Datasheet NTE7150 Datasheet (NTE)

Download

Page 1

NTE7150

Integrated Circuit

Video, Chroma, and Sync. Signal Processing Circuit

for PAL/NTSC/SECAM System Color Televisions

Description:

The NTE7150 is an integrated circuit in a 64–Lead SIP type package designed for PAL/NTSC/SECAM system color televisions involving video, chroma, and sync. signal processing circuits.

The video section contains a high–performance picture quality emphasis circuit, the chroma section contains a PAL/NTSC/SECAM system automatic identification circuit, and the sync. section contains a 50/60Hz automatic identification circuit. The PAL/SECAM demodulating circuit uses a baseband signal processing system, providing an adjustment–free demodulating circuit. User control functions, system switching, etc. are controlled via the I2C bus.

Features: Video Section

D Sharpness Control with Internal Delay Lines D Black Stretching Circuit D YNR D Variable DC Restoration Ratio D Gamma (g) Contrast Correction

Chroma Section

D PAL/SECAM baseband Demodulation System D Automatic Srystal Frequency Identification (4.43MHz/3.58MHz/M, N–PAL) D Automatic Chroma System Identification (PAL/NTSC/SECAM) D PLL SECAM Adjustment–Free Demodulation Circuit without and Tank Coils D Built–In SECAM BELL Filter

Sync. Section

D Adjnustment–Free Horizontal and Vertical Oscillation Circuits based on Countdown System D Automatic Vertical Frequency Identification (50/60Hz)

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, V

Power Dissipation, PDmax 2660mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Derate Above 25°C 21.2mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Signal Amplitude, e Applied Voltage, E

Operating Temperature Range, T Storage Temperature Range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GND–0.3V to VCC+0.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

opr

stg

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +65°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Operating Conditions:

Parameter Test Conditions Min Typ Max Unit

Supply Voltage At Pin19, Pin36, Pin50, and Pin59 8.1 9.0 9.5 V

At Pin5 8.1 9.0 10.0 V At Pin4 3.0 3.3 3.6 V

15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P–P

Page 2

Recommended Operating Conditions (Cont’d):

Parameter Test Conditions Min Typ Max Unit

Video Input Signal Level Composite Video Signal Amplitude 0.7 1.0 1.2 V Chroma Input Signal Level PAL/NTSC Chroma Input 100 200 300 mV

SECAM Chroma Input 50 100 150 mV Sync Input Signal Level Composite Video Signal Amplitude 1.0 2.0 2.5 V Text Input Signal Level 0.5 0.7 1.0 V FBP Width 11 12 13 µs FBP Input Current 0.3 1.0 1.3 mA RGB Output Current – 1.0 2.0 mA H. Out Output Current – 3.0 5.0 mA VP Output Current – 1.0 2.0 mA

DC Characteristics: VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Supply Current

Logic VCC (Pin4) = 3.3V

Video/Chroma VCC Turned OFF 15 30 40 mA

H. VCC (Pin5) = 9V

Video/Chroma VCC Turned OFF 15 30 40 mA TEXT Section VCC (Pin19) = 9V 15 31 44 mA SECAM Section VCC (Pin36) = 9V 10 18 25 mA Chroma Section VCC (Pin50) = 9V 12 27 38 mA Video Section VCC (Pin59) = 9V 17 37 52 mA

Terminal Voltage Pin2 7.2 7.4 7.8 V

Pin16, Pin17, and Pin18 (In Mute Mode) 1.7 2.0 2.3 V Pin22, Pin23, and Pin24 (Uni–Color DAC center) 3.3 3.8 4.2 V Pin63 (Apply 5V with 5.1kΩ Resistor, Measure DC Output

Voltage at T race Period)

10 20 28 mA

3.1 3.5 3.9 V

P–P

P–P P–P P–P

AC Characteristics: VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Video Section

