mute
FM Mono
34 28 26 41
DEEMP.
35
7
SOUND BP
21
17
AFC
W/B SPOT
24
PLL
23
FM DEMOD
INVERTER
Carrier
PLL Reference
Mute
XTAL1
XTAL2
DEMODULATOR
PAL/SECAM/NTSC
XTAL3/BTUN
TUNING
FMOUT/SC
EXTAUDIOIN
2261132
AVL
AUDIOOUT
VOLUME
V
REFIF
REF
AUDIO
AGC
TUNER AGC
5
4
CCD
V
GNDD
14
13
PIFIN1
PIFIN2
16
12
AGCPIFCAP
AGC
SAW FILTER
SWITCH CONTROL
9
10
15
18
20
59
57
IF
CC1
CCIF
SIFIN28SIFIN1
SAW
V
V
GND1
GND
AGCSIFCAP
SCL
I²C BUS
SDA
DECODER
27
25
CC2
V
GND2
TUNERAGCOUT
18/86
Page 19
STV224XH/228XH/223XH - MAIN FEATURES
2 MAIN FEATURES
■ I²C Bus control (Read and Wri te modes).
■ PLL PIF demodulator, bus-controlled VCO
alignment.
■ Positiv e an d neg ative IF modu la t io n.
■ Digital AFC.
■ Tuner-delayed AGC output.
■ White and Black Spot cancellation.
■ SIF with QSS structure.
■ Intercarrier capability.
■ Built- in so un d bandpas s.
■ Multi s tandard PLL FM Demodulator ( 4.5, 5.5,
6.0, 6.5 MH z ) .
■ Audio FM Wide mode (BGDKI): Capable o f
demodulating ±400 kHz overmodulated audio
signals, to be used in QSS architecture.
■ AM demodulator for France.
■ Sound su bc ar ri er ou t pu t for St ere o c has si s: FM
and NICAM car ri er s .
■ Audio switch for external audio input, Mono
chassis.
■ Digital volume control.
■ Audio Mute.
■ Automatic Volume Levelling (AVL) on audio
signal (internal or external au dio).
■ Digital buffer for SAW filter switching.
■ Video switch, t hree Composite Video
Broadcasting Signal ( CVBS) inputs and two
CVBS outputs (which can be used to drive a
teletext decoder ).
■ SVHS switch, Y input is combine d with CVBS3
input.
■ Capability to output Y+C signal on second
CVBS output.
■ OSD RGB analog inputs, fast blanking
detec tion on fast blanking OSD pin, contrast
control capabi lity.
■ Half-contrast control pin.
■ External analog RGB inputs with contrast and
saturation control (external RGB ma trixed in
YUV). Ex ternal analog YCr Cb inputs can be
connected to the same inputs. In this case, the
sync si gnal must be sent to th e CVBS inpu t, and
Exter nal YCr Cb mo de mu st be se lect ed th rough
the I²C bus.
■ Y,U,V inputs outputs: Y,U,V inputs/outputs for
the us e of enhanced picture ICs.
■ Integrated chr oma filters (trap, bandpass, bell)
with automatic alignment.
■ Integrat ed luminance delay line.
■ Adjustable peaking on the luminance signal with
coring function.
■ Black Stretc h circuit.
■ Automatic RGB peak regulation (APR) or RGB
peak limitation.
■ PAL/SECAM/NTSC color decoder with
automatic identification of standards.
■ Integrated chroma delay line.
■ Full integrated SECAM decode r.
■ Hue control, 2 selectable matrices in NTSC
mode.
■ Automatic Flesh Con trol circuit with tw o
selectable characteristics (normal and wide).
■ Automatic Color Control (ACC) overload circuit.
■ Chroma subcarrier output which could be used
to drive a comb filter circuit.
■ Automatic digital cut-off current loop with warm-
up detection circuit.
■ White point (drive) and cut-off point
adjustments.
■ Manual cut-off capability.
■ Beam current limiter control stage.
■ High-performance sync pulse separa tor.
■ Horizontal synchr onization with two phase-
locked loops.
■ Integrated VCO, auto-calibration using the
chroma crystal reference frequency.
■ Automa tic tim e cons ta nt sele ct io n for the firs t
PLL, three selectable time constants.
■ Video identification circuit (independent from
PLL1).
■ Noise dete ctor circuit.
■ Vertical countdown circuit.
■ Automatic 50/60 Hz selection circuit.
■ Blanking and inserted cut-off pulses position
adapte d to standar d (50 or 60 Hz ).
■ Long blan king mode capabili ty in 60 Hz (same
blanking as with 50Hz standard).
■ De-inte rlace capability.
■ Horizontal starting circuit with soft-start
capability.
■ Horizontal and vertical position adjustments,
vertical amplitude control voltage (combined
with chroma subcarrier output).
■ Over s iz e Blanking ca pa bi lity on OSD Fas t
Blanking input.
19/86
Page 20
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
3 FUNCTIONAL DESCRIPTION
The STV224XH/228XH is an integrated device
that processes PIF, SIF, Video and Chroma signals while scanning for PAL, SECAM and NTSC
stand ards. It includ es a base ba nd chr oma de lay
line, Video, SVHS and audio switches.
3.1 DETAILED FEATURES
3.1.1 Power Supplies
V
: 5 V power supply dedicated to IF proces-
CCIF
sors. GNDIF is the ground reference of these
parts.
: 5 V powe r sup ply de dica te d to I²C bus an d
V
CCD
digital parts. GNDD is the ground reference of
these parts.
V
: 8 V power supply for video switches, scan-
CC1
ning part and the chroma decoder. GND 1 is the
ground reference of all these functions.
V
: 8 V po wer suppl y for the lumi nance, RGB
CC2
proces sing pa rts audi o switc h and int ernal CVBS
output. GND2 is the ground reference of these
parts.
3.1.2 Picture Intermediate Frequency (PIF)
– AGC amplifier.
– PLL synchronous demo dulator. Bus-cont rolled
VCO for integrated tuning of the external LC resonator. For a 38.9 MHz VCO, the LC coil specification has to be:
C = 39pF, f = 44 MHz ±2% (LC not connected).
For a 33.9 MHz VCO (L’), the VCO can be
switched via the bus control.
– Digital AFC via bus.
– IF Automatic Gain Control (AGC)
Negative modulation: top sync regulation, regu-
lation of ove rmo du la ted s ig na ls (ove r mod ulat i on
regulation circu it en ab le d thr o ug h bus contr ol ).
Positive mod ula ti on : ma in reg ulation on white
level with black level limitation.
– Tuner-delayed AGC with bus control for AGC
gain and threshold. Tuner AGC output status can
be read in I²C bus read register.
– CVBS output with two bus-controlled ampli-
tudes. CVBS output at 2 V
trap is not connected (QSS mode, for examp le).
CVBS outp ut at 2.3 V
connected.
3.1.3 So und Int erm edi ate F req uen cy ( SIF) a nd Sound Demodulators
– QSS structure.
– SIF Automatic Gain Control (QSS mode).
if external sound
PP
if external sound trap is
PP
– Bui lt - in so und bandpa s s.
– PLL FM Demodulator for 4.5, 5.5, 6.0 or 6.5 MHz
carriers. The Sound Standard is selected by the
MCU. The FM demodulator VCO is automatically
calibrated using the chroma crystal VCO reference frequency. The FM Demodulator VCO is
automatically calibrated for all so und standa rds
independently of the chroma crystal VCO frequency, w h ic h i s eit he r 4. 4MHz or 3. 5MHz. Fo r
each sound carrier frequency, the IC sends an
indication of the sound subcarrier level to the
MCU so that it can select the proper standard.
In Normal mode, the maximum FM de viation i s
200 kHz. In Audio FM Wide mode (BGDKI), the
maximum FM deviation is 400 kHz. The Audio
FM Wide mode of the STV224XH must be used
in QSS applications only, using standard specific
SAW filters (DK SAW filter or BG SAW filter).
– The sound subcarrier level is valid when the FM
Demodulation VCO is calibrated. This information can be read via the I²C Bus.
– Bus controls for FM de-emphasis (50 or 75 µs)
and FM de viation ±25 or ±50kHz).
– AM demod ulato r.
– Sound demodulator output: either an AM or FM
signal can be the ou tput for the Mono chassis
– Sound subcarriers for the Stereo chassis .
3.1.4 Audio Switch
– One SCART switch.
– Bus-controlled volume and mute. Zero-crossing
function on volume control.
– Automatic Volume Lev elling (AVL) function can
be enabl ed via the I²C bus.
– AVL status (Min. or Max. AVL Gain) can be read
in I²C bus register.
– Th e A M so un d ca n be sele cted on the main au-
dio output for the Stereo chassis.
3.1.5 Surface Acoustic Wave (SAW) Filter Switch Control
– SAW filter switch control pin is available in the
TQFP64 package. The SAW filter switch control
pin is used to select the correct SAW filter char -
acteristics (e.g.: M/N or BGDK characteristics).
In a multi-standard chassis, two output voltages
are selected via the I²C bus (low level voltage at
0.4 V Max., and high level voltage at 4 V Min.).
3.1.6 Video Switches
– Video switch with three CVBS inpu ts and one
CVBS output (CVBSOUT1) which may be used
to drive a teletext decoder.
20/86
Page 21
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
– A second CVBS output (CVBSOUT2) is able to
output recombined Y+C signals.
All switches are independently controlle d.
– SVHS switch, Y input is combined with CVBS 3
input. CVBS/SVHS modes can be selected either by bus control (software selection), or by
sensin g the D C vol t age on th e Ch r oma In pu t p in
(hardware selection). If the Chroma Input is
grounded, the CVBS mode is selected and the
bus control is not active. If the DC level of the
Chroma Input is high er th an the SV HS thr esho ld,
then the bus control for the SVHS switch is active. T h eref o re, t he SV HS mode c an be s el ec ted
by hardware using a specia l SVHS connector
that includes a mechanical switch. In this type of
application, the bus control is set to SVHS mode,
and the CVBS mode is selected by grounding the
Chroma I np ut pin.
3.2 DEFLECTION PART
3.2.1 Sync hronization Separato r
– Fully-integrated synchronization separator with a
low pass filter, black level alignment of the CVBS
input, and a 50% slicing level for the syn chronized pu ls e am pl itude.
3.2.2 Two Phase-Locked Loops (PLL)
Auto-calibrated VCO using the chroma crystal reference. Crystal control pin X1/VAMP/CHROUT indicates the crysta l referenc e value on PinXTAL1 .
When a 4.43 MHz crystal is connected to
Pin XTAL1, the output load on Pin X1/VAMP/
CHROUT must be greater than 80 kW. When a
3.58 MHz crystal is connected to Pin XTAL1, the
output load must be less than 10 kW.
The fir st PLL lock s the VCO to the vide o line frequency and the second PLL compensates the line
transistor storage time.
Three time constants for the first PLL.
– [X,Y]: Line number referring to the internal line
counter numbering system .
The long time constant is used for normal operation.
The short time constant is automatically used during the VCR search mode and frame retrace when
the frame pulse is outside [258,264] and
[309,314].
The very long time constant is used when there is
no vide o recognition (very good OSD stability).
Time constants in normal operation (automatic selection of time constants):
– 50 Hz input signal:
short time constant: [306,21],
long time constant: the rest of the field.
– 60 Hz input signal:
short time constant: [0,16],
long time constant: the rest of the field.
3.2.2.1 Inhibition of the First PLL
The first PLL is inhibited from line 309 to line 4.5
(or 314) in 50 Hz mode and from line 258 to line
5.5 (or 26 4) in 60Hz mode. Th e time con st ant val ues are chosen by means of external components.
– Possibility of forcing the short time constant dur-
ing the all frame via the bus.
– Possibility of forcing the long time constant dur-
ing the all frame via the bus.
– Possibility of forcing a very long time constant
during the all frame via the bus.
Generation of burst gate pulses and line frequency
signal s from the fir st PLL to drive the Chroma and
Video circuits. The burst gate pulse is also sent to
the super-sandc astle generator.
3.2.3 Video Identification
The video identification status is available in the
outpu t re gis ter of th e I² C b us deco der ( ind epen dent from PLL1).
3.2.4 Vertic al Synchr onization
Frame synchronized window:
– large wind ow: [248,352] in AUTO mode,
[248,284] in forced 60 Hz mode, [288,352] in
forced 50 Hz mode.
– narrow window: [309,314] in 50 Hz mode,
[258,264] in 60 Hz mode.
Field frequency selectio n windows:
– [248,284] 60 Hz mode selection window.
– [288,352] 50 Hz mode selection window.
Frame blanking pulse adapted to standard:
– fro m lin e 309 to line 21 in 50 Hz mo de ,
– fro m lin e 258 to line 16 in 60 Hz mo de .
3.2.5 Vertic al Blanking
Long blanking mode: the end of frame blanking is
line 21 both in 50 and 60 Hz modes. This mode is
usefu l w h e n th e flybac k t im e of t h e v ertical ou tp ut
stage is longer than the 60Hz blanking time. It is
used to opti mize the 50/6 0 Hz vertical am plif ier ap plicat ion due to long frame blanking.
3.2.6 Vertical Oversize Blanki ng
The Oversized Blanking function is controlled by
the voltage on the FBOSD pin. When the FBOSD
voltage i s be t wee n t he fir st an d t he sec on d thr e sh-
21/86
Page 22
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
olds, the OSD RGB signals are selected. When
the FBOSD voltage is greater than the second
thresh old (4 V blanking thresh old), th e RGB ou tputs are blanked during the whole field, but not
during inse rte d cu t-of f li nes (the c ut -off lo op is a lways active). The blanking feature, via the FBOSD
input pin, enables Vertical Oversize Blanking
when a 4: 3 pict ur e is di sp la yed on a 1 6: 9 scre en in
Zoom mode. The picture outside the screen is
blanked by the Oversize Blanking pulse supplied
by the external vertical IC (STV9306).
3.2.7 Vertical Output
The Vertical output pulse is locked on a pulse that
is twice the horizontal frequency to ensure perfect
interlacing.
The Vertical output pulse duration is 10.5 lines.
Horizontal output pulse is a 28µs line pulse on an
open collector output.
3.2.8 Vertical Control
Bus-controlled DC outp ut voltage for adjusting the
vertica l a mp li tude ( pin V AMP ) . Th is vol tag e su pp ly
is used to adjust the slope of the vertical sawtooth
generated by the external vertical booster.
Bus-controlled vertical position (pin VERT). The
high level of the vertical pulse is used to adjust the
vertical position.
The bus -con tro lled vertic al ou tp ut (pin VER T) l ow
level voltage can be either 0.2 V or 2.0 V.
3.2.9 Horizontal Output
Start-up circuit: the horizontal output is at high level (disabled) when V
and when V
CCD
increases from 0 to 6.0 V
CC1
has not reached 4 V.
Soft mode circuit: it provides a softer operating
horizontal output with a 75% duty cycle [t
(t
HIGH+tLOW
time (16 µs instead of 28 µs).
)]. Thi s r esu lt s in a sma l ler cond uct i ng
HIGH
This mode is active at start-up until two frames after the V
active at shutdown when the V
6 V and 5.4 V. An d fin ally, this m od e is use d if th e
V
CC2
reaches 75% of the V
CC2
drops below 75% of the V
. It is also
CC1
floats between
CC1
.
CC1
At shutdown, h orizontal p u ls es are disabl ed when
V
is less th an 5.4 V or when V
CC1
3.5 V.
is less than
CCD
The horiz ontal outp ut pulse may be disabled via
the bus (force a high level on HOUT).
The horizontal position adjustment is controlled via
the bus.
3.2.10 Horizontal Control
Safety input on BCL Pin. When the BCL Pin is
switch ed t o gro und, th e hor izo ntal out put p uls e is
disabled and the inhibition of horizontal output
pulse is maintained until V
(V
power sup ply is switched off). The Safety
CC1
function can be disabled via the I²C bus. When
is less than 3 V
CC1
register 15hex d ata D7 i s set to “1”, the Sa fety
function is reset and no longer active.
3.2.11 Combined Line Flyback / SuperSandcastle
Combined L i ne Fly ba ck in pu t a nd Sup er -S an dc as tle output: The line blanking level is clamped at
3 V, the burst key pulse voltage is 5 V and vertical
pulse voltage is 2 V. The line pulse is extracted
with a 2.5 V sl ic ing leve l u s ed for RG B line blan king and PLL2 control.
3.2.12 Line Blan king
Line blanking at RGB outputs is logical OR of line
flyback pulse and internal line blanking pulse with
a 12 µs width.
In Wide Line Blanking mode, line blanking at RGB
outputs is logical OR of line flyback pulse and internal line blanking pulse with a 15.8 µs width.
Wide line blanking is recommended when displ aying a 4:3 image on a 16:9 screen (horizontal scanning reduction).
3.2.13 Copy Protection Mode
This mode is used to improve the display of copyprotected video signals.
3.3 FILTERS
3.3.1 Integr ated Trap Filter
Q = 1.5 (f-3dB = f0 (1-1/2Q)),
Center fr eq ue n cy :
– 4.4 3 MHz, 3. 58 M H z for PA L and NTS C.
/
– 4.25 MHz, for SECA M
(-20 dB rejection between 4.1 MHz and
4.4 MHz).
The chroma trap filter is switched off in SVHS
mode, or in color standard search mode (standard
not identified). In external YCrCb mode, the trap
and luma d elay can be switch ed of f vi a the I²C bus.
3.3.2 Integr ated Chroma Bandpa ss
Q = 3.5, Center frequency: 4.43 MHz, 3.58 MHz.
The Bu s Co ntrol Freque ncy Shift i s used to optimize the chroma response for the video signal
from the IF stage.
3.3.3 Integrated Bell Filter for SECAM
Q = 16, Center frequency: 4.286MHz.
The Bu s Co ntrol Freque ncy Shift i s used to optimize the chroma response for the video signal
from the IF stage.
22/86
Page 23
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
3.3.4 Integrated Luma Delay Line
Bandwidth: 8 MHz.
The Lu ma Del ay L ine i s auto mati ca lly adap te d to
the ch roma standard. For PAL BG and applic ations w ithout gr oup delay compens ation, a Lu ma
Delay S hift of -14 0 ns can b e sele ct ed vi a the I ²C
bus.
3.3.5 Filter Tuning
All filters are tuned via a reference phase-locked
loop. Th e PLL is based on a trap filter , a phase
compar ator an d an i nternal loop f ilter ( capac itor).
The reference signal is the continuous carrier
wave from the Chroma VCO (4.43 MHz or
3.58 MHz). The PLL adjusts the center frequency
of the trap until it equals the reference signal.The
PLL tuning voltage is used to adjust all other integrated filters. The Bell filter is fine-tuned with a
second PLL during the frame retrace. The Bell filter tuning voltage is memorized on an external capacitor (BTUN Pin).
3.4 VIDEO CIRCUIT
3.4.1 RGB Inputs
The RG B (O SD) i nput ha s pri ori ty ov er the e xternal RGB input. The RGB (EXT) source is matrixed
into YUV signals for color and contrast adjustments. The brightness is adjusted according to the
interna l and extern al R G B and OSD RG B sig na ls .
The Cont rast Co ntrol re gulates both exte rnal an d
intern al RGB signa l s an d h as a m aximu m at ten ua tion of -24 dB. It also regulates the OSD RGB signal and its maximum attenuation is limited to
-12 dB. The Contrast Control for RGB (OSD) input
can be di sabled via the bus. Th e brightness of the
RGB (OSD) input varies according to the main
brightness level.
The RGB (E XT) ins er ti on si gn al ca n be d isabl e d o r
forced via the bus. A fast blanking de tector on the
external fa st blanking inp ut is able to detect the
Fast Blanking pulse occurrence at each frame and
then memorizes it until the end of the next frame.
RGB Insertion is controlled either by an external
signal on the F BEXT pin or via the I²C bus. The
Fast Bl anking de tection st atus is se nt to the I²C
bus read register.
3.4.2 YCrCb Mode
External YCrCb signals can be applied to RGB
(EXT) inputs. Tw o input modes are possible:
– The Sync signal is applied to CVBS input, the Y
signal is applied to GEXT, the Cr signal is applied
to REXT and the Cb signal is applied to BEXT.
– The Y signal is appl ied to CVBS in put, th e Cr sig -
nal is appl ie d to R EXT an d the Cb sig na l is ap -
plied to G EXT. T he t rap an d lu ma de lay line m ust
be disa bled by the I²C bus and peaking m ust be
set to mini mum.
The OSD fast blanking input has several functions:
OSD I nsertion Control, R GB Outp ut Blankin g or
Half Contrast Control.
3.4.3 Half-Contrast C ontrol
A 6 dB gain redu ct io n wil l be appl ie d t o the in t erna l
YUV signals when the half-contrast function is
turned ON, and t h e vo lt age of the half-cont ra s t input exceeds the threshold (0.7 V Typ.).
The Half Contrast input is combined with the
FBOSD i nput.
3.4.4 YUV to RGB Matrix
The PAL/SE CA M matr i x is pro vi de d an d a spe cif ic
NTSC matrix is used when demodulation angles
are (0°,104°).
3.4.5 Automatic Cut-off Current Loop
The Cut- off Lo op range is 2 V (the cut-o ff l evel of
the RGB outputs is between 1.5 V and 3.5 V,
2.5 V Typ.). The cut-off current is measured sequentially during the three lines after the internal
frame blanking s ignal (t he b lu e cathod e c urrent i s
measured first, then the green and red). The Leakage cathode current is measured during frame
blanking and is memorized on an internal capacitor. The Cut-off loop can be frozen via the bus. To
prevent cut-off lines from being visible in 16:9
mode, cut-off pulses are not inserted when the cutoff loop is frozen.
3.4.6 Warm-up Detector
At pow er on, the cut-off loop is not active an d high
DC levels are inserted during "cut-off" lines. The
Cut-off loop will be active when the cathode current reaches the warm-up detection threshold.
This causes the picture to be displayed from a
dark screen. The RGB outputs are blanked until
cut-off current is close to the reference voltage.
The manual cut-off mode can be selected via the
I²C bus. In this mode, the I
tive and cut-off pulses are not inserted. The RGB
input pin is inac-
CATH
black levels are independently controlled by three
I²C bus registers (8-bit resolution). The black level
of each RGB output can be adjusted within a
range of 2.5 V (typ.).
3.4.7 Beam Current Limiter DC Voltage Input
The Beam Current Limiter (BCL) will first decrease
the contrast and then the brightness when the
contrast attenuation reaches -5 dB.
3.4.8 Drive (RGB gain) and DC Adjustment
The red, green, blue channel gain for white point
adjustment takes place via the bus. The red and
23/86
Page 24
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
green DC levels for black point adjustment takes
place vi a the bus.
3.4.9 Bus-controlled Contrast & Saturation
The Contrast Control regulates internal RGB, external RGB and OSD RGB inputs. The maximum
attenuation on internal and ext ernal RGB inputs is
-24 d B and is limited to -12 d B for OSD RGB inputs. The bus-controlled saturation range is 50 dB.
3.4.10 Bus-controlled Brightness & Sharpness
The to t al b r ig ht ne ss range is 60 % of the bla c k- t owhite amplitude at maximum contrast. The brightness control regulates all RGB sources (internal,
external and OSD). Bus-controlled Sharpness
(peaking) is provided in PAL/SECAM/NTSC
standards.
3.4.11 Bus-controlled Coring on Sharpness
When the Coring-on-sharpness function is
switched ON, the peaking function is not active on
low amplitude signals (below 10 IRE).
3.4.12 Black St retch
The Blac k Stretc h circuit ca n be disab led via the
bus. Two modes are provided, one to be used
when th e vide o sign al is tra nsm itt ed wi th a set- up
(7.5IRE set-up in NTSC), the other to be used
when the video signal is transmitted without a setup (PAL/SECAM).
3.4.13 Bus-controlled Blue Screen
The bus -c on t ro lle d Blue Scr ee n feature is us ed to
insert a blue backg round on the scree n when no
video is available. The RGB OSD can be displayed when the b lue screen is active.
3.4.14 White Insertion
This function is used to force a full white screen at
RGB output via the I²C bus or during Soft mode at
Powerdown.
3.4.15 Automatic RGB Peak Regulation (APR)
The APR function is used to take advantage of the
total RGB output range. APR c ircuits det ect the
peak level of the RGB outputs (before OSD insertion) and regulate the RGB gain (contrast) so that
signa ls above the A PR thr eshol d are lim ited . For
example, at maximum drive and contrast levels
with the APR function switched OFF, the 100 IRE
input s ignal gives 3 V(B/ W) to the R GB outputs.
With APR ON and the APR threshold at 70 IRE,
the 70 IR E input signal giv es 3 V ( B/W) at R GB
output s. For in put si gnal s ab ove 70 IRE, the AP R
will decr ease the RGB gain so that ampl itude at
the RGB output is always 3 V (B/W). The APR
gain c ontrol v oltage i s memo rized on an ext ernal
capaci tor where the gain decrease is very fast a nd
the gain increase is very slow (several frames).
The APR function can be enabled or disabled via
the I²C bus.
APR ON w he n reg is t er 10 hex d0 = 1 an d r eg is ter
07 hex d6 = 0.
3.4.16 RGB Peak Li mitation
The APR function can be switched into an RGB
Peak Limitation function via the I²C bus: register
07 hex, d ata d6 = 1 and register 10 hex d0 = 1.
For this purpose, the APR threshold, tracked with
the contrast for the APR function, is changed in a
fixed threshold that is independent of the contrast.
In this case, the APR threshold I²C control should
be set to its maximum value.
3.5 CHROMA CIRCUIT
3.5.1 PAL/SECAM/NTSC Decoders
SVHS Chroma input; bus-controlled SVHS mode.
– 30 dB Automatic Color Control (ACC) range.
The ACC func tion is an au toma tic gain co ntrol of
the color amplifier.
– Integrat ed chr om a b as e band de la y l i ne an d ON /
OFF bus control.
– Automatic standard identification, with possibility
of forcing the standard via the bus.
– 3-crystal application capability for the South
American market:
The first crystal on Pin XTAL1 (3.5X MHz only),
the second crystal on Pin XTAL2 (3.5X MHz on-
ly), and the third crystal on Pin XTAL3/BTUN
(3.5XMHz only , us ed f or P A L/N TSC appl i cat i on
only).
3.5.2 PAL/NTSC Decoder
ACC carried out by peak detector on synchronous
demodulation of the burst.
Fully-integrated killer function.
VCO usi ng two stan dard crysta ls: 4.43 MHz a nd
3.58 MHz. One crystal is internally selected depending on the standard selection. A third crystal
can be used in PAL/NTSC appl ications only.
VCO refe rence signal is ava ilable on Pin X1.
– 4.433619 MHz Crystal specification.
Mode of operation: serial resonance (without
load capacity),
Motional capacit ance: C
Shunt capacitance: C
Serial resistance: R
P
< 70W.
S
M
< 7pF,
= 13fF ±3fF,
– 3.579545 MHz Crystal specification (NTSC M).
Mode of operation: serial resonance (without
load capacity),
Motional capacit ance: C
= 11fF ±3fF,
M
24/86
Page 25
STV224XH/228XH/223XH - FUNCTIONAL DESCRIPTION
Shunt capacitance: CP < 7 p F,
Serial resistance: R
< 70 W.
S
– 3.575611 MHz XTAL sp ecification (PAL M).
Mode of operation: serial resonance (witho ut
load capacity),
Motional capacitance: C
Shunt capacitance: C
Serial resistance: R
P
< 70W.
S
< 7pF,
= 12fF ±2fF,
M
– 3.582056 MHz XTAL specification (PA L N).
Mode of operation: serial resonance (witho ut
load capacity),
Motional capacitance: C
Shunt capacitance: C
Serial resistance: R
P
< 70W.
S
= 12fF ±2fF,
M
< 7pF,
0° and ± 90° demodulation angles for PAL.
Bus- control led de modul ation an gles (0, 90) or (0,
104) are availa ble in NTSC mode.
Bus-controlled Hue adjustment is available in
NTSC mode.
3.5.2.1 NTSC Automatic Flesh Control
Two automatic flesh control characteristics are
available via the bus.The normal flesh control w ith
±10° correction and a total action range of ±60°
and the w i de fle sh c on tro l w it h ±20 ° corr ect io n a nd
a total action range of ±90°.
3.5.3 SECAM Decoder
The following functions are fully-integrated: Killer,
PLL demodulator and De-emph asis functions.
3.5.4 Chroma Standard Identif ication
R-Y and B-Y outputs are blanked during Color
Search mode. The color is displayed only when
the chroma standard has been identif ied.
3.5.4.1 Sequential Identification
Three identifi c ati on seque nc es:
– XTAL1 (4.43 MHz) mode to identify either PAL or
NTSC.
– XTAL2 (3.58 MHz) mode to identify either PAL or
NTSC.
– SECAM mode (XTAL1 selection).
In 3-cr yst al app lica tions , the SECA M se quen ce is
replaced by XTAL3 selection to identify either PAL
or NTSC signals.
3.5.4.2 SECAM Identification
SECAM mode is locked after two identified SECAM se qu en ces.
SECAM mode can be selected in 50 Hz mode on ly. PAL/NTSC has priority over SECA M standard.
25/86
Page 26
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4 ELECTRICAL CHARACTERISTICS
4.1 ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
_8V
8 V Supply V oltage 10 V
CC
_5V
V
T
4.2 THERMAL DATA
Refer to Section 10 for more information about TQFP64 cooling.
Symbol Parameter
4.3 SUPPLY
(Supplies at Typical Values, T
mode, unless otherwise specified).
Symbol Parameter Test Conditions Min. Typ. Max. Unit
5 V Supply V oltage 7 V
CC
V
Capacitor 100 pF discharged via 1.5 kW serial resistance (Human Body Model)
ESD
Operating Temperature 0, +70 °C
OPER
T
Storage Temperature -55, +150 °C
STG
R
Junction-ambient Thermal Resistance at ambient 25°C SDIP56 40 °C/W
thJA
R
Junction-ambient Thermal Resistance at ambient 25°C TQFP64 50 °C/W
thJA
R
Junction-case Thermal Resistan ce at ambient 25°C TQFP64 1 0 °C/W
thJC
= 25° C, I²C bus register at power-on reset value, automatic cut-off
amb
IF Circuit Supply Voltage 4.75 5 5.25 V
V
CCIF
Bus & Digital Supply Voltage 4.75 5 5.25 V
V
CCD
Chroma, Scanning Supply Voltage 7.6 8 8.4 V
V
CC1
Video Supply Voltage 7.6 8 8.4 V
V
CC2
I
CCIFVCCIF
I
CC5FVCC5F
I
CCI
I
CC2VCC2
P
D
Current Consumption V
Current Consumption V
V
Current Consumption V
CCI
Current Consumption V
Total Power Dissipation
= 5 V. No-load at RGB outputs. 58 mA
CCIF
= 5 V. No-load at RGB outputs. 48 mA
CCD
= 8 V. No-load at RGB outputs. 40 mA
CCI
= 8 V. No-load at RGB outputs. 56 mA
CC2
V
= V
CC2
= 8 V,
= 5 V
CCI
V
CCIF = VCC5V
No-load at RGB outputs.
±2
Typical
Value
1300 mW
kV
Unit
26/86
Page 27
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4 IF SECTION
Tamb = 2 5° C, V
peak whi te lev el for positiv e modulati on ) .
CCIF
= 5 V , V
Video mo du lation DSB, D = 90% and f
Video Bandwidth = 5 MHz, AF = 1 kHz, Audio Bandwidth = 20 kHz, FMdev = ±27 kHz.
Volume Attenuation = 0 dB, AM carrier input: 10 mV
4.4.1 PIF Amplifier
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VINPIF Input Sensitivity -1dB at Video Output (INTCVBSOUT) 75 85 95 µV
RINPIF Differential Input Resistance PIF Inputs. 1.5 2 2.5 kW
CINPIF Differential Input Capacitance PIF Inputs. 1.5 2 2.5 pF
GR Gain Control Range 65 dB
VMax. Maximum Input Signal +1dB at Video Output (INTCVBSOUT) 0.12 0.15 V
4.4.2 PIFAGC Negative Modulation
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Charging Current at AGCPIFCAP Pin 450 675 900 µA
I
C
Discharging Current at AGCPIFCAP
I
D
Pin
Charging/Discharging Current Ratio 41 45 49
I
C/ID
4.4.3 PIFAGC Positive Modulat ion
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Charging Current at AGCPIFCAP Pin 1.75 2.5 3.25 mA
I
C
Discharging Current at AGCPIFCAP
I
D
Pin
Additional Charging Current at
I
CP
AGCPIFCAP Pin
THICP
THIDP
Threshold for additional charging current
Additional Discharging Current 20 30 40 µA
I
DP
Threshold for additional discharging
current
4.4.4 Tuner AGC
Symbol Parameter Test Conditions Min. Typ. Max. Unit
IAGCT Maximum Sinked Current 1.5 2 2.5 mA
SAGCT Tuner AGC Slope (current)
I
AGCP
AGCST
STT
Maximum Tuner plus Sinked Current (See Note 1) 40 mA
Tuner AGC Starting Point (IF input
related signal)
Variation of take over point with tem-
perature
= 8V, IF input =10 mV
CC2
= 33.4 MHz in B/G, D = 95% in L, fPC= 38.9 MHz.
SC
(at sy nc level fo r n eg ative mo du la t io n, or at
RMS
, 54% modulated unless otherwise specified.
RMS
L mode in case of missing VITS
pulses and no white in Video content
Referred to nominal black level
at INTCVBSOUT Pin
2.3 V
PP
Referred to nominal black level
at INTCVBSOUT Pin
2.3V
PP
Reg 03 (D7, D6) 00
01
10
11
Reg 03 (D5 to D0 = 10 0000)
Reg 03 (D5 to D0 = 00 0000)
Reg 03 (D5 to D0 = 11 1111)
10 15 20 µA
0.15 0.25 0.35 µA
2.8 4 5.2 µA
160 mV
-345 mV
50
95
170
270
12
2
mV
80
0.03 0.07 dB/K
RMS
RMS
µA/dB
RMS
27/86
Page 28
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Note 1: Additional sinked current for large increasing steps of input signal when:
- Voltage at PIFinput > Tuner AGC starting point adjustment given by the WR03(d5 to d0)
- Output Signal (IntCVBSout) saturated (VIntCBVSoutVwth) in positive modulation.
4.4.5 Synchro nou s Vide o D emodu la t or
Symbol Parameter Test Conditions Min. Typ. Max. Unit
DFPC Vision Carrier Capture Range ±2 MHz
V
f
VCO
ILOCK
Maximum VCO Frequency for PIF
regeneration
PIF Inpu t Sig nal for PIF PLL lo ckin g 40 70 µV
With external LC network at 50 MHz
(see Note 2)
50 MHz
TVCO PIFVCO Temperature Coefficient ±20 ppm/K
Note 2: This parameter is not tested during production, it is tested during the qualification phase.
4.4.6 Demodulated Video Output (INTCVBSOUT Pin)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
PIFOUT-Q
PIFOUT-I
Video Amplitude at INTCVBSOUT
Pin
BG/L BG to L Ratio
DG Differential Gain 3 5 %
DP Differential Phase 3 5 deg
Residual Carrier Signal 1 10 mV
Residual 2nd Harmonic 1 10 mV
V
V
PIF
R2IF
S/N Video Output S/N Ratio See Note 3 55 60 dB
V
V
V
WTH
V
WIL
BTH
BIL
White Noise Threshold Voltage
White Noise Insertion Level
Black Noise Threshold Voltage
Black Noise Insertion Level
BW Video Bandwidth 6 8 10 MHz
LUMLIN Luminance Non Linearity 5 %
ROUT Internal Output Resistance 50 W
RLOAD Output Load Resistance
IVID Video Output Source Current
DCOUT DC Output Level Top Sync Level 2 V
Inter Mod. 1.07 MHz Intermodulation Intercarrier Mode 52 dB
PSRR Power Supply Ripple Rejection
Suppression of Video signals har-
NH
monics
Note 3: S/N = 20 log [PIFOUT Black to White / V
Note 4: Supply Voltage ripple rejection = 20log (V
plied to V
CC IF
= 5 V.
Black-to-White Video amplitude:
reg 02 data = 10h
(INTCVBSOUT =2 V
reg 02 data = 90h
(INTCVBSOUT =2.3 V
)
PP
PP
Video amplitude bus register
Typ.: reg 02 data = 10 hex
reg 02 data = 90h
2.3 V
at INTCVBSOUT Pin
PP
reg 02 data = 90h
at INTCVBSOUT Pin
2.3 V
PP
reg 02 data = 90h
at INTCVBSOUT Pin
2.3 V
PP
reg 02 data = 90h
at INTCVBSOUT Pin
2.3 V
PP
reg 02 data = 10hex
(INTCVBOUT = 2 V
)
PP
reg 02 data = 90hex
(INTCVBSOUT = 2.3 V
PP
Video signal Grey level (see Note 4)
BG standard
L standard
(mV
NOISE
SUPPLY/VOUTPUT
) weighted CCIR 567.
RMS
) measured at 100 Hz with VAC Max. = 100 mVpp ap-
1.19
1.36
)
23 kW
71013 mA
)
35
30
35 40 dB
1.4
1.61
1.6
1.84
58 %
6.7 V
3.7 V
1V
2.6 V
RMS
V
RMS
RMS
dB
28/86
Page 29
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4.7 SIF Amplifier
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VINSIF SIF Input Sensitivity
GRSIF Gain Control Range - 3dB to +1dB at AM/FMOUT Pin 60 dB
C
R
Note 5: L standard Sc/Pc = -10 dB, Nyquist Pc = - 6 dB, SIF input -4 dB with PIF input = 84 µV, BG stan dar d Sc/Pc = -
Differential Input Capacitance SIF Inputs (see Note 6) 1.5 2 2.5 pF
INSIF
Differential Input Resistance SIF Inputs 1.5 2 2.5 kW
INSIF
13 dB, Nyquist Pc = -6 dB, SIF input -7 dB with PIF input = 85 µV.
Note 6: This parameter is not tested during production. It is tested on the validation bench during the qualification phase.
4.4.8 SIF AGC (FM)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Charging Current 2.4 mA
I
C
Discharging Current 100 µA
I
D
4.4.9 SIF AGC (AM)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
NORMAL
I
Charging/Discharging Current Normal time constant ±6 µA
Charging/Discharging Current Fast time constant ±2.4 mA
FAST
4.4.10 FM Demodulator
Electrical pa rameter valid in both QSS and Intercarrier modes, unles s otherwise specified.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
SIFMin
VOAF
DFMX
_norm
DFMX
_w_qss
Min. Broadcast Sound/Video Carrier Ratio
FM Audio Output Amplitude at AM/
FMOUT Pin
Maximum FM Deviation
Maximum FM Deviation
THD_FM Total Harmonic Distortion FM dev = ±27 kHz BGDKI 0.3 1 %
S/N Audio S/N
AMR Amplitude Modulation Rejection m = 30%, AF = 1 kHz 32 dB
SVR Supply Voltage Rejection See Note 4 45 dB
S/N
vsvideo
S/N versus picture content, Intercarrier mode
4.4.11 De-emphasis
Symbol Parameter Test Conditions Min. Typ. Max. Unit
deemp-T1 De-emphasis Time Constant B,G,D,K,I standards 50 µs
deemp-T2 De-emphasis Time Constant M, N, standards 75 µs
- 3dB at AM/FMOUT Pin (see Note 5)
AM output amplitude,
FM subcarrier amplitude
Intercarrier mode: SAW filter K2955M
at SNR 35 dB
FM dev = ±27kHz BGDKI
FM dev = ±13.5 kHz MN
THD < 10%, normal audio mode,
AF = 1 kHz
QSS mode, Audio FM Wide mode
(reg 04h, d3d2 = 11),
AF = 1 kHz
Weighted according to CCIR468-4
Quasi-Peak
Intercarrier mode: SAW filter K2955M
Black picture,
White picture,
250 kHz squarewave
55
µV
40
-30 dB
400 500 630 mV
200 kHz
400 kHz
55 dB
52
50
52
RMS
RMS
dB
29/86
Page 30
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.4.12 AM Demodulator
Symbol Parameter Test Conditions Min. Typ. Max. Unit
AFOUT
AMlowco Low Cut-off Frequency -3 dB compared AFout 40 Hz
AMhighco High Cut-off Frequency -3 dB compared AFout 30 kHz
AMthd Total Harmonic Distortion 54% modulation 2 %
AMs/n Signal/Noise Ratio
AMsvr Supply Voltage Rejection See Note 4 20 dB
4.4.13 SIF Output (AM/FM or Sound Subcarriers Output)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
SIFout Output Level Sound subcarriers 150 mV
SIFbw Bandwidth Sound subcarriers 7.5 MHz
SIF dcout DC Output Level 4 V
SIFres Residual Carrier
SIFcur Sink Output Current
4.4.14 SAW Filter Switch Output (TQFP64 only)
Symbol Parameter Test Conditions Min. Typ Max. Unit
SAW low Low Output Voltage I
SAWcur Maximum allowed Current 2 mA
SAW high High Output Voltage I
4.4.15 External Audio Input
Symbol Parameter Test Conditions Min. Typ. Max. Unit
4.4.16 Main Audio Output
(See Figure 17 on page 42 and Figure 18 on page 42)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
ASTEP Step Resolution reg 05, d7 = 0 0.7 dB
AFDIFF
THD_AM Total Harmonic Distortion
AM Audio Output Amplitude at AM/
FMOUT Pin
Input Resistance 70 100 130 kW
R
IN
DC Input Voltage 2.4 V
V
IDC
54% modulation 400 500 630 mV
Weighted according to CCIR468-4
Quasi-Peak
Fundamental wave (38.9 MHz) and
harmonics
AM or FM demod. output selected
Sound subcarriers output selected
= 2 mA 0.4 V
SINK
= 2 mA 4 V
SOURCE
55 dB
0.4 mV
0.5
1.5
AFIN maximum Audio Input Signal 2 V
Maximum Attenuation (Audio Out/
AMax
AM-FM Out)
Minimum Attenuation (Audio Out/
AMin
AM-FM Out)
Register 05hex, data = 7Fhex 78 dB
= 1 V
V
IN
Register 05hex, data = 00hex
RMS,
f = 1 kHz,
-101dB
DCSH DC Output Shift From max. volume to min. volume 50 mV
V
DC Output Level 4 V
ODC
Audio Amplitude difference
between sources
R
Output Resistance 110 W
OUT
f = 1 kHz, f
Ext. Audio Input = 500 mV
= ±27 kHz,
M
RMS
2dB
BWO Output Bandwidth 1 MHz
V
IN
= 1 V
RMS,
f = 1 kHz
0.1 0.3 %
RMS
RMS
RMS
mA
RMS
30/86
Page 31
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Signal to Noise Ratio from Exter-
S/N1
nal Input
Signal to Noise Ratio from Exter-
S/N2
nal Input
Signal to Noise Ratio from FM
S/N3
Demod
Supply Voltage Rejection from
SVRV
External Input
XT Crosstalk See Note 7 70 dB
NOISE Output Noise Level
AFIN Audio Input Level Volume = -25 dB, THD < 1% 2
Note 7: Measured from any input to output at f = 10 kHz with RL = 10kW and Rg = 600W, Volume attenuation = 0dB.
4.4.17 AVL
Symbol Parameter Test Conditions Min. Typ. Max. Unit
GAVL
AVL
AVL Gain Control Range
(7-bit Resolution)
Maximum attenuation -15 dB
MAX
Reg.AVL Regulation amplitude
4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS
4.5.1 Luminance & CVBS Inputs
Symbol Parameter Test Conditions Min. Typ. Max. Unit
DC
Black Level Voltage Input selected on main CVBS output 3.3 V
IN1
CVBS or Y Input Voltage 1 1.41 V
V
IN
-I Negative Clamping Current During SYNC pulse 20 27 35 µA
I Positive Clamping Current 2.5 4.5 7 µA
4.5.2 Combined Chrominance & SVHS Selection Input
Symbol Parameter Test Conditions M in. Typ. Max. Unit
V Chrominance Input Voltage Burst Amplitude, 100/75 Color Bar 0.3 0.6
V
Input Amplitude before Clipping 1
CLIP
V
DC Voltage SVHS Mode 1.55 1.70 1.85 V
DC
V
SVHS Threshold Voltage 0.50 0.90 1.45 V
TH
I
Output Current 0V at CHR Pin 150 µA
LOW
4.5.3 CVBS1 Output (Pin 29 - SDIP56)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Dynamic Output Amplitude Register 1Dhex, data = 07hex 1.5 V
V
OUT
R
Output Load Resistance Register 1Dhex, data = 07hex 3 kW
LOAD
BW CVBS Bandwidth
Measured at 0 dB attenuation,
Ext. Audio Input at 500 mV
CCIR 468-4 Weighted Quasi Peak
Measured at 20 dB attenuation,
0 dB reference
Ext. Audio Input at 500 mV
Measured at 20 dB attenuation,
FM: ± 27 kHz (Standards BGDKI)
Measured at f = 100 Hz from
V
= 5 V and V
CC
CCIR 468-4 Weighted Quasi Peak
Volume at minimum
Volume at typical
Volume at maximum
CC
RMS,
RMS
= 8 V
Measured at AUDIOOUT
Volume Control at maximum
Register 1Dhex, data = 07hex
= 1 V
V
IN
PP
75 dB
55 60 dB
52 55 dB
60 dB
50
60
50
60
100
120
V
20 dB
0.55 V
10 MHz
µV
RMS
RMS
PP
V
V
PP
PP
PP
31/86
Page 32
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Crosstalk Deletion of non-selected signals
MGAIN Output Gain
DCMAIN DC Output Voltage
4.5.4 CVBS2 Output
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
R
Dynamic Output Amplitude 3
OUT2
Internal Output Resistance 10 W
OUT2
BW2 CVBS Bandwidth
Crosstalk2 Deletion of non-selected signals Up to 5 MHz 50 dB
SWI2gain Output Gain From any CVBS/Y inputs 5.5 6 6.5 dB
SWI2DC DC Output Voltage Black Level 3.8 V
R
Output Load Resistance 1.5 kW
LOAD2
4.5.5 OSD RGB Inputs
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Clamp Level Max. Contrast 4 V
CLAMP
RGB Input Voltage 0.7 1 V
V
RGB
CRGB RGB Gain Max. Contrast, Max. Drive 4.28 -
Difference of black level of internal
Dblack
and external signals at the RGB outputs
Clamping Current 60 100 140 µA
I
RGB
Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz 50 dB
4.5.6 FBOSD/HC Inputs
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
V
V
V
OSD Insertion Threshold Voltage
THFB1A
OSD Insertion Threshold Voltage
THFB1B
Half Contrast Threshold Voltage
TH-HC
Blanking Threshold Voltage,
THFB2
t
Insertion Switching Delay 20 40 ns
SWI1
t
Blanking Switching Delay
SWI2
I
Input current 0V at Pin FBOSD 10 µA
FB
Register 1Dhex, data = 07hex
Up to 5 MHz
Register 1Dhex, data = 07hex
From any CVBS/Y inputs
Register 1Dhex, data = 07hex
Black Level
V
IN = 1VPP
50 dB
-0.5 0 0.5 dB
4.2 V
10 MHz
OSD signal versus internal signal 50 mV
Half Contrast disable
Register 08hex d6 = 0
Half Contrast enable
Register 08hex d6 = 1
Half Contrast enable
Register 08hex d6 = 1
Oversize Blanking active
Register 08hex, d7 = 1
From FBOSD = 4V to starting of
blanking falling edge at RGB outputs
0.5 0.7 0.85 V
1.5 1.9 2.3 V
0.5 0.7 0.85 V
3.244.8V
100 ns
V
PP
PP
32/86
Page 33
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.5.7 External RGB/YCrCb Inputs
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
V
Dblack
Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz 50 dB
4.5.8 External Fast Blan king Input
(See Note 8)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Note 8: The FBEXT input must be connected to ground if not used in the application.
4.6 LUMA PART
4.6.1 Y
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Groupdel Group Delay up to 3.5MHz Trap-off ±30 ns
4.6.2 Peaking Circuit
Electrical parameter measured with color identified
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Overshoot
Clamp Level Max. Contrast 3.5 V
CLAMP
RGB Input Voltage 0.7 1 V
V
RGB
100% color bar
register 0Ahex d7d6 = 11
YCrCb Input Voltage
YCrCb
Cb
Y
Cr
1
0.7
0.7
CRGB RGB Gain Max. Contrast, Max. Drive 4.28 -
Difference of black level of internal
and external signals at the RGB out-
OSD signal versus internal signal 50 mV
puts
Clamping Current 60 100 140 µA
I
RGB
Insertion Threshold Voltage 0.5 0.7 0.85 V
V
THFB
Insertion Switching Delay 20 40 ns
t
SWI
Input Current 0V at Pin FBEXT 10 µA
I
FB
Max. voltage allowed at FBEXT input 5 V
V
MAX
Delay Line
Delay Time PAL/NTSC SVHS mode, Register 1F d3 = 0 520 ns
t
D1
Delay Time SECAM SVHS m ode, Register 1F d3 = 0 640 ns
t
D2
Delay Time PAL/NTSC CVBS mode, Register 1F d3 = 0 560 ns
t
D3
Delay Time SECAM CVBS m ode, Register 1F d3 = 0 710 ns
t
D4
lumDel1 = reg 1F d3 = 0, standard
Delay Time (lumDel1 - lumDel2)
t
SHIFT
luma delay
lumDel2 = reg 1F d3 = 1, shifted luma
140 ns
delay
fPEAK Center Frequency Trap-off, coring ON 2.5 3 3.5 MHz
G
Gain Variation from Min. to Max.
PEAK
peaking
Amplitude Variation compared to
B/W amplitude
, coring ON 9 dB
At f
PEAK
2T pulse, Max. peaking, coring ON 55 %
PP
V
PP
33/86
Page 34
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Pre-shoot
Aft-shoot
Coring Coring Range compared to B/W Coring ON 10 %
4.6.3 Black Stretch Control (Pin BS)
See Figure 12
Symbol Parameter Test Conditions Min. Typ. Max. Unit
BSth1
BSMax.
BSVMax. Black Stretch Control Voltage Max. black stretch 2.6 V
BSVMin. Black Stretch Control Voltage No black stretch 3.3 V
I100IRE Discharging current Y = 100IRE 8 µA
I0IRE Charging Current Y = 0IRE 35 µA
4.6.4 Y Output
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Yout-D C Black level 3.7 VBW
Yout-amp Black to White Amplitude 0.7 0.99 V
Yout-BW Luma Path Bandwidth
Yout S/N Signal to Noise Ratio (V
Amplitude Variation compared to
B/W amplitude
Amplitude Variation compared to
B/W amplitude
Black Stretch Threshold referred to
B/W amplitude
Maximum expansion referred to
B/W amplitude
PP/VRMS
2T pulse, Max. peaking, coring ON 40 %
2T pulse, Max. peaking, coring ON 40 %
Y/CVBS inputs: 0.7V B/W, No set-up 50 %
Y/CVBS inputs: 0.7V B/W, No set-up -15 %
Peaking nominal
SVHS mode/Trap-off
CVBS, PAL/NTSC 4.43MHz
CVBS, SECAM
CVBS, PAL/NTSC 3.58MHz
Bandwidth 5MHz,
)
Peaking Min.,coring ON
8
2.7
3.5
2.5
3.1
2.5
3.0
50 dB
MHz
4.7 FILTERS
4.7.1 Y Trap Filter
Symbol Parameter Test Conditions Min. Typ. Max. Unit
f
TRAP-PN
f
TRAP-S
f
TRAP-ACC
Q
Notch Frequency PAL/NTSC f
Notch Frequencies
SECAM fnb
SECAM fnr
Notch Frequency Accuracy 3.5 %
Trap Quality Factor
TRAP
Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking
Min.
OSC
4.2
4.5
1.5 -
CrejPN Color Subcarrier Rejection PAL/NTSC 20 dB
CrejS Color Rejection in SECAM Mode
From 4.1 to 4.6 MHz
At 3.9 MHz 10
20
4.7.2 Chrominance Bandpass
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Center Frequency Register 12h, d3-d0 = 0000 -5% f
f
BP
Bandpass Quality Factor 2.8 3.5 4.2 -
Q
BP
OSC
+5% MHz
MHz
MHz
dB
34/86
Page 35
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.7.3 Bell Filter
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Center Frequency Register 11h, d4-d0 = 00000 4.27 4.29 4.31 MHz
f
BELL
Bell Quality Factor 14 16 18 -
Q
BP
4.8 CHROMA PART
4.8.1 ACC
Symbol Parameter Test Conditions Min. Typ. Max. Unit
ACC Control Range
G
ACC
Minimum Burst Signal Amplitude Within the ACC control range 0.03 V
V
Min.
4.8.2 ACC Overload
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Chroma regulation Threshold ACC overload ON, PAL/NTSC 3 dB
TH
4.8.3 Killer
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Ident-kill Color on Threshold of ident. circuit
Kill-Hyst Color off Killer Hysteresis Strong signal condition, S/N > 40 dB 2
4.8.4 Chroma PLL
Symbol Parameter Test Conditions Min. Typ. Max. Unit
CaptR Catching Range
HoldR Holding Range > or = to capture range
4.8.5 PLL Loop Filter (PAL/NTSC)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
Maximum Control Current
C
I
Leakage Current 5µA
L
Frange-W Auto Flesh Control Register 14(HEX), d6 = 1, d7 = 1 ±90 Deg
4.8.6 Hue Control
Symbol Parameter Test Conditions Min. Typ. Max. Unit
R
Hue Control Range ±35 ±45 ±55 Deg
HUE
4.8.7 Automatic Flesh Control
Symbol Parameter Test Conditions Min. Typ. Max. Unit
FleshNom. Nominal Flesh Tint Phase 118 Deg
Fcorr0
FMax.-N Maximum Phase Correction Register 14(HEX), d6 = 1, d7 = 0 ±10 Deg
Flesh-N
Frange-N Auto Flesh Control Range Register 14(HEX), d6 = 1, d7 = 0 ±60 Deg
Phase Correction when Auto Flesh
ON
Chroma Input Phase at Max. correction
Change of burst overall ACC control
range < 2dB
Burst amplitude on selected CVBS
input
With recommended crystal and recommended CLPF filter value.
Color search mode (colour not ident.)
Color identified
26 dB
5
±300
1000
350
At FleshNom 0 Deg
Register 14(HEX), d6 = 1, d7 = 0 ±30 Deg
mV
mV
PP
PP
PP
µA
35/86
Page 36
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
FMax.-W Maximum Phase Correction Register 14(HEX), d6 = 1, d7 = 1 ±20 Deg
Flesh-W
Frange-W Auto Flesh Control Register 14(HEX), d6 = 1, d7 = 1 ±90 Deg
4.8.8 Color Demodulators
Symbol Parameter Test Conditions Min. Typ. Max. Unit
DoffsetP Demodulator Offset PAL/NTSC mode, 75% color bar ±2 %
DoffsetS Demodulator Offset SECAM mode, 75% color bar ±2 %
PhaseErr Phase Error in demodulated signal PAL/NTSC mode, 90% matrix 5 Deg
TransPal Chroma Transient Time
transSEC Chroma Transient Time
Naxis R-Y Demodulation Axis NTSC mode, 104° matrix 104 Deg
4.8.9 Ch ro m a D ela y Line
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Cdelay Delay of delayed signals Relative to non delayed signal 63.9 64 64.1 µs
Ctrans
Dgain
4.8.10 Chroma Reference Output
Symbol Parameter Test Conditions Min. Typ. Max. Unit
CHR-amp
I
Chroma Input Phase at Max. correction
Difference of transient times between delayed and non delayed
signals
Differential Gain of delayed signals
versus direct signals
Chroma VCO Reference Signal
Amplitude
Sink Current 0.5 mA
SCHR
Register 14(HEX), d6 = 1, d7 = 1 ±45 Deg
PAL mode, 75% color bar greenmagenta transient
SECAM mode, 75% color bar greenmagenta transient
SECAM mode. t
tRN: rise time line N (direct)
: rise time line N +1 (delayed)
t
RN+1
RN
-t
RN+1
700 ns
900 ns
150 ns
SECAM mode. Gn+1/Gn
Gn: direct channel gain
-0.5 0 0.5 dB
Gn+1: delayed channel gain
0.4
V
PP
4.9 SCANNING PART
4.9.1 Sync hronization Separato r
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Synchronization Pulse Amplitude 50 300 450 mV
SYNC
4.9.2 Horizontal Oscillator
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Horizontal Frequency 50 Hz mode 15.6 kHz
f
H50
Horizontal Frequency 60 Hz mode 15.7 kHz
f
H60
f
RANGE
f
FREE
Frequency Control Range
Free Frequency when PLL1 opened 15.3 15.6 15.9 kHz
Low Frequency
High Frequency
14.7
15.9
15.0
16.3
15.3
—
kHz
36/86
Page 37
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.9.3 First Loop Filter
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
Long Time Constant Output Current 0.10 0.13 0.16 mA
LOW
I
I
4.9.4 Second Loop Filter
Symbol Parameter Test Conditions Min. Typ. Max. Unit
CrangeP2
H
H
Note 9: This parameter is not tested during production, it is tested during the qualification phase.
4.9.5 Line Flyback Input/Super-Sandcastle Output
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
BURST
V
V
Twbg Burst key Pulse Width 3.8 µs
Tdbg
Tvert Vertical Pulse Width 10.5 lines
V
THLINE
4.9.6 Horizontal Output
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
V
CCSTARTVCC
V
CCSTOPVCC
I
V
4.9.7 Vertical Output
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
f
LOCK
f
FREE-50
f
FREE-60
Short Time Constant Output Current 0.30 0.40 0.56 mA
HIGH
Very Long Time Constant 0.03 0.05 0.07 mA
VLOW
Control Range from start of horizontal output to flyback pulse
Horizontal Position Control Range 5 5.25 µs
SHIFT
Horizontal Drift with temperature From 0°C to 70°C (see Note 9) 200 ns
DRIFT
Centered horizontal position
0 to
12
Output Voltage during Burst Key 4.8 5.3 5.8 V
Clamped Input Voltage during Line
LINE
Flyback
Output Voltage during Vertical pulse 1.8 2 2.2 V
VERT
Delay of start of burst key to start of
sync.
PLL2 and Line Blanking Threshold
Voltage referred to line level Vline
Vthline/Vline 83 %
2.6 3 3.4 V
5.2 µs
I Input Current 0.1 1 mA
Output Pulse Width 26 28 30 µs
t
W
Low Output Voltage I
LOW
= 5mA 0.4 V
SINK
Start Level 5.5 6 6.5 V
Stop Level Hysteresis V
Maximum allowed Output Current 10 mA
Max.
Maximum allowed Output Voltage 10 V
Max.
Output Pulse Duty Cycle in soft-start
Tss
mode (t
Output Pulse Width 10.5 Lines
t
W
Low Output Voltage
LOW
HIGH
/(t
HIGH+tLOW
)
Reg 19, d0 = 1
Reg 19, d0 = 0
CCSTART
- V
CCSTOP
0.5 0.6 0.7 V
75 %
1.5 2
0.1
2.5
0.5
Looking Range 248 352 Lines
Free Frequency (no Video signal) 50-Hz Forced or 50-Hz Auto mode 314 Lines
Free Frequency (no Video signal) 60-Hz Forced or 60-Hz Auto mode 264 Lines
µs
V
37/86
Page 38
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
I
SOURCE
High Level Range Vertical Position
HIGH
Control
Output Sinking Current 0.7 1.0 mA
I
SINK
Output Source Current 0.7 1.0 mA
4.9.8 Vertical Amplitude Control
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Output Voltage Range
V
AMP
4.9.9 Crystal Detection
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Load resistance at pin VAMP 4.43 MHz crystal on pin XTAL1 80 kW
R
4.43
Load resistance at pin VAMP 3.58 MHz crystal on pin XTAL1 10 kW
R
3.58
4.10 RGB CONTROL PART
4.10.1 Y Input
Symbol Parameter Test Conditions Min. Typ. Max. Unit
YINdc Black Level 3.7 V
Yin-B/W Black to White Amplitude 0.7 1 V
Yin-cur Input Current 1µA
4.10.2 U & V Inputs
Symbol Parameter Test Conditions Min. Typ. Max. Unit
UVin-dc Black Level 3.7 V
Uin-amp B-Y Amplitude 75% color bar PAL/SECAM 1.33 2.0 V
Vin-amp R-Y Amplitude 75% color bar PAL/SECAM 1.05 2.0 V
UVin-cur Input Current 1µA
4.10.3 Contrast Control
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Yctr Contrast Range on Y signal 21 24 27 dB
OSDctr
Contrast Range on OSD RGB signal
4.10.4 Saturation Control
Symbol Parameter Test Conditions Min. Typ. Max. Unit
SAT
SAT
Maximum Saturation Control
Max.
Minimum Saturation Control
Min.
Min. position control
Max. position control
Min. amplitude voltage
Max. amplitude voltage
75% color bar PAL/SECAM,
0 dB for data 20 in reg 08
75% color bar PAL/SECAM,
0 dB for data 20 in reg 08
3.5
6.046.5
1.2
5.5
1.5
6.0
4.5
7.0
1.7
6.5
V
V
PP
PP
10 12 14 dB
6912dB
-40 dB
38/86
Page 39
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.10.5 Brightness Control
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Bright
Blacknom
4.10.6 RGB Matrix
Symbol Parameter Test Conditions Min. Typ. Max. Unit
R/Bntsc (R-Y)/(B-Y)
G/Rntsc (G-Y)/(R-Y) NTSC mode, 104° matrix -0.29 -
G/Bntsc (G-Y)/(B-Y) NTSC mode, 104° matrix -0.22 -
4.10.7 Drive Adjustment (White Point Adjustment)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
WPrange White Point Adjustment Range On RGB outputs 6 dB
4.10.8 Cut-Off Adjustment (Black Point Adjustment)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
COadjust Cut-off Adjustment Range
COloop Cut-off Loop Range On RGB outputs 2 2.5 V
COlevel Inserted Cut-off Level 1.5 2.5 3.5 V
Brightness Control Range referred
to B/W amplitude on RGB outputs
Nominal Black Level at RGB outputs. Difference between black level V
level V
and inserted cut-off pulse
BLACK
: V
CO
BLACK
G/R (G-Y)/(R-Y)
G/B (G-Y)/(B-Y)
- V
At Max. Contrast, APR OFF 50 60 70 %
BS mode, Max. Contrast.
- VCO)/V_BW
(V
BLACK
V_BW: black to white amplitude at
CO
RGB outputs.
PAL/SECAM matrix measured on R,
G outputs PAL DEMpattern
PAL/SECAM matrix measured on G,
B outputs PAL DEMpattern
NTSC mode, 104° matrix input signal:
U = V measured on R, B outputs
On Red and green outputs at Typ.
drive, no load
-12 %
-0.40 -0.51 -0.62 -
-0.15 -0.19 -0.23 -
0.9 -
420 mV
4.10.9 Cathode Current Input
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Leakage Current Reference Volt-
LEAK
age
3.75 4 V
Cut-off Current Reference Voltage
V
COFF
V
SBEAM
I
SOURCE
referred to leakage current reference V
LEAK
Start Beam Current Detection Reference Voltage
Source Current 150 µA
210 250 290 mV
4.1 4.3 V
4.10.10 Beam Current Limiter Input
See Figure 14 on page 42 and Figure 15 on page 42.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Contrast Attenuation Starting 5.75 V
V
TH1
Brightness Attenuation Starting 5.5 V
V
TH2
Contrast Attenuation Ending 5.25 V
V
TH3
CTRbcl Contrast Attenuation at V
Brightness Attenuation Ending 4.5 V
V
TH4
39/86
TH3
14 dB
Page 40
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
BRIGbcl Brightness Attenuation at V
TH4
Clp High Clamping Voltage 6.5 V
SAF-thr Safety Threshold 0.8 1 1.2 V
SAF-hold Supply Hold Voltage Referred to V
CC1
4.10.11 Automatic RGB Peak Regulation (APR) / RGB Peak Limitation
See Figure 16 on page 42.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
WR10 d0 = 1
APR/RGB
i
i
G
G
Note 10: At maximum c ontras t, APR and RGB peak limita tion have the same char acteri stic s. The APR regul ation lev el
Maximum Output Level on RGB
outputs when APR/RGB Peak Limi-
Peak
tation ON
Discharging Current 5.5 µA
APR-D
Charging Current 5.25 mA
APR-C
APR max gain
APRMAX
APR min gain
APRMIN
is tracked on contrast. The RGB peak limitation level is not tracked on contrast.
Contrast Max., drive Max., no load
APR threshold Min. (50IRE)
APR threshold 70IRE
APR threshold Max. (100IRE) (see
Note 10)
APR ON = WR10 d0 = 1
RGB output amplitude with APR ON
versus RGB output amplitude with
APR OFF
APR ON = WR10 d0 = 1
RGB output amplitude with APR ON
versus RGB output amplitude with
APR OFF
100 %
3V
2.14
3.0
V
4.28
+2.5 dB
-3.0 dB
40/86
Page 41
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.10.1 2 R GB O ut pu t s
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VB/W Output Signal Amplitude B/W
V
I
SOURCE
V
Output Signal Amplitude
BLUE
I
Output Sinking Current 1.2 1.5 mA
SINK
Output Source Current 1.8 mA
Internal Output Resistance 150 W
R
OUT
Blanking Level No load 0.2 0.4 V
BLANK
High Clipping Level No load 6.8 V
V
CLIP
Black-ctr Variation of black level with contrast 30 mV
Black-sat
Rel-Black
Variation of black level with saturation
Relative Variation in black level between the three channels
Black-T Black Level Thermal Drift 1 mV/°C
Tracking between Luminance and
Track
Chrominance signals
Bwidth Bandwidth of output signals at -3dB
0.7V B/W on Y/CVBS inputs, Contrast
Max., Drive Max., Saturation and
bright Nom., APR OFF, no load
75/100 color bar, no Y nom. settings,
APR OFF, no load
20dB contrast variation
Overall brightness range
±5% V
CC1
At typical saturation
From Max. Contrast (0 dB) to -10 dB
Contrast
YUV inputs to RGB outputs
OSD RGB inputs to RGB outputs
EXT. RGB inputs to RGB outputs
Figure 13. Auto Flesh Characteristics
2.8 V
1.5 V
6
8
6
8
5
6
50 mV
20 mV
2dB
PP
MHz
Figure 12. Black Stretch Static Characteristics
(IRE)
(%)
Y
OUT
100
50
0
(%)
Y
IN
41/86
-15
50 100
Phase Correction (Deg)
20
10
0
Narrow
Response
-10
-20
0 90 210 24060 15030 120
Wide Response
Chroma Input
Phase (Deg)
180
Page 42
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
Figure 14. Beam Current Limiter
Characteristics (Contrast)
Contrast (d B)
0
-6
-12
-18
-24
4.5 5 5.5 6 6.5
0dB Max.
-6dB
-10dB
-18dB
V
BCL
(V)
Figure 15. Beam Current Limiter
Characteristi cs (Brightness)
Brightness (%)
100
50
0
4.5 5 5.5 6 6.5
Figure 16. Automatic RGB Peak Regulation (APR) / RGB Peak Limitation Characteristics
Output Level
RGB Peak Limitation Curve or
APR Threshold max. (100 IRE)
and contrast max.
APR Threshold min. (50 IRE)
and contrast max.
APR Threshold max. (100 IRE)
and contrast min.
APR Threshold min. (50 IRE)
and contrast min.
Input Level (IRE)
0 50 100 150
V
BCL
(V)
Figure 17. Linear Volume Control Curve
(7 bit s, reg. 05 d6-d0, reg. 05 d7 = 0)
0
-2
0
-
40
-
60
Volume Control Attenuation (dB)
-8
0
0 15050 10
o
de (decimal
C
0
)
Figure 18. Non-Linear Volume Control Curve
(6 bits, reg. 05 d6-d1, reg. 05 d7 = 1)
0
-20
-40
-60
Volume Control Attenuation (dB)
-80
010 7
30 5020 4060
Code (decimal)
0
42/86
Page 43
STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.11 I²C BUS CHARACTERISTICS
4.11.1 SCL
Symbol Parameter Test Conditions Min. Typ. Max. Unit
4.11.2 SDA
Symbol Parameter Test Conditions Min. Typ. Max. Unit
4.11.3 I²C Timing
Symbol Parameter Test Conditions Min. Typ. Max. Unit
t
SU,DAT
t
HD,DAT
t
SU,STO
t
HD,STA
t
Figure 19. I²C Bus Timing
Low Level Input Voltage -0.5 1.5 V
V
IL
High Level Input Voltage 3 VCC+0.5 V
V
IH
Input Leakage Current V
I
LI
Clock Frequency 0 100 kHz
f
SCL
Input Rise Time 1.5V to 3V 1.000 ns
t
R
Input Fall Time 1.5V to 3V 300 ns
t
F
Input Capacitance 10 pF
C
I
Low Level input Voltage -0.5 1.5 V
V
IL
High Level input Voltage 3 VCC+0.5 V
V
IH
Input Leakage Current V
I
LI
Input Capacitance 10 pF
C
I
Input Rise Time 1.5V to 3V 1.000 ns
t
R
Input Fall Time 1.5V to 3V 300 ns
t
F
Low Level Output Voltage I
V
OL
Output Fall Time 3V to 1.5V 250 ns
t
F
Load Capacitance 400 pF
C
L
Input Capacitance 10 pF
C
I
Clock Low period 4.7 µs
t
LOW
Clock High period 4 µs
t
HIGH
= 0 to V
IN
IN
OL
CC
= 0 to V
CC
= 3mA 0.4 V
-10 10 µ A
-10 10 µ A
Data Set-up Time 250 ns
Data Hold Time 0 340 ns
Set-up Time from Clock High to
Stop
Start Set-up Time following a Stop 4.7 µs
t
BUF
4µs
Start Hold Time 4 µs
Start Set-up Time following Clock
SU,STA
Low to High Transition
4.7 µs
43/86
SDA
SCL
SDA
t
BUF
t
HD,STA
t
LOW
t
R
t
SU,STA
t
HD,DAT
t
HIGH
t
SU,DAT
t
F
t
SU,STO
Page 44
STV224XH/228XH/223XH - I²C BUS SPECIFICATIONS
5 I²C BUS SPECIFICATIONS
Data tra nsfe rs follow the us ual I² C for mat: after the s tart condi tion (S), a 7-bit slav e addr ess is sent, followed by an eighth bi t whic h is a dat a direct ion bit (W). A n 8-bit sub-ad dres s is sent to select a regist er, fo llowed by an 8-bit data word to be included in the register.
The IC’s I²C bus decoder permits the automatic incrementation mode in write mode.
The circuit operates up to clock frequencies of 400 kHz.
String Format
Write only mode (S = start condition, P = stop condition, A = acknowledge)
S SLAVE ADDRESS 0 A SUB-ADDRESS A DATA A P
Read only mode
S SLA VE ADDRESS 1 A DATA 0 A DATA 1 A DATA 2 A DATA 3 A P
Slave Address
Address A7 A6 A5 A4 A3 A2 A1 A0
Value 1000101X
Write Address: 10001010
Read Address: 10001011
44/86
Page 45
STV224XH/228XH/223XH - I²C BUS SELECTION
6 I²C BUS SELECTION
6.1 SUMMARY INPUT SIGNALS (WRITE MODE)
“Not-to-be-used” data must be set to “0”.
Reg.
Addr.
(Hex)
Data D7 Data D6 Data D5 Data D4 Data D3 Data D2 Data D1 Data D0
00 PIFVCO Free Running Fine Adjustment
01
02
03 Tuner AGC gain Tuner AGC Starting Point Adjustment
04
05
06
07 Blue Screen
08
09 CO Blanking
0A
0B
0C
0D Manual Cut-off Selection Red Cut-off Adjustment
0E
0F
10
PIF
Over-modu-
lation
CVBS Out-
put
Intercarrier
Filter ON/
OFF
Volume
Control
Curve
Not to be
used
Oversize
Blanking
RGBext/YCrCb Insertion
NTSC Set-upBlack
LSB RED
Cut-off
Counter
LSB GREEN
Cut-off
Counter
White inser-
tion ON/OFF
White
Insertion
(Note 2)
AFC
Defeat
Overmodu-
lation Reset
QSS and AM
demod
defeat
QSS/
Inter-carrier
RGB Peak
Limitation
(Note 2)
Half
Contrast
RGB
Blanking
(Note 2)
Stretch
CO Freeze Blue Drive Adjustment
Not to be
used
CVBS2
ON/OFF
CRT/LCD
Display
L/L’ Mode
Not to be
used
FM/AM
Output
Selection
(Note 1)
CVBS Mute
Chroma
Trap ON/
OFF
(Note 1)
RGBosd
Contrast
Selection
NEG/POS
Modulation
FM Demod.
Defeat
Not to be
used
(SDIP56)
SAW Filter
Switch
(TQFP64)
Coring
ON/OFF
PIFVCO Free Running Coarse Adjustment
INTCVBS Output Amplitude Adjustment
FM Deviation and FM
De-emphasis, Audio FM
Wide mode (Note 1)
Volume Control
AGC SIF
Time Con-
stant
Contrast
Saturation
Brightness
Red Drive Adjustment
Green Drive Adjustment
Green Cut-off Adjustment
APR Threshold APR on/off
Standard Selection
Peaking
Main Audio Output
selection (int./ext.)
Sound
Not to
be used
PIF VCO
compensa-
tion
45/86
Page 46
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
Note 1: Specification changed versus STV223XD/224XC.
Note 2: New feature versus STV223XD/224XC.
Data D7 Data D6 Data D5 Data D4 Data D3 Data D2 Data D1 Data D0
ACCO
11
ON/OFF
12 Not to be used
13 Not to be used
14 Flesh Char.
15 Safety Reset Not to be used SVHS switch
16 Interlace
17 50/60Hz Selection Vertical Amplitude
Vertical
18
19
1A Manual Cut-off Register - Red
1B Manual Cut-off Register - Green
1C Manual Cut-off Register - Blue
1D CVBS1out
1E Not to be used
1F
Sync
ON/OFF
AV Mode
Time
Constant
(Note 2)
NTSC 104
Matrix
Flesh
ON/OFF
HOUT
Disable
Line Sync
ON/OFF
Copy
Protection
Mode
(Note 2)
Audio Out
(Mono or Sound
subcarriers)
PAL/NTSC
Demod.
Gain
Chroma DL
ON/OFF
Crysta l In-
put Pin Disa-
PLL1 Time Constant Vertical Position
Wide Line
Blanking
(Note 2)
ble
Chroma Out
ON/OFF
Chroma Standard Selec-
AVL
Not to be
Used
AGC SIF
Time
Constant
tion
Second Video Switch Con-
Luma Delay
Bell Filter Shift
Hue
trol
Horizontal Shift
Noise Detector
Threshold
Shift
Bandpass Shift
Crystal Selection 3rd Crystal
Main Video
Switch Control
Vertical
Output Low
Control
VERT Out-
put Inhibition
Not to be used
Not to be
used
Long
Blanking
Sound
Status
Refresh
Level
6.2 SUMMARY OUTPUT SIGNALS (READ MODE)
Reg.
Addr.
(Hex)
Data D7 Data D6 Data D5 Data D4 Data D3 Data D2 Data D1 Data D0
00
01
02 Cut-off loop status FM Sound Carrier Levels Digital AF Status
03
Chroma Standard
Selection Status
FM Dem.
VCO Cal.
Status
Tuner AGC
Output Sta-
tus or AVL
Gain Status
Scanning
VCO Cal.
Status
Crystal Selection Status
Test
Not to be
Used
FBext De-
tection
Video Ident.
Status
Safety
Status
IC Identification
Field Lock
Status
Horizontal
Lock Status
50/60 Hz
Status
Noise Detec-
tor Status
Power ON
Reset
SVHS
Status
46/86
Page 47
STV224XH/228XH/223XH - I²C BUS SELECTION
6.3 INPUT SIGNALS (WRITE MODE)
Not used data bits must be set to “0”.
6.3.1 PIFVCO Free Running
Reg.
Addr.
(Hex)
Description Bits
00 PIFVCO
Free Running
Fine Adjustment
d7 d6 d5 d4 d3 d2 d1 d0
70
1
1
Not to be used 1 XXXXXXX0
6.3.2 PIF Free Running Coarse
Reg.
Addr.
(Hex)
Description Bits
d7 d6 d5 d4 d3 d2 d1 d0
01 PIFVCO Free
Running Coarse
Adjustment for
38.9 MHz Carrier
4XX
X
PIFVCO Free
Running Coarse
Adjustment for
33.9 MHz Carrier
4XX
X
(L’)
PIF Modulation
L/L’ Standard
1XXXXXX01XXXXXXXX0 = Negative Modulation.
1XXXX0111XXXXXXXX0 = L Standard.
Selection
Digital AFC Defeat
PIF
1XX01XXXXXXXXXXXX0 = AFC Active.
101XXXXXXXXXXXXXX0 = Over-modulation detection off.
Over-modulation
6.3.3 PIF Features
Reg.
Addr.
(Hex)
Description Bits
02
CVBS Output Amplitude
d7 d6 d5 d4 d3 d2 d1 d0
5X
X
X
Not to be used 1 X X 0 X X X X X
Overmodulation
1XX01XXXXXXXXXXX
Reset
CVBS Output
101XXXXXXXXXXXXXX0 = 2
Data
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
Data
X
0
X
0
0
X
0
X
X
0
X
X
1
1
X
1
1
X
1
1
0
0
1
1
1
1
1
0
0
0
0
1
1
1
1
1
Data
X
X
0
0
0
X
X
1
X
X
1
0
0
0
0
1
1
1
Comments
X
PIF Typical + 0.7MHz.
X
PIF Free Running mid range.
X
PIF Typical - 0.7MHz.
Comments
0
PIFVCO = F0 + 2.0 MHz.
1
PIFVCO = F0 (mid range).
1
PIFVCO = F0 - 1.8 MHz.
0
PIFVCO = F0 + 1.3 MHz.
1
PIFVCO = F0 (mid range).
1
PIFVCO = F0 - 1.2 MHz.
1 = Positive Modulation.
1 = L’ Standard.
1 = AFC Defeat (read register 02, d2 d1 d0 = 000).
1 = Over-modulation regulation active.
Comments
0
V
- 1.6 dB.
Typ.
0
= 1.6 V (black / white).
V
Typ.
1
+ 1.5 dB.
V
Typ.
0 = Normal Operating Mode
X
1 = Overmodulation Reset
, no external sound trap.
VPP
1 = 2.3
, external sound trap.
VPP
47/86
Page 48
6.3.4 Tuner Delay
Reg.
Addr.
(Hex)
Description Bits
03
Tuner AGC Starting
Point Adjustment
Tuner AGC Gain
d7 d6 d5 d4 d3 d2 d1 d0
6X
X
0
X
X
1
X
X
1
20
0
X
0
1
X
1
0
X
1
1
X
6.3.5 SIF Features and Audio Switches
Reg.
Addr
(Hex)
Description Bits
04
Main Audio Output
FM De-emphasis
Switch and FM deviation range control
FM Demodulator
defeat
AM/FM output selection
QSS and AM demodulator defeat
Intercarrier filter
ON/OFF
05 Volume Control
Attenuation,
Linear curve (dB)
Volume Control
Attenuation,
Non-linear curve
(d0 = 0, d7 = 1)
d7 d6 d5 d4 d3 d2 d1 d0
2X
X
X
X
X
X
X
X
X
X
2XX
X
X
X
X
X
X
X
X
X
1XXXXXX01XXXXXXXX0 = FM Demodulator active.
1XXXX01XXXXXXXXXX0 = FM output selected.
XX01XXXXXXXXXXXX0 = QSS and AM demod active,
1
01XXXXXXXXXXXXXX0 = Intercarrier filter ON
1
70001010101010101Attenuation = 0 dB.
61101010101010100Attenuation = 0 dB.
STV224XH/228XH/223XH - I²C BUS SELECTION
Data
0
0
1
X
X
X
X
Data
X
X
X
X
X
X
X
0
0
0
0
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
1
1
0
1
1
Min. Start point 2 mV
0
0
Typ. Start point 12 mV
1
1
Max. Start point 80 mV
X
X
50 µA/dB.
X
X
95 µA/dB.
X
X
170µA/dB.
X
X
270µA/dB.
0
0
FM/AM audio selected.
0
1
External audio selected.
1
X
MUTE selected.
X
X
Automatic control, according to sound standard.
X
X
De-emphasis at 75 µs and FM deviation at ±25 kHz.
X
X
De-emphasis at 50 µs and FM deviation at ±50 kHz.
X
X
Audio FM Wide mode &50 µs De-emphasis (BGDKI).
To be used with 224xH version only in QSS architecture.
1 = FM Demodulator defeat, FM out muted.
1 = AM output selected and FM demod OFF.
1 = QSS and AM demod not active (OFF)
1 = Intercarrier filter OFF
Attenuation = 78 dB.
7-bit resolution.
Attenuation = 78 dB.
6-bit resolution.
Comments
at PIF input.
RMS
at PIF input.
RMS
at PIF input
RMS
Comments
48/86
Page 49
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
Description Bits
06 PIF VCO Compen-
sation
Sound Standard
Selection
AGC SIF time
d7 d6 d5 d4 d3 d2 d1 d0
XXXXXXXXXXXXXX010 = Optimized for PIF from 33.9 to 38.9 MHz
1
2X
X
X
X
X
X
X
X
X
X
X
X
1XXXXXXXX01XXXXXX0 = Auto Time constant.
constant (AM)
SAW filter switch
1XXXXXX01XXXXXXXX0 = output low (0.4 V Max.).
output
CVBS output
(from PIF circuit)
QSS/Inter-carrier
Application
XXXX01XXXXXXXXXX0 = CVBS output enable.
1
XX01XXXXXXXXXXXX0 = QSS application, intercarrier filter OFF
1
Not to be used 1 0 X X X X X X X
6.3.6 Video Controls
Reg.
Addr
(Hex)
Description Bits
07
Contrast Control
RGB Peak
Limitation
Blue Screen
Feature
08
Saturation Control
Half Contrast Ena-
ble
Oversize Blanking
Enable
09
Brightness Control
RGB Blanking
Cut-off Blanking
d7 d6 d5 d4 d3 d2 d1 d0
6XXXX010101010101-24 dB gain (Min. contrast).
1XX01XXXXXXXXXXX
101XXXXXXXXXXXXXX0 = Blue screen OFF.
6XXXX010101010101-40 dB gain (Min. saturation).
1XX01XXXXXXXXXXXX0 = Disabled.
101XXXXXXXXXXXXXX0 = Disabled.
6XXXX010101010101-30% of B/W at Max. contrast.
1XX01XXXXXXXXXXXX0 = Not active (normal operation).
101XXXXXXXXXXXXXX0 = Enable: RGB output blanked when I
Data
X
X
X
X
Data
Comments
1 = Optimized for PIF 45.75 & 58.75 MHz
X
0
0
X
X
0
X
1
X
1
6.5 MHz sound selected.
1
X
6.0 MHz sound selected.
0
X
5.5 MHz sound selected.
1
X
4.5 MHz sound selected.
1 = Fast Time constant forced.
1 = output high (4 V Min.).
1 = CVBS output muted.
1 = Intercarrier application
Comments
0 dB gain (Max. contrast).
0 = APR, APR Threshold, tracked with contrast.
1 = RGB Peak Limitation, threshold not tracked with
contrast.
X
Note: RGB Peak Limitation active when WR10 d0 =
1
1 = Blue screen ON.
+9 dB gain (Max. saturation).
1 = Enabled.
1 = Enabled.
+30% of B/W at Max. contrast.
1 = Active.
voltage
is far from internal cut-off reference (cut-off loop not
CATH
locked), during IC start-up.
1 = Disable: RGB output not blanked by cut-off loop.
49/86
Page 50
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
Description Bits
0A Red Drive Adj ust
(White Point R)
RGBext/YCrCb
Selection
0B Green drive adjust-
ment
(white point G)
Black stretch enable
Black Stretch
Reference Level
0C Blue drive adjust-
ment
(white point B)
Cut-off loop control
LSB (9th bit) Red
cut-off counter
0D Red cut-off adjust-
ment (Black point
R)
Manual Cut-off Selection
0E Green cut-off ad-
justment (Black
point G)
Not to be used 1 X 0 X X X X X X
LSB (9th bit) Green
cut-off counter
0F Peaking Control 4 XXXXXXXX010101010 dB at center Freq. Min. peaking.
Coring on sharpness
Chroma Trap and
Luma Delay Selection
CVBS2 ON/OFF 1 XX01XXXXXXXXXXXX0 = CVBS2 output Enabled.
White Insertion 1 01XXXXXXXXXXXXXX0 = White insertion not active.
d7 d6 d5 d4 d3 d2 d1 d0
6XXXX010101010101-6 dB gain (Min. drive).
20
0
1
1
6XXXX010101010101-6 dB gain (Min. drive).
1XX01XXXXXXXXXXXX0 = Black stretch disable.
01XXXXXXXXXXXXXX0 = 0 IRE (no set-up).
1
6XXXX010101010101-6 dB gain (Min. drive).
1XX01XXXXXXXXXXXX0 = Cut-off loop active.
01XXXXXXXXXXXXXXRed LSB = 0
1
6XXXX010101010101-150 mV.
20101XXXXXXXXXXXXAutomatic Cut-off application, data = 00hex in
0110XXXXXXXXXXXXNot allowed.
6XXXX010101010101-150 mV.
01XXXXXXXXXXXXXXGreen LSB = 0
1
1XXXXXX01XXXXXXXX0 = Coring off.
1XXXX01XXXXXXXXXX0 = Trap and Luma Delay Enabled.
Data
0 dB gain (Max. drive).
0
X
X
X
X
X
X
RGB ext. insertion enable controlled by FBext input
1
X
X
X
0
X
1
X
X
X
X
X
X
X
X
pin.
X
X
RGB ext. insertion disable, FBext control disable.
X
X
RGB ext. insertion forced (FBext not active).
X
X
YCrCb insertion forced.
if WR0F d5 = 0 : Y on Gext (Luminance input) and
CVBSin (for synchro).
if WR0F d5 = 1 : Y on CVBSin (for luminance and
synchro), Cr on Rext, trap and luma delay disabled.
0 dB gain (Max. drive).
1 = Black stretch enable.
1 = 7.5 IRE (NTSC set-up).
0 dB gain (Max. drive).
1 = Cut-off loop frozen.
Red LSB = 1
+150 mV.
registers 1A,1B, 1C.
Manual cut-off application DC at R,G,B output are
adjusted thanks registers 1A, 1B, 1C.
Not allowed.
+150 mV.
Green LSB = 1
+ 6dB at center Freq.Max. peaking.
1 = Coring on.
1 = Trap and Luma Delay Disabled.
1 = CVBS2 output Disabled.
1 = White insertion enable during HOUT soft mode.
Comments
50/86
Page 51
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
Description Bits
10 APR Enable
APR Threshold 4 XXXXXX01010101XX50 IRE.
RGB OSD Contrast Selection
CRT/LCD Display 1 XX01XXXXXXXXXXXX0 = RGB output blanking active, CRT Display
White Insertion 1 01XXXXXXXXXXXXXXWhite Insertion controlled by WR0Fd7
d7 d6 d5 d4 d3 d2 d1 d0
1XXXXXXXXXXXXXX0
1XXXX01XXXXXXXXXX0 = Contrast control disable.
Data
Comments
0 = APR disable.
1 = APR enable.
1
Note: WR10 d0 to be set to 1 when RGB peak limitation is used
100 IRE.
1 = Contrast control enable.
1 = RGB output blanking replaced by black level,
LCD Display
White forced at RGB Output
6.3.7 Chroma Controls
Reg.
Addr.
(Hex)
11
12
13
Description Bits
Bell Filter Adjust
PAL/NTSC
Demodulation Gain
NTSC Matrix 1
ACC Overload Disable 1
Bandpass adjust
Chroma reference out-
put
Chroma DL selection
Not to be used 2 0 0 X X X X X X
Crystal Selection
Standard Selection
Crystal Inhibition
Not to be used 2 0 0 X X X X X X
d7 d6 d5 d4 d3 d2 d1 d0
5XXXXXX01010101010kHz.
1XXXX01XXXXXXXXXX0 = 0 dB gain (nominal).
XX01XXXXXXXXXXXX0 = 90° matrix selection.
01XXXXXXXXXXXXXX0 = ACC overload active.
4XXXXXXXX01010101f = fosc.
1XXXXXX01XXXXXXXX0 = Chroma reference output OFF.
1XXXX01XXXXXXXXXX0 = ON.
2X
X
X
X
2X
X
X
X
X
X
X
2X
X
X
X
Data
+100 kHz.
1 = +6 dB gain.
1 = 104° matrix selection (in NTSC only).
1 = ACC overload disable.
f = 1.1*fosc.
1 = Chroma reference output ON.
1 = OFF.
X
X
X
X
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
X
0
X
1
X
1
0
X
X
1
X
X
1
0
0
X
0
1
X
1
0
0
1
0
0
1
0
1
1
1
X
X
X
1
X
X
X
X
X
X
X
X
X
X
X
X
XTAL1 (4.43/3.5XX MHz).
1
X
XTAL2 (3.5XXMHz).
0
X
XTAL3 (3.5XXMHz).
1
X
Not allowed.
X
X
PAL.
X
X
NTSC.
0
0
SECAM (only with XTAL1).
1
X
Not allowed.
0
X
Not allowed.
X
X
AUTO mode.
1
X
Not allowed
X
0
Two-crystal, P/S/N application.
X
1
Three-crystal, P/N application.
X
0
One-crystal, P/S/N 4.43 MHz application.
X
1
Two-crystal, P/N application.
Comments
51/86
Page 52
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
14 Hue Cont rol
15
Description Bits
(in NTSC only)
Flesh Enable
Wide Flesh Charac-
Teristic Selection
Main Video Switch
Second Video Switch
Control
SVHS Swit ch Chrom a
Decoder Input Selection
Not to be used 2 X 0 0 X X X X X
Safety Reset
d7 d6 d5 d4 d3 d2 d1 d0
6XXXX010101010101-45°.
1XX01XXXXXXXXXXXX0 = Flesh disable (OFF).
101XXXXXXXXXXXXXX0 = Normal characteristic.
2X
X
X
X
X
X
X
X
2X
1XXXXXX01XXXXXXXX0 = Main CVBS selected.
101XXXXXXXXXXXXXX0 = Safety active
X
X
X
X
X
X
X
X
X
X
X
X
6.3.8 Scanning Controls
Reg.
Addr.
(Hex)
16
17
18
Description Bits
Horizontal Shift
Horizontal Output
Pulse Disable
Interlace
Vertical Amplitude 6
50/60Hz Selection 2
Vertical Position
PLL1 Time Constant
Horizontal
Synchronization
Vertical
Synchronization
d7 d6 d5 d4 d3 d2 d1 d0
6XXXX010101010101-2.5 µs.
1XX01XXXXXXXXXXXX0 = Normal mode.
101XXXXXXXXXXXXXX0 = Interlace mode.
XXXX0101010101011.5 V on V
0
0
X
0
1
X
1
0
X
1
1
4XXXXXXXX010101014 V high level on VERT Pin.
2X
1XX01XXXXXXXXXXXX0 = PLL1 active.
101XXXXXXXXXXXXXX0 = Vertical synchronization active.
X
X
0
X
X
0
X
X
1
X
X
1
Data
X
X
X
X
X
X
X
Data
X
X
X
X
0
1
0
1
Comments
+45°.
1 = Flesh enable (ON).
X
X
X
X
X
X
0
0
0
1
1
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1 = Wide characteristic.
0
0
CVBS1 selected.
0
1
CVBS2 selected.
1
X
Y/CVBS3 selected.
X
X
CVBS1 selected.
X
X
CVBS2 selected.
X
X
Y/CVBS3 selected.
X
X
Y+C selected.
1 = CHR input selected (SVHS).
1 = Reset Safety, Safety non-active
Comments
+2.5 µs.
1 = HOUT disable (high level).
1 = De-interlace mode.
6.0 V on V
X
X
Auto (50 Hz when no ident.).
X
X
60 Hz.
X
X
50 Hz.
X
X
Auto (60 Hz when no ident.).
6 V high level on VERT Pin.
X
X
Auto time constant selection.
X
X
Short time constant.
X
X
Long time constant.
X
X
Very long time constant.
1 = PLL1 not active (horiz. free running mode).
1 = Vertical free running mode.
AMP
AMP
Pin.
Pin.
52/86
Page 53
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
19 Vertical Output Low
Description Bits
Level Control
Frame Blanking
Noise Detector
Threshold
Not to be used 1 X X 0 0 X X X X
Wide Line Blanking 1
Copy Protection Mode
AV Mode Time
Constant
d7 d6 d5 d4 d3 d2 d1 d0
1XXXXXXXXXXXXXX010 = 0. 1V low level on VERT Pin.
1XXXXXXXXXXXX01XX0 = Adapted to standard.
2XXXXXXXX0101XXXXLow threshold.
XXXX01XXXXXXXXXX0 = Standard Line Blanking
1XX01XXXXXXXXXXXX0 = Normal PLL1 operating mode.
101XXXXXXXXXXXXXX0 = PLL1 short time constant during all frames.
Data
6.3.9 Miscellaneous
Reg.
Addr.
(Hex)
1A Man ual Cut-off
1B Man ual Cut-off
1C Manual Cut-off
1D CVBS1 Out selection at
1ENot To Be Used 7 000X0000
Description Bits
Register Red
Register Green
Register Blue
pin 29 SDIP56 80000000000101010
SIF AGC time
constant (positive modulation)
d7 d6 d5 d4 d3 d2 d1 d0
0101010101010101Low DC at RGB output.
8
0101010101010101Low DC at RGB output.
8
0101010101010101Low DC at RGB output.
8
0000000100000000Automatic SIFAGC Time constant control.
1
Data
Comments
1 = 2 V low level on VERT Pin.
1 = Long blanking (50 Hz blanking) both in 50 Hz
and 60 Hz modes
High threshold.
1 = Wide Line Blanking
1 = Copy Protection Mode.
1 = PLL1 long time constant during vertical blanking, short time constant for the rest of the field.
Comments
High DC at RGB output.
High DC at RGB output.
High DC at RGB output.
CVBSOUT1 selected at pin 29 SDIP56.
Default value, set to 0h when CVBSOUT1 not
used.
Forced Long time constant.
53/86
Page 54
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
(Hex)
1F
Description Bits
VERT Output Inhibition
Sound Level Status
Refresh
Not to be used 1 XXXXX0XX
Luma Delay Shift
AVL Control & Status
AM/FMOUT pin selection
d7 d6 d5 d4 d3 d2 d1 d0
1XXXXXXXXXX00XX01VERT normal operating.
1XXXXXXXXXX0001XX0 = Sound level status continuously refreshed
1XXXXXXXX0100XXXXStandard luma delay.
2X
X
X
X
20
0
1
1
Data
X
0
0
X
0
1
X
1
0
X
1
1
0
X
X
1
X
X
0
X
X
1
X
X
6.4 OUTPUT SIGNALS (READ MODE)
Reg.
Addr.
(Hex)
00
Description Bits
Power-on Reset
Field Frequency
Field Lock Status
Video Identification
Standard Status Crystal
Selection
Standard Selection
d7 d6 d5 d4 d3 d2 d1 d0
1XXXXXXXXXXXXXX01Normal mode.
1XXXXXXXXXXXX01XX50 Hz.
1XXXXXXXXXX01XXXXNot locked.
1XXXXXXXX01XXXXXXNo identification.
2X
X
0
X
X
0
X
X
1
X
X
1
20
0
X
0
1
X
1
0
X
1
1
X
X
X
X
X
X
X
X
X
Data
0
1
0
1
X
X
X
X
Comments
VERT inhibition (forced to high DC level controlled
by vertical position register).
1 = Sound level status refreshed only at the end of
vertical synchronization pulse
X
X
X
X
0
0
0
0
X
X
X
X
X
X
X
X
140 ns on luma delay.
X
X
AVL OFF, read reg 03h, d7 = AGC Tuner Status
X
X
AVL OFF, read reg 03h, d7 = AGC Tuner Status
X
X
AVL ON, read reg 03h, d7 = AVL Gain Status
X
X
AVL ON, read reg 03h, d7 = AGC Tuner Status
reg 04h, d3d2 = 11: AVL Gain Status = 1 (Min.)
reg 04h, d3d2
X
X
Output of AM/FM demodulator.
X
X
Sound subcarriers selected.
X
X
Audio output muted.
X
X
Main audio switch output, either internal or external audio depending on main audio switch selection.
reg 04h; d0 = 0: internal audio.
reg 04h; d0 = 1: external audio.
Power down mode.
60 Hz.
Locked.
Video identification.
X
X
X
X
X
X
X
X
X
X
XTAL1 (4.43 MHz).
X
X
XTAL2 (3.5X MHz).
X
X
XTAL3 (3.5X MHz).
X
X
XTAL1 (3.5X MHz).
X
X
PAL.
X
X
NTSC.
X
X
SECAM.
X
X
COLOR OFF.
¹ 11: AVL Gain Status = 0 (Max.)
Comments
54/86
Page 55
STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr.
Description Bits
(Hex)
01
SVHS status
Noise detection
Scanning Horizontal
phase-locked loop status
Safety status
Fas t Blan kin g dete ctio n on
external fast blanking pin
Test
Scanning VCO
Calibration
FM demodulation VCO
calibration
02
Digital AFC status
Sound carrier level
Blue cut-off register and
cut-off loop status
03
IC identification
Tuner AGC Output Status
(reg 1Fh, d5d4 = 00 or 01
or 11)
AVL Gain Status
(reg 1Fh, d5d4 = 10)
Data
d7 d6 d5 d4 d3 d2 d1 d0
Comments
1XXXXXXXXXXXXXX01No SVHS (CVBS mode).
SVHS mode.
1XXXXXXXXXXXX01XXHigh S/N.
Low S/N.
1XXXXXXXXXX01XXXXNot locked.
Locked.
1XXXXXXXX01XXXXXXSafety not active.
Safety active.
1XXXXXX01XXXXXXXXNo insertion detected.
Insertion on FBext.
1XXXX01XXXXXXXXX
Not to be used
X
1XX01XXXXXXXXXXXXNot calibrated.
Calibrated.
101XXXXXXXXXXXXXXNot calibrated.
Calibrated.
3X
X
X
X
X
3X
X
X
X
X
X
X
X
20
0
1
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
X
0
0
X
0
1
X
0
1
X
1
1
X
1
1
X
1
0
X
1
0
0
X
X
1
X
X
0
X
X
1
X
0
1
X
0
0
X
1
0
X
1
0
0
X
X
1
X
X
1
X
X
0
X
X
0
X
X
1
X
X
1
X
X
0
X
X
X
X
X
X
X
X
X
X
X
- F0 < -300kHz.
1
F
PLL
-300 kHz < F
0
-60 kHz < F
0
+60 kHz < F
0
+300 kHz < F
1
X
Level 1 (low sound carrier signal).
X
Level 2.
X
Level 3.
X
Level 4.
X
Level 5.
X
Level 6.
X
Level 7.
X
Level 8 (high sound carrier signal)
X
Blue CO register < 011110000
X
Blue CO register > 100001111
X
011110000 < Blue CO register < 100001111
- F0 < -60 kHz.
PLL
- F0 < +60 kHz.
PLL
- F0 < +300 kHz.
PLL
- F0.
PLL
and Icath not locked
1
1
X
X
X
X
X
X
011110000 < Blue CO register < 100001111
and Icath locked
1XXXXXXXXXXXXXX01TQFP64
SDIP56
101XXXXXXXXXXXXXXTuner AGC Output not active
Tuner AGC Output active
101XXXXXXXXXXXXXXAVL Gain Max. (Low audio signal)
AVL Gain Min. (High audio signal)
55/86
Page 56
STV224XH/228XH/223XH - I²C BUS SELECTION
6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS
Power-On Reset is active when the power supply V
All data from all registers must be written by microprocessor after power-on. Unused data must be set to
0. POR values are not tested during production.
Reg.
Addr.
(Hex)
0C 0 0 1 0 0 0 0 0 Blue drive at middle, cut-off loop active.
0D 0 0 1 0 0 0 0 0 Red cut-off at middle, automatic cut-off loop.
1C 0 0 0 0 0 0 0 0 Not active, auto cut-off.
1D 0 0 0 0 0 0 0 0 R-Y output at pin 29 (SDIP56)
Initial Data Value
d7 d6 d5 d4 d3 d2 d1 d0
00 1 0 0 0 0 0 0 0 PIFVCO free running fine adjustment Typical.
01 00000111
02 0 0 0 1 0 0 0 0 CVBS amplitude Typical, 2V
03 0 0 1 0 0 0 0 0 Tuner AGC starting point Typical, Tuner AGC gain Min.
04 00000000
05 0 1 1 1 1 1 1 1 Volume control attenuation at maximum, linear curve (dB).
06 00000000
07 0 0 1 0 0 0 0 0 Contrast at middle, blue screen disabled.
08 0 0 1 0 0 0 0 0 Saturation at middle, half contrast disabled, oversize blanking disabled.
09 0 0 1 0 0 0 0 0 Brightness at middle, RGB Blanking not active.
0A 0 0 1 0 0 0 0 0 Red drive at middle, RGBext insertion enabled (FBext Pin control).
0B 0 0 1 0 0 0 0 0 Green drive at middle, black stretch disabled, black stretch ref 0IRE.
0E 00100000Green cut-off at middle.
0F 00001000
10 0 0 0 1 0 0 0 0 APR disabled, APR threshold at middle, RGB OSD contrast disabled.
11 00000000
12 00000000
13 0 0 0 0 0 0 0 0 Two crystals application P/S/N, PAL XTAL1 forced mode, two crystal applications.
14 0 0 1 0 0 0 0 0 Hue at middle, flesh disabled, normal flesh characteristic.
15 00000000
16 0 0 1 0 0 0 0 0 Horizontal shift at middle, horizontal output enabled, interlace mode.
17 0 0 1 0 0 0 0 0 Vertical amplitude at middle, auto 50/60 Hz identification.
18 00001000
19 00000000
1A 0 0 0 0 0 0 0 0 Not active, auto cut-off.
1B 0 0 0 0 0 0 0 0 Not active, auto cut-off.
1E 0 0 0 0 0 0 0 0 Not to be used, except d4: Auto. SIF AGC time constant control in L/L’ standards.
1F 0 0 0 0 0 0 0 0 VERT pulse active, standard luma delay, AVL off, AM/FM mono sound selected.
PIFVCO coarse typ, BG = 38.9 MHz, Negative modulation, AFC active,
no PIF over-modulation regulation.
FM/AM out selected, FM de-emphasis and FM deviation auto-control, FM demod.
active, FM out selected, QSS and AM demod. active.
PIF < 42 MHz, 6.5 MHz sound carrier selected, auto AGC SIF time constant, saw
filter switch control at low level, CVBS out enabled, QSS mode.
Peaking on luma at middle, coring off, trap ON (CVBS & color identified), CVBS2
ON, white insertion not active.
No shift of bell filter center frequency, 0dB P/N demod. gain, 90° matrix selection,
ACC overload ON.
No shift of bandpass center frequency, chroma reference output off, chroma delay
line on.
CVBS1 selected on main CVBS output, CVBS1 selected on second CVBS output,
CVBS mode.
Vertical position at middle, automatic time constant selection on PLL1, PLL1 active,
Vertical synchronization active.
0.1 V low level at pin VERT, frame blanking adapted to standard, noise detector low
threshold.
is below 3 Volts.
CCD
Comments
PP.
56/86
Page 57
STV224XH/228XH/223XH - I²C BUS SPECIFICATION COMPATIBILITY
7 I²C BUS SPECIFICATION COMPATIBILITY
The STV2246H/36H, 2286H, 2247H/37H, 2248H/
38H and 2249H/3 9H I²C bus sp ec ificatio n i s c om patible between IC version. However, some dedicated settings must be used for the different ver-
RGBext
WR0A d7:6
L/L' mode
WR01 d5
Positive/Negative Modulation
WR01 d4
FM/AM Output Selection
WR04 d5
Bell Filter
WR11 d4:0
QSS/Intercarrier Application
WR06 d6
QSS and AM defeat
WR04 d6
AGC SIF Time Constant
WR06 d3 & WR1E d4
CVBSout amplitude
WR02 d4:0
Note 1: The FBEXT pin must be connected to ground.
2248H/38H 2249H/39H 2247H/37H 2246H/36H 2286H
XXXX01
X0000
X0000
X0000
X X 00000 00000 00000
XXX11
XXX11
XXXX00
XXXX10000
sions. The following sections show th e differences
betw een the v ariou s versio ns. An “X” mean s that
the fun ction is av ailable an d can be se t to “1” or
“0”.
1
CAUTION: The specification of WR04 d3:2 has changed.
For 224 XC ve rs ions (re fer t o ST V224 XC da ta shee t), W R04 d3:2 = 1 1 (bin .) m eans that FM demo d deemphasis is bypassed. This function is used for BTSC application compatibility.
For 224XD/XE vers ions, WR04 d3:2 = 11: N OT TO BE USED .
For 224XH versions, WR04 d3:2 = 11 (bin.) means that Audio FM Wide mode is selected and it must be
used in QSS applications only. In this case, t he following registers must be programmed:
WR04 d3:2 = 11 (bin.) (Audio FM Wide mode)
WR06 d6 = 0 (QSS application)
WR1F d5:4 = 1x (bin.) (AVL ON)
CAUTION: The specification of WR07 d6 has changed.
For 224X C/224XD ver sions, WR07 d 6 = 1 means “ins ertion of cut- off pulses afte r a vertical ov ersize
blanking”
For 224XE/XH vers ions, WR07 d6 = 1 means “RGB peak limitati on”
CAUTION: The specification of WR0F d5 has changed.
The new spe ci f i ca tio n is :
WR0F d5 = 0: trap and luma delay active; this is not changed
WR0F d5 = 1: trap and luma delay disabled (bypass); this is changed
57/86
Page 58
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
8 INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 20. Ground and Supply Voltages
V
(5 V)
CCD
Pin 53 (SDIP56)
V
(5 V)
CCIF
Pin 12 (SDIP56)
V
CC2
Pin 17 (SDIP56)
(8 V)
V
(8 V)
CC1
Pin 45 (SDIP56)
GNDD
Pin 54 (SDIP56)
Figure 21. Main Audio Output
AUDIOOUT
Pin 55 (SDIP56)
GND
V
IF
CC2
GND
Pin 10 (SDIP56)
(8V)
IF
Pin 19 (SDIP56)
50 W
GND
GND2
IF
GND
IF
GND1
Pin 43 (SDIP56)
GND
IF
58/86
Page 59
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 22. Scanning PLL Filter
SLPF
Pin 50 (SDIP56)
V
CC1
GND1
(8 V)
V
CC1
V
REF
V
CC1
59/86
V
CC1
Page 60
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 23. I²C Bus Data Input
SDA
Pin 52 (SDIP56)
GNDD
5V
10 kW
V
(5V)
CCD
GNDD
GNDD
Figure 24. I²C Bus Clock Input
V
(5V)
CCD
5V
SCL
Pin 51 (SDIP56)
10 kW
GNDD
GNDD
60/86
Page 61
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 25. FM Demodulation Capacitor
V
(5V)
CCIF
FMCAP
Pin 56 (SDIP56)
GND
V
CCIF
(5V)
GND
IF
GND
IF
50 W
GND
IF
IF
GND
GND
IF
IF
GND
IF
GND
IF
Figure 26. IF Inputs
SIFIN1
Pin 1 (SDIP56)
PIFIN1
Pin 6 (SDIP56)
61/86
GND
V
(5V)
CCIF
SIFIN2
Pin 2 (SDIP56)
PIFIN2
Pin 7 (SDIP56)
IF
GND
IF
2.5 V
GND
IF
Page 62
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 27. AGC SIF Capacitor
V
CCIF
(5V)
GND
IF
AGCSIFCAP
Pin 3 (SDIP56)
GND
IF
Figure 28. Voltage Reference Filtering
VREFIF
Pin 4 (SDIP56)
GND
IF
GND
V
CCIF
GND
IF
(5V)
IF
GNDIFGND
GND
IF
GND
IF
IF
62/86
Page 63
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 29. AGC PIF Capacitor
V
(5V)
CCIF
GND
IF
GND
IF
GND
IF
AGCPIFCAP
Pin 5 (SDIP56)
GND
IF
GND
GND
IF
IF
GND
IF
GND
IF
Figure 30. SAW Filter Switch Output (TQFP64)
V
(5V) (Pin 20 - TQFP64)
CCIF
SAWSWI
15
(TQFP64)
GND
63/86
IF
Page 64
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 31. AGC Tuner Output
V
CCIF
(5V)
12 V
TUNERAGCOUT
Pin 8 (SDIP56)
Figure 32. IF PLL Filter
GND
IF
GND
GND
IF
GND
IF
GND
IF
V
CCIF
IF
(5V)
GND
IF
GND
IF
IFPLL
Pin 9 (SDIP56)
GND
GND
GND
GND
IF
IF
IF
GND
IF
IF
64/86
Page 65
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 33. AM/FM Mono or Stereo Sound Carrier Output
V
(8V)
CC2
AM/FMOUT/SC
Pin 11 (SDIP56)
GND
IF
GND
IF
Figure 34. Internal CVBS Output
V
(8V)
CC2
V
CCIF
(5V)
INTCVBSOUT
Pin 13 (SDIP56)
65/86
GND
GND
IF
GND
IF
IF
GNDD
Page 66
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 35. External Audio Input
V
CCIF
(5V)
EXTAUDIN
Pin 14 (SDIP56)
Figure 36. PIF LC Inputs
PIFLC1
Pin 15 (SDIP56)
GND
IF
PIFLC2
Pin 16 (SDIP56)
GND
GND
IF
IF
V
CCIF
GND
(5 V)
IF
GND
IF
GND
IF
GND
IF
GND
GND
IF
GND
IF
IF
66/86
Page 67
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 37. CVBS Video Inputs
V
(8 V)
CC1
CVBSIN1
Pin 18 (SDIP56)
CVBSIN2
Pin 20 (SDIP56)
GND2
Figure 38. Black Stretch Capacitor
BS
Pin 21 (SDIP56)
GND1
GND1 GND1
GND1
V
(8 V)
CC2
GND1
67/86
GND2
GND2
GND2GND2
Page 68
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 39. RGB & YCrCb External Video Inputs
V
BEXT/CB
Pin 25 (SDIP56)
GEXT/Y
Pin 26 (SDIP56)
REXT/CR
Pin 27 (SDIP56)
GND2
CC2
(8 V)
GND2
GND2 GND2
Figure 40. Ex ternal Fa st Blanki ng Input
FBEXT
Pin 28 (SDIP56)
GND2
GND2 GND2 GND2 GND2
GND2
V
(8 V)
CC2
(5 V)
V
CCD
GND2 GND2 GND2 GND2
GND2
68/86
Page 69
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 41. Y/CVBS External Input
V
(8 V)
CC1
GND1GND1
Y/CVBSIN3
Pin 22 (SDIP56)
GND1
GND2
GND1
GND1
Figure 42. Chroma (SVHS) Input
CHR
Pin 23 (SDIP56)
V
CC1
(8 V)
GND2
GND1
GND1
GND1
GND1
69/86
Page 70
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 43. Automatic RGB Peak Regulation
V
(8 V)
CC2
APR
Pin 24 (SDIP56)
Figure 44. RGB Outputs
BOUT
Pin 30 (SDIP56)
GOUT
Pin 31 (SDIP56)
ROUT
Pin 32 (SDIP56)
GND2
GND2
GND2
V
CC2
GND2
GND2
(8 V)
GND2 GND2
70/86
Page 71
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 45. Cathode Current Measurement Input
V
(8 V)
CC2
ICATH
Pin 33 (SDIP56)
GND2
GND2
GND2
GND2
GND2
GND2GND2
71/86
Page 72
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 46. OSD RGB Inputs
BOSD
Pin 34 (SDIP56)
GOSD
Pin 35 (SDIP56)
ROSD
Pin 36 (SDIP56)
GND2
V
(8 V)
CC2
GND2GND2
GND2GND2GND2
72/86
Page 73
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 47. Half Contrast Input
V
(8 V)
CC2
FBOSD/HC
Pin 37 (SDIP56)
GND2
GND2
Figure 48. 3.5X MHz Crystal or Bell Filter Tuning Capacitor
V
(5 V)
(8 V)
V
CC1
CCD
XTAL3/BTUN
Pin 38 (SDIP56)
GND1
GND1
GND2
GND1
GND2
GND2
GND2
GND1
73/86
GND1GND1
GND1
Page 74
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 49. 4.43/3.5X MHz Crystal
V
(8 V)
CC1
XTAL1
Pin 40 (SDIP56)
XTAL2
Pin 39 (SDIP56)
GND1
Figure 50. Chroma PLL Filter
(5 V)
V
CCD
GND1
GND1
V
(5 V)
CCD
CPLF
Pin 41 (SDIP56)
V
(8 V)
CC1
GND1
GND1 GND1
GND1 GND1 GND1 GND1 GND1
74/86
Page 75
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 51. XTAL1 Control Pin, Vert. Amplitude DAC Output and Chroma Reference Signal Output
V
(8 V)
CC1
X1/VAMP¨/CHROUT
Pin 42 (SDIP56)
GND1
Figure 52. NTBC or Main CVBS Video Switch Output
NTBC/CVBSOUT1
Pin 29 (SDIP56)
GND1 GND1 GND1 GND1
V
(8 V)
CC1
GND1
75/86
GND1 GND1 GND1
Page 76
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 53. Second CVBS Video Switch Output
V
CC1
CVBSOUT2
Pin 44 (SDIP56)
GND1
GND1
(8 V)
GND1
GND1 GND1 GND1
Figure 54. Beam Current Limiter Control Voltage and Safety Input
V
(8 V)
CC1
GND1
GND1
BCL/SAF
Pin 46 (SDIP56)
GND1
GND1
GND1 GND1GND1
76/86
Page 77
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 55. Vertical Output Pulse
V
(8 V)
CC1
VERT
Pin 47 (SDIP56)
GND1
Figure 56. Horizontal Output Pulse
HOUT
Pin 48 (SDIP56)
GND1
V
CC1
GND1
(8 V)
GND1
GND1
GND1
GND1
77/86
Page 78
STV224XH/228XH/223XH - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 57. Li ne Flyback Input an d Super-Sandcastl e Output
V
(8 V)
CC1
LFB/SSC
Pin 49 (SDIP56)
GND1
GND1
GND1
GND1
GND1
GND1
GND1
78/86
Page 79
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
9 APPLICATION DIAGRAMS
Figure 58. STV2246H
)
LFB
Audio Ou t
(to audi o ampli f i e r)
PP
BCL
56 kOhms
VAMP
CVBSOUT2
(2 V
FBOSD
BOSD
ROSD
GOSD
1 µF
27 kOh m
)
PP
CVBSOUT1 (1V
MULTISTANDARD ASIA MONO APPLICATION
PAL/NTSC BG/DK/I/M/N
FMCAP
AUDIOOUT
NCNCNC
CCD
SCL
SDA
V
GNDD
SLPF
LFB/SSC
REFIF
AGCPIFCAP
PIFIN1
PIFIN2
V
TUNERAGCOUT
BG/DK/I
VERT
HOUT
STV
IFPLL
GNDIFFMOUT
CC1
V
BCL/SAF
CCIF
V
GND1
CVBSOUT2
224
INTCVBSOU T
EXTAUDIOIN
CLPF
XTAL1
XTAL2
XTAL3
X1/VAMP/CHROUT
PIFLC1
PIFLC2
FBOSD/HC
6
H
CC2
V
CVBSIN1
GND2
CVBSIN2BSY/CVBSIN3
CATH
I
BOSD
ROUT
ROSD
GOSD
CHR
INTCVB SOUT
BOUT
GOUT
NTBC/CVBS OUT1
ARR
BEXT/Cb
GEXT/Y
REXT/Cr
FBEXT
22 nF
22 nF
22 nF
SVHS
From Ext. RGB or
From Ext. YCrCb
EXTERNAL CVBS INPUT
79/86
Page 80
Figure 59. STV2247H
Audio Out
(to audio amplifier)
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
)
LFB
SDA
SCL
PP
BCL
(2 V
CVBSOUT
56 kOhms
C42
27 k Ohms
FBOSD
ROSD
GOSD
BOSD
J32
To CRT Board
I
CATH
GND
ROUT
GOUT
BOUT
1 µF
R38
V
CC
)
PP
CVBSOUT1 ( 1 V
MULTISTANDARD ASIA STEREO APPLICATION
PAL/NTSC BG/DK/I/M/N
CCD
SCL
SDA
V
GNDD
FMCAP
AUDIOOUT
SIFIN1
SIFIN2
AGCSIFCAP
SLPF
LFB/SSC
REFIF
V
PIFIN1
PIFIN2
TUNERAGCOUT
AGCPIFCAP
VERT
HOUT
STV
IF
IFPLL
GND
CC1
V
GND1
CLPF
XTAL1
XTAL3
BCL/SAF
CVBSOUT2
224
CCIF
V
INTCVBSOU T
FMOUT/SC
EXTAUDIOIN
XTAL2
X1/VAMP/CHROUT
PIFLC1
PIFLC2
FBOSD/HC
7
H
CC2
V
GND2
CVBSIN2BSY/CVBSIN3
CVBSIN1
CATH
I
BOUT
ROSD
ROUT
BOSD
GOSD
GOUT
NTBC/CVBSO UT1
CHR
ARR
REXT/Cr
FBEXT
BEXT/Cb
GEXT/Y
22 nF
22 nF
22 nF
SVHS
From Ex t. RG B or
From Ex t. Yc rCb
INTCVB SOUT
EXTERNAL C VBS INPUT
80/86
Page 81
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
Figure 60. STV2248H
)
PP
VAMP
(2 V
BCL
LFB
SCL
SDA
Audio Out
(to Audio Amplifier)
HOUT
VOUT
CVBSOUT
56 kOhms
1 µF
FBOSD
ROSD
GOSD
BOSD
J32
To CRT Board
I
CATH
GND
ROUT
GOUT
BOUT
V
CC
)
PP
CVBSOUT1 (1V
CCD
SCL
V
SDA
GNDD
FMCAP
AUDIOOUT
SLPF
LFB/SSC
PAL/SECAM/NTSC BG/DK/I/LL’
REFIF
SIFIN1
SIFIN2
V
PIFIN1
TUNERAGCOUT
MULTI-STANDARD EUROPEAN APPLICATION
AGCSIFCAP
PIFIN2
AGCPIFCAP
BG/DK
BG/DK /I/L
VERT
HOUT
STV
IF
IFPLL
GND
BCL/SAF
AM/FMOUT/SC
CC1
V
CVBSOUT2
224
CCIF
INTCVBSOU T
V
CATH
CLPF
GND1
XTAL1
XTAL2
FBOSD/HC
X1/VAMP/CHROUT
PIFLC1
EXTAUDIOIN
XTAL3/BTUN
8
H
CC2
V
PIFLC2
GND2
CVBSIN1
CVBSIN2
I
BOUT
ROUT
ROSD
GOSD
BS
Y/CVBSIN3
GOUT
BOSD
NTBC/CVBS OUT1
CHR
ARR
FBEXT
REXT/Cr
BEXT/Cb
GEXT/Y
22 nF
22 nF
22 nF
81/86
Page 82
Figure 61. STV2238H (T QFP64)
STV224XH/228XH/223XH - APPLICATION DIAGRAMS
1 µF
56 kOhms
MULTI-STANDARD EUROPEAN APPLICATION
PAL/SECAM/NTSC BG/DK/I/LL’
LFB/SSC
SLPF
SCL
SDA
V
CCD
GNDD
AUDIOOUT
FMCAP
SIFIN1
SIFIN2
AGCSIFCAP
V
REFIF
AGCPIFCAP
PIFIN1
PIFIN2
SAW
TUNERAGCOUT
IFPLL
NC
CC1
VERT
HOUT
V
BCL/SAF
CLPF
GND1
CVBSOUT2
X1/VAMP/CHROUT
STV2238H
GNDIF
AM/FMOUT/SC
VCCIF
INTCVBSOU T
EXTAUDIOIN
PIFLC1
PIFLC2
VCC2
CVBSIN1
XTAL1
XTAL2
XTAL3/BTUN
GND2
CVBSIN2BSNCNCNC
NC
ROSD
FBOSD
GOSD
BOSD
ICATH
ROUT
GOUT
BOUT
NC
CVBSOUT1
FBEXT
REXT/Cr
GEXT/Y
BEXT/Cb
Y/CVBSIN3
APR
CHR
NC
GEXTG EXT
BEXT
1V
PP
to telete x t
output
FBEXT
REXT
82/86
Page 83
STV224XH/228XH/223XH - THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE
10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE
Proper cooling of the STV223XH circuit (TQFP64 package) requires particular care.
R
The valu e of
The circuit is soldered ABOVE a printed circuit board (with as much ground plane as possible) and it ex-
change s freely wi th its environment by natural convection and radiation.
This 'ideal' condition may not be possible in a real TV set environment and
given va lue.
In particular, the worst case is when the circuit is soldered BELOW the chassis board in a confined volume
between the chassis board and the bottom of the TV box. In thi s case,
Recommendations:
■ to perfo rm a qu ic k t he oretical temperat u re ev aluation be f ore mak ing the chas si s boar d
■ later on, to perform detailed temperature measurement s on the cha s sis board, in its real environment
Thermal data given in the data sheet allows an estimation of junction and case temperatures to be made.
For esti ma tion on pi n t emper a tur e, the fo llow i ng ad di ti on al da t a, deri ve d fr om a mea su reme nt on a t ypi ca l
chassis, can be used: R
Example of temperatures ESTIMATION:
(Remin de r: o nl y in t he ca se w he re t he cir cu it i s sol de red A BOVE th e c ha ssi s boar d in a rel ativ el y ' f ree ' en vironment).
Dissipated power: Pd = 1.3W.
Ambient temperature : Ta = 60°C (inside the TV set).
Juncti on temperature: Tj = Ta +
Case temperature: Tc = Tj Pins temperature: Tp = Tj -
given in the datasheet corresponds to the following condition:
thJA
R
~ 20°C/W;
thJP
R
* Pd = 125°C.
thJA
R
* Pd = 112°C.
thJC
R
* Pd = 99°C.
thJP
R
may increase ab o ve th e
thJA
may increase.
thJA
83/86
Page 84
STV224XH/228XH/223XH - SUMMARY OF CHANGES
11 SUMMARY OF CHANGES
Rev. Main Changes Date
1.0 First Issue. 15 Apr 2003
2.0 Added TQFP64, STV223XH version. 05 Feb 2004
2.1 TQFP64 thermal and mechanical data added, other minor corrections. 09 Apr 2004
2.2 Minor corrections, typos, alignment etc. 21 Apr 2004
84/86
Page 85
STV224XH/228XH/223XH - GENERAL PACKAGE INFORMATION
12 GENERAL PACKAGE INFORMATION
12.1 PACKAGE MECHANICAL DATA Figure 62. 56- Pin Shrink Plastic Dual In L ine Package, 600-mil Width
A 6.35 0.250
A1 0.38 0.015
A2 3.18 4.95 0.125 0.195
b 0.41 0.016
b2 0.89 0.035
C 0.20 0.38 0.008 0.015
D 50.29 53.21 1.980 2.095
E 15.01 0.591
E1 12.32 14.73 0.485 0.580
e 1.78 0.070
eA 15.24 0.600
eB 17.78 0.700
L 2.92 5.08 0.115 0.200
N56
PDIP56S
Figure 63. 64-Pin Thin Quad Flat Package
Number of Pins
85/86
0.10mm
.004
L1
L
K
A 1.60 0.063
A1 0.05 0.15 0.002 0.006
A2 1.35 1.40 1.45 0.053 0.055 0.057
B 0.30 0.37 0.45 0.012 0.015 0.018
C 0.09 0.20 0.004 0.008
D 16.00 0.630
D1 14.00 0.551
D3 12.00 0.472
E 16.00 0.630
E1 14.00 0.551
E3 12.00 0.472
e 0.80 0.031
K 0° 3.5° 7°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
Number of Pins
N 64 ND 16 NE 16
Page 86
Notes:
STV224XH/228XH/223XH - GENERAL PACKAGE INFORMATION
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics.
2
Purchase of I
C Components by STMicroelectronics conveys a license under the Philips I2C Patent. Rights to use these components in an
2
I
C system is granted provided that the system conforms to the I2C Standard Specification as defined by Philips.
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy
- Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners
„2004 STMicroelectronics - All Rights Reserved.
STMicroelectronics Group of Companies
www.st.com
86/86
Page 87
This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.
Loading...