SGS Thomson Microelectronics STV2216 Datasheet

STV2216

BUS CONTROLLEDNTSC/PALTV PROCESSOR

I2C BUS CONTROLOF ALLFUNCTIONS

INTEGRATEDFILTERS(TRAP, BANDPASS)

INTEGRATEDLUMINANCE DELAYLINE

NTSC CHROMA DEMODULATOR WITH AUTOMATICFLESH TONE

PALDEMODULATOR

AUTOMATICCUT-OFF CURRENT LOOP

ONE RGB INPUT

SVHSSWITCH

TWOPLLs HORIZONTAL DEFLECTION

VERTICALCOUNTDOWN

XRAYPROTECTION

BLACK STRETCH

BLUESCREEN

VERYFEW EXTERNALCOMPONENTS

DESCRIPTION

The STV2216 is a fully bus controlled IC for TV luma, chromaand deflectionprocessing.

PIN CONNECTIONS

ACC SDA SCL

ECS VOL

SWI

BSC

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

CHROMA/SCANNING GROUND

3.58MHz XTAL

4.43MHz XTAL

CHROMA LOOP FILTER

ACC CONTROL CAPACITOR

DATA WIRE I

CLOCK WIRE I

EXTERNAL CRYSTAL SELECTION

VOLUME AND MUTE CONTROL VOLTAGE

IF STANDARD AND SWITCH SELECTION

OSD GREEN INPUT

NOT TO BE CONNECTED

BLACK STRETCH FILTER

CVBS OR LUMINANCE INPUT

C BUS

FILTER TUNING

OSD BLUE INPUT

OSD RED INPUT RGB INSERTION

ACC OVERLOAD

XRAY INPUT

GND2 V CXTL2 CXTL1

CLPF

FTUN1

BOSD GOSD

ROSD

FBOSD

ACCO

XRAY

Y/CVBS

GND1

Used with STV8223 (PIF/SIF/switches),TDA1771 orTDA8174(framebooster),STV2180(delayline), it allows to design a PAL/NTSC (BGDKIMN) set with very few external components and no adjustment.

SHRINK42

(Plastic Package)

ORDER CODE :

CC2

BYO

RYO

RYI

BYI

LFB/SC

HOUT

VOUT

VAMP

SLPF

SXTL

BCL

ICAT

CHR/SVHS V

CC1

CHROMA/SCANNING/BUS SUPPLY B-Y OUTPUT R-Y OUTPUT R-Y INPUT B-Y INPUT LINE FLYBACK INPUT/SANDCASTLE OUTPUT HORIZONTAL OUTPUT VERTICAL OUTPUT AMPLITUDE CONTROL VOLTAGE SCANNING LOOP FILTER 503kHz CERAMIC BEAM CURRENT LIMITER CATHODE CURRENT MEASUREMENT RED OUTPUT GREEN OUTPUT BLUE OUTPUT RED CUT-OFFCAPACITOR BLUE CUT-OFF CAPACITOR GREEN CUT-OFF CAPACITOR CHROMINANCE INPUT/SVHS SELECTION VIDEO SUPPLYBUS/VIDEO GROUND

STV2216

2216-01.EPS

May 1997

1/26

STV2216

BLOCKDIAGRAM

ICAT

292827

BCL

VOUT

VAMP

HOUT

OSD

FB R G B

R-Y B-Y

STV2216

15 14 13 12

CONTROL

BLANKING

AUTOCUT-OFF

BLACK& WHITE

BLUE SCREEN

RGBSWITCHES

MATRIX

CONTRAST

SATURATION

BRIGHTNESS

FRAME

SCANNING

VIDEO

IDENTIFICATION

CUT-OFF DRIVE STD

CONT SAT BRIG

HUE SHARP

XRAY

DETECTOR

LINE

SCANNING

BUS

DECODER

6 7 11 10

21 1 373332

XRAY

INPUT

LFB/SC

SXTAL SLPF

SDA SCL

GND2 SWI VOLCLPF R-Y B-Y

GND1

2/26

FILTER

CC2

CC1

FILTER

TUNING

BLACK

STRETCH

SYNC

SEPARATOR

PAL

DEMODULATORS

LINE

22 42 39 38

DELAY

SHARPNESS

FILTERTUNING

TRAP BANDPASS

Y/CVBS

SVHSSWITCH

CHR

STANDARD

IDENTIFICATION

ACC

CHR

ACC

EXTERNAL

OVERLOAD

XTAL SELECT.

NTSC

DELAY LINE INTERFACE

DEMODULATORS

FLESH CONTROL

KILLER

PAL/NTSC

PLL

CXTAL2

CXTAL1

44041

2216-02.EPS

STV2216

FUNCTIONAL DESCRIPTION 1 - DEFLECTION CIRCUIT (Note: [X,Y]: line numberreferred to the internal line counternumbering)

- Fully integratedsynch. separator, with a low pass filter,a blacklevelalignmentof the Y/CVBSinput,a slicing levelat2/3,1/3of thesync.pulseamplitude.

- Frame sync. pulse locked on 2 f

frequency to

perfect interlace.

- 500kHzVCO with an externalceramicresonator.

- Two phaselocked loops

• the first PLL locks the VCO on the videosignal

frequency,

• the secondPLLcompensatestheline transistor

storage time.

- Three time constantsfor the first PLL.

•

thelongtimeconstantisusedfornormaloperation

• the short time constant is automatically used

duringthe frameretrace andin searchmodeof VCRwhen the frame pulseis outside[258,264] and [309,314].

•

verylongtimeconstantwhennovideorecognition

Timeconstants in normaloperation (automaticselection of time constants):

50Hz input signal :

- short time constant : [306,21]

- long timeconstant : the rest of thefield 60Hz input signal :

- short time constant : [0, 16]

- long timeconstant : the rest of thefield

• inhibitionof the first PLL:

the first locked loop is openedfrom line 309 to line4.5(or 314)in 50Hzmode.It isopenedfrom line 258 to line 5.5 (or264) in 60Hzmode.

•

thetimeconstantsvaluesare chosenby means of external components.

•

possibility to force the short time constant throughthe bus.

• possibility to force the very long time constant

throughthe bus.

- Video identification : coincidence detector between the line synchro top and a line frequency windowfromthefirstPLL.The videoidentification status isavailablein theoutputregisterof theI

bus decoder.

- Generation of burst gate pulses and line frequency signals from the first PLL to drive the chroma and video circuits. The burst gate pulse is alsosent to the sandcastlegenerator.

- Frame synchro window : [248, 352] catching

- Fieldfrequencyselection windows : [248, 288] 60Hz mode selection if two

consec utive f rame pulses occur inside this window,otherwise 50Hz modeselection.

[288, 352] 50Hz modeselection window

- frameblanking pulse : fromline 0 to 21 in 50Hz mode fromline 0 to 16 in 60Hz mode

- Verticaloutput pulseis 10.5 lines long.

- Horizontal output pulse : 28µs line pulse on an open collector output;

- Start up circuit: the horizontaloutputis at a high level when V

increases from 0 to 6.8V. On

shutting down, horizontal pulses are disabled when V

isbelow 6.2V.

- Soft-start circuit : the duty cycleof the horizontal outputis 78% (Thigh/(Thigh+ TLow))when V is lowerthan(0.75 x V

),during therising time.

CC2

During the falling time, a 78% duty cycle HOUT pulse is provided when V (0.60 x V

CC2

is lower than

CC1

- Possibility to disable the horizontal output pulse through the bus (forcea high level on HOUT).

- XRAYprotection.

- Horizontalposition adjustmentcontrolled by bus.

- Buscontrolledoutputvoltageto adjustthevertical amplitude;thisvoltagepermitstoadjusttheslope of theverticalsawtoothgeneratedby theexternal framebooster.

- Bus controlledvertical position ; the high level of the vertical pulse permits to adjust the vertical position.

- Bus controlled 4/3-16/9 selection : the low level of theverticalpulseis 0.1Vwhen16/9isselected, 2V when4/3 is selected.

- Combined flyback input and sandcastle output (Pin 37). Two thresholdson LFB/SCOPin : The lowestthreshold(0.7V) permitsto extractthe line blankingpulse;thehighestthreshold(2V)permits to extractthe line pulse forPLL2.Thesandcastle signal at Pin 37 is used to control the external basebandchroma delay line.

CC1

3/26

STV2216

FUNCTIONAL DESCRIPTION(continued) 2 - FILTERS

- Integratedtrap filter :

−3dB

−

Q =

Centerfrequency: 4.43MHz,

3.58MHzfor PAL,NTSC

- Integratedchromabandpass :Q = 3.5 Center frequency: 4.43MHz,3.58MHz

- Integrateddelay line : Bandwidth= 8MHz

- Integratedlow pass filterfor deflectionpart.

- All filters are tuned with a referencephase locked loop.ThePLLconsistsof a lowpassfilter,a phase comparator,a loop filter (with an externalcapacitor).Thereferencesignal is the continuouscarrier wave from the VCO (4.43MHzor 3.58MHz). The PLLadjuststhecenterfrequencyofthelowpassso that it is equal to thereferencesignal.The tuning voltageof thePLLis usedto adjustallotherfilters.

3 - VIDEOCIRCUIT

- 1 analogRGBinputwithfixedgain.Itmaybe used for OSD, Text,...

- Oversizeblanking capabilityon FB(OSD)(Pin15) input. The RGBouputswill be blanked whenthe voltage on Pin15 will exceed thesecond threshold at 2V (blankingthreshold) : the whole field is blanked but not the inserted cut-off pulses. The OSD insertion threshold is 0.7V.

Q = 2.5 at sharp. min

- Automatic cut-off current loop : 2V cut-off range. Sequential cut-off current measurement during the three lines after the frame blanking signal. Leakage current measurement during the frame blanking, memorizationon an internalcapacitor.

- Possibility to force through the bus the inserted cut-off pulses on lines 23/24/25(CCIR) in 50Hz and 60Hz mode. This will increase frame blanking time in 60Hz mode.

- Warm up detector.

- Beam current limiter DC voltageinput. The beam current limiter control voltage will act on contrast first, then the brightness will be decreasedwhencontrastattenuationreaches-5dB.

- Bus control of the red, green and blue channel gain (White point adjustment)

- Bus controlof theredand greenDC levels (black point adjustment)

- PALmatrix,specificNTSC matrix whendemodulation angles are (0

, 104o).

- Switch-offof the trap filterin SVHS mode.

- Bus controlledcontrast on luminance (20dB range)

- Bus controlledsaturation (50dB range)

- Bus controlled brightness : 40% range at maximum contrast.

- Bus controlledsharpness (peaking).

- Noise coringfunction on sharpness. Can bedisabled through thebus

- Bus controlledblue screen feature.

- Black stretcher.Can bedisabledthroughthebus.

4/26

FUNCTIONAL DESCRIPTION(continued) 4 - CHROMA CIRCUIT

4.1 - PAL/NTSCDecoders

- SVHSinputs ; bus controlledSVHS mode.

- 30dB rangeACC

- Use o f a n external base b and de lay line (STV2180 recommended)

- Automaticstandard identification,with possibility to force the standardthroughthe bus.

- ACC done by peak detector on synchronousdemodulationof the burst

- ACC overload.

- Fully integrated killer functions.

- VCO using two standard crystals : 4.43MHz and

3.58MHz. One crystal is internally selected depending on the standardselection.

- 3 crystals application capability : one crystal on Pin XTAL1 (4.43MHz or 3.58MHz), two crystals on Pin XTAL 2 (3.58MHz only) which can be selected by Pin 9 out signal.

XTALSPECIFICATION : Frequency MotionalCapacity

4.433619MHz(PAL)

3.579545MHz(NTSCM)

3.575611MHz(PALM)

3.582056MHz(PALN)

13fF± 3fF 11fF±3fF 9fF ± 1fF 10fF±2fF

Vibrationmode : Fondamental,seriesresonance (no serial capacitor) Resonanceresistance : < 70Ω Shuntcapacitance : < 7pF

Spuriousresponse: No resonanceat 3*f

and ±90odemodulationangles for PAL

-0

-(0

,90o)or(0o,104o) = demodulation angles for

NTSC. The selection of 90

or 104ois made

3kHz

throughthe bus.

- Bus control Hue adjustment in NTSCmode.

- NTSC Automatic Flesh control. Bus controlled disable. Two automatic flesh control charac-

STV2216

teristics : the firstone with ±20 total action range of±90

maximumcorrectionandatotalactionrange

±12

of±60

. The selection of the flesh characteristic

is buscontrolled.

- Switchable Chromademodulatorgain (+6dB) for NTSConly application,when no externalchroma delay line is used.

4.2 - StandardIdentification

- 3 identification sequences : XTAL1 (crystal on Pin 3), XTAL2-1 (first crystal on Pin 2), XTAL2-2 (secondcrystalonPin 2).Parallelidentificationof PALand NTSC.

- Blanking of the (R-Y) and B-Y) outputs during color search mode.

5 - OTHERFUNCTIONS :

5.1 - VolumeControl and Mute

Thevolume controlvoltage rangeon Pin10 isfrom

0.5V to 5V. A low voltage on Pin 10 (below 0.1V)

will put the volume to minimum and mute the FM demodulatorofthe IFcircuit(STV8223).Thusthere will be no soundeither on the speaker or anaudio output plug.

The volumecontrol voltage and themute level are controlledby the bus.

5.2- TV/ExternalModeSelection

The selectionof theTV/External(AV) mode is controlledbythe bus.The selectionis convertedin two voltageson Pin 11.

The lowest voltage selects the TVmode. The highest voltage (open collector output with

internal pull-up resistor to V nal (AV)mode.

correctionand a

, the second one with

IF CONTROLS

) selects the Exter-

5/26

STV2216

I2C BUS SPECIFICATION GeneralComments SlaveAddress : 8A(HEX) (1000101X)

WRITEMODE DATAFORMAT

Slave Address Register Address Data

1000 1010 (8A) XXXS SSSS (from 00 to 11HEX) XXSSSSSS (6 significantbits Max.)

Thenot used bits in data bytemust be put to ”0”.

READ MODEDATAFORMAT

Slave Address Data

1000 1011 (8B) SSSS SSSS (8 significant bits)

MSB on the left, LSB on the Right.

MSB LSB

XXXXXXXX

X: not significantbit - S : significant bit

InputSignals

(Write Mode)

VIDEO

Address

Dec (HEX)

0 (00) Contrast 5 XXX0 0000 = -20dB

0 (00) Not used 1 XXSX XXXX 0 = defaultvalue 1 (01) Saturation 6 XX00 0000 = -44dB

2 (02) Brightness 5 XXX0 0000 = -20%

2 (02) RGB Outputs Blanking 1 XXSX XXXX 0 = Normal mode

3 (03) Red Drive Adjust(white point red adjust) 6 XX00 0000 = -6dB

4 (04) Red Cut-off Adjust 6 XX00 0000 = +150mV

5 (05) Green Drive Adjust (white point green adjust) 6 XX00 0000 = -6dB

6 (06) Green Cut-off Adjust 6 XX00 0000 = +150mV

7 (07) Blue Drive Adjust (white point blueadjust) 6 XX00 0000 = -6dB

8 (08) Sharpness 3 XXXX X000 = Peaking Min.

8 (08) Blue Screen 1 XXXX SXXX 0 = blue screen disable

8 (08) Third Crystal Selection

(This bit is not significant inautomatic color standard mode - data = 06Hex inregister 0AHex)

8 (08) Black Stretch Enable 1 XXSX XXXX 0 = disable

16 (10) Coring on Sharpness 1 XXXX SXXX 0 = Coring on

16 (10) Cut-off Pulse Position 1 XXXS XXXX

Description

Data

(Bits)

XXX1 1111 = 0dB

XX11 1111 = +6dB

XXX1 1111 = +20%

XX11 1111 = 0dB

XX11 1111 = -150mV

XX11 1111 = 0dB

XX11 1111 = -150mV

XX11 1111 = 0dB

XXXX X111 = Peaking Max.

1 XXXS XXXX

0 = low level on Pin 9 1 = high level on Pin 9

0 = lines 23/24/25 in 50z

lines 18/19/20 in 60Hz

1 = lines 23/24/25 both in 50Hz and 60Hz

Comments

1 = Blanking active

1 = blue screen enable

1 = enable

1 = Coring off

6/26

I2C BUS SPECIFICATION (continued) InputSignals (Write Mode) (continued)

CHROMA

Address

Dec (HEX)

Description

9 (09) Hue 6 XX00 0000 = -45

10 (0A) Standard Selection 4 XXXX SSSS

10 (0A) SVHS Selection 1 XXXS XXXX 0 = No SVHS (CVBS mode)

10 (0A) XTAL1 (Pin 3) Indication 1 XXSX XXX 0 = 4.43MHz Crystal on Pin 3

14 (0E) Chroma Demodulation Gain 1 XXXS XXXX 0 = 0dB

14 (0E) Flesh Control 1 XXSX XXXX 0 = Flesh control disable

16 (10) Flesh Characteristics 1 XXSX XXXX 0 = Narrow characteristic (± 12

Data

(Bits)

Comments

XX11 1111 = +45

0000 = PAL/XTAL1 (4.43MHz) 0001 = PAL/XTAL2 (3.58MHz) 0010 = NTSC/XTAL1/90 0011 = NTSC/XTAL2/90 1010 = NTSC/XTAL1/104 1011 = NTSC/XTAL2/104 011X = Auto/90

111X = Auto/104

o o

0100 = Not allowed 0101 = Not allowed 1000 = Not allowed 1001 = Not allowed 1100 = Not allowed 1101 = Not allowed

1 = SVHS mode

1 = 3.58MHz Crystal on Pin3

1 = +6dB

1 = Flesh control enable

1 = Wide characteristic (± 20

STV2216

)

DEFLECTION

Address

Dec (HEX)

Description

11 (0B) Horizontal Shift 6 XX00 0000 = -2.5µs

12 (0C) Vertical Amplitude 6 XX00 0000 = 1.2V

13 (0D) Vertical Position 3 XXXX X000 = 3.8V

13 (0D) 50/60Hz Selection 2 XXXS SXXX 00 = Auto

13 (0D) Horizontal Output (HOUT) Safety 1 XXSX XXXX 0 = Normal mode

14 (0E) PLL1 Time Constant 2 XXXX XXSS 00 = Normal mode (Auto)

14 (0E) Interlace 1 XXXX XSXX 0 = Interlace

14 (0E) 4/3 16/9 Selection 1 XXXX SXXX 0 = 4/3 (V

Data

(Bits)

XX11 1111 = +2.5µs

XX11 1111 = 6.2V

XXXX X111 = 6.3V

01 = 60Hz 10 = 50Hz 11 = Auto

1 = HOUT disabled (high level)

01 = Short time constant 10 = Very long time constant 11 = PLL1 inhibition (open loop)

1 = DE-Interlace

1 = 16/9 (V

Comments

OUT-Low

= 2V)

= 0.1V)

7/26

STV2216

I2C BUS SPECIFICATION InputSignals

(Write Mode) (continued)

(continued)

OTHERS

Address Dec (HEX) Description Data (Bits) Comments

15 (0F) Volume 6 XX00 0000= 0.5V 16 (10) Mute 1 XXXX XXXS 0 = Mute not active 16 (10) AV Switch Selection 2 XXXX XSSX 00 = TV mode

17 (11) Only for Test 6 XXSS SSSS 00 0000 = Test mode not active

OutputSignals

(ReadMode)

XX11 1111= 5V

1 = Mute active 01 = not allowed

10 = not allowed 11 = External (AV) mode

READ REGISTER

Description Data (Bits) Comments

Field Frequency 1 XXXX XXXS 1 = 50Hz Video Identification 1 XXXX XXSX 1 = No Identification SVHS Status 1 XXXX XSXX 1 = No SVHS Standard Status 3 XXSS SXXX 111 = PAL/XTAL1 (4.43MHz)

Circuit Identification 2 00XX XXXX 11 = STV2118B

0 = 60Hz 0 = Video Identification 0 = SVHS 110 = NTSC/XTAL1

101 = not to be used 011 = PAL/XTAL2 (3.58MHz) 010 = NTSC/XTAL2 X00 = Coloroff

10 = STV2116A 01 = STV2112B 00 = STV2216

Bus RegisterInitial Conditions

Address

Dec (HEX)

0 (00) XX01 0000 Mid. contrast ; Not used 1 (01) XX10 0000 Mid. saturation 2 (02) XX01 0000 Mid. brightness ; Blanking : normal mode 3 (03) XX10 0000 Mid. RED drive adjust 4 (04) XX10 0000 Mid. RED cut-off adjust 5 (05) XX10 0000 Mid. GREEN drive adjust 6 (06) XX10 0000 Mid. GREEN cut-off adjust 7 (07) XX10 0000 Mid. BLUE drive adjust 8 (08) XX10 0100 Mid. sharpness ; Blue screen not active ; External crystal selection in auto mode ;

9 (09) XX10 0000 Mid. hue 10 (0A) XX00 0110 Auto search color standard ; no SVHS ; XTAL1 = 4.43MHz 11 (0B) XX10 0000 Mid. horizontal shift 12 (0C) XX10 0000 Mid. vertical amplitude 13 (0D) XX00 0100 Mid. vertical position ; Auto search field frequency ; HOUT : normal mode 14 (0E) XX00 0000 PLL1 time constant : normalmode ; Interlace ; 4/3 selection ; chroma gain = +0dB ; no flesh 15 (0F) XX10 0000 Mid. volume 16 (10) XX00 0000 Mute not active ; INT/FM IF mode ; coring on ; Cut-off pulses on lines 23/24/25 in 50Hz or

17 (11) XX00 0000 Test mode not active

8/26

Data Initial

Value

Black stretch on

lines 18/19/20 in 60Hz ; narrow flesh characteristic

(Notused bits are preset to ”0”)

Comments

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