Y Input Dynamic Range

Upper Measure dynamic range above the pedestal level 0.7 1.0 1.3 V

Lower Measure dynamic range below the pedestal level 0.0 0.3 0.5 V Y Input Impedance Measure input impedance of Pin60 100 130 – kΩ Y Input Clamp Voltage Measure DC voltage at Pin60 when Y input

connected to AC GND. Maximum Y Gain 15.0 17.5 23.0 dB Y Frequency Bandwidth 8 10 15 MHz Black Stretching Amp Maximum Gain 1.3 1.4 1.5 Black Stretching Start Point 40 50 65 IRE DC Restoration Ratio 97 100 103 % Black Stretching Start Voltage 3.2 3.3 3.6 V Delay Time of Sharpness Circuit Measure difference in Y output signal delay time

between sharpness SW turned ON and OFF.

2.5 2.8 3.1 V

115 125 135 ns

P–P P–P

Page 3

AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Video Section (Cont’d)

Sharpness Control

Maximum Gain Center Gain Minumim Gain

Input 2T pulse VBS to TP60 and TP63. Measure 2T pulse output gain of data = 3FH, 20H, and 00H. 0dB is equal to the output gain of sharpness

00H. 0dB is equal to the output gain of sharpness SW OFF.

YNR Gain –20 –13 –8 dB Contact Control

Center Gain Minimum Gain

Measure Y output gain of data = 40H and 00H. Maximum Y gain is 0dB.

g Point

g Gain

Y Signal to Noise Ratio 50 55 60 dB Chroma Section 1 (PAL/NTSC) ACC Output Characteristics

e300 e100

Input rainbow signal whose burst and chroma signal level is 300mV

and 100mV

P–P

Measure sugnal amplitude at Pin41. ACC Flatness 3300/e100 0.9 1.0 1.1 Killer–On Level

PAL

NTSC

Input color bar signal. Measure burst amplitude

at which color begins to disappear when burst is

gradually reduced. Killer–Off Level

PAL

NTSC

Input color bar signal. Measure burst amplitude

at which color begins to be tinted when burst is

gradually increased from 0. APC Pull–In Range

3.58MHz fo = 3.579545MHz ±300 ±500 ±1000 Hz

4.43MHz fo = 4.433619MHz ±300 ±500 ±1000 Hz M PAL fo = 3.575611MHz ±300 ±500 ±1000 Hz

VCXO Freq Control Sensitivity

4.43MHz

3.58MHz

Fix X–tal mode with bus. Measure frequency

changes at TP28 when varying TP26 voltage

from 6.2V to 6.3V.

M PAL

fsc Output Amplitude

4.43MHz

3.58MHz

Fix X’tal mode with bus. Measure signal

amplitude at TP28. fsc Output Voltage

4.43MHz

3.58MHz

Fix X’tal mode with bus. Measure DC voltage at

TP28. B–Y Output Amplitude

4PAL

3NTSC

Input rainbow signal. Measure signal amplitude

at Pin41.

3.5 5.5 7.5 dB

0.5 1.5 3.5 dB

–3 –1 +1 dB

–4.0 –5.5 –7.0 dB

–17 –19 –21 dB

40 50 60 IRE 80 90 100 IRE

–1 –3 –5 dB –4 –6 –8 dB

260 370 520 mV 260 370 520 mV

0.2 0.5 1.0 mV

1.0 2.5 4.0 mV

P–P P–P

1.7 2.4 3.2 Hz/mV

1.5 2.2 3.0 Hz/mV

1.8 2.5 3.3 Hz/mV

130 150 170 mV 120 140 160 mV

P–P P–P

3.6 3.9 4.2 V

2.8 3.1 3.4

260 370 520 mV 260 370 520 mV

P–P P–P

Page 4

AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Chroma Section 1 (Cont’d) (PAL/NTSC)

R–Y Output Amplitude

4PAL

3NTSC

Input rainbow signal. Measure signal amplitude

at Pin40. Relative Amplitude

4PAL

Input rainbow signal. Measure (R–Y)/(B–Y).

3NTSC 0.73 0.8 0.9

Relative Phase

4PAL/4NTSC

Input rainbow signal. Measure q(R–Y)/q(B–Y).

3NTSC 85 90 95 DEG Chroma Demodulation Bandwidth 0.5 0.8 1.5 MHz Residual Carrier Level

B–Y

R–Y

Measure residual carrier waves (fsc frequencies) on Pin40 and Pin41.

Residual Harmonics Level

B–Y

R–Y

Measure residual higher harmonics (double the fsc frequency) on Pin40 and Pin41.

TINT Control

TINT Maximum

TINT Center

Input NTSC rainbow signal. Measure TINT of data = 00H, 40H, and 7FH. TINT 0° is when the 6th bar of B–Y is maximum.

the 6th bar of B–Y is maximum.

TINT Minimum PAL/NTSC Color Difference

Amplitude Adjustment Gain

Identification Output

PAL

Measure output voltage from Pin39. SECAM 4.3 4.6 4.9 V NTSC 0.0 0.1 0.4 V

Chroma Section 2 (SECAM) Color System Identification Mode

Switch Threshold Voltage

Measure voltager at Pin44 at which SE CAM signal

becomes unable to be demodulated when the DC

voltage applied to TP44 is varied from 6V to 0V.

ACC Characteristics

Input Id 150mV

Input Id 50mV

P–P

V32 = 1V. Measure ident amplitude at Pin28

Killer–On Level

Ident Data = 0

Ident Data = 1

Input color bar signal. Measure burst amplitude

at which color begins to disappear when burst is

gradually reduced.

B–Y Output Amplitude Input color bar signal. Measure output amplitude

at Pin41.

R–Y Output Amplitude Input color bar signal. Measure output amplitude

at Pin40.

BELL Monitor Switch Threshold

Voltage

BELL Filter Characteristics

Ident Ratio 0.9 1.0 1.1 Cyan Bar 1.00 1.15 1.30 Yellow Bar 1.10 1.25 1.40

220 315 440 mV 220 315 440 mV

0.73 0.8 0.9

85 90 95 DEG

0 3 5 mV 0 3 5 mV

0 20 30 mV 0 20 30 mV

27 32 39 DEG

–12 –4 +8 DEG –39 –44 –49 DEG

–2 –1 –0.5 dB

8.0 8.3 8.6 V

4.7 5.0 5.3 V

220 280 340 mV 220 280 340 mV

0.1 1.0 3.0 mV

400 580 750 mV

450 680 950 mV

1.5 1.8 2.1 V

P–P P–P

P–P P–P P–P

P–P

Page 5

AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Chroma Section 2 (Cont’d) (SECAM)

BELL Filter fo Control Range Data = 07 70 105 140 kHz

Data = 00 –175 –140 –105 kHz

PLL Pull–In Range High 4.75 5.0 5.5 MHz

Low 3.0 3.7 3.9 MHz Black Level Offset Voltage –15 0 +15 mV Black Level Offset Adjustment

Maximum 19 24 29 mV

Minimum –31 –28 –25 mV

SECAM Color Difference Amplitude

Adjustment Gain

TEXT/Matrix Section

RGB Maximum Output Measure maximum output voltage from Pin16

when WPL is OFF Color Difference Input Dynamic

Range

Relative Amplitude Input PAL rainbow signal. Measure G/B in the

Relative Phase Input PAL rainbow signal. Measure q (G) – q (B)

Color Control Characteristics

Maximum Gain 18.0 19.5 21.0 dB Center Gain –9 –7 –5 dB Minimum Gain –80 –50 –40 dB Maximum Gain Voltage 3.2 3.5 3.8 V Minimum Gain Voltage 2.2 2.5 2.8 V

Contrast Control Characteristics

Maximum Gain 3.5 5.0 6.5 dB Minimum Gain –16 –14 –12 dB Maximum Gain Voltage 2.2 2.5 2.8 V Minimum Gain Voltage 1.2 1.5 1.8 V

Brightness Control Characteristics

Maximum Voltage Center Voltage Minimum Voltage Control Voltage Measure DC v o l t a g e a t P i n 1 8 d u r i n g t r a c e p e r i o d

Brightness Tracking Measure DC voltage difference between R, G,

WPL Voltage Measure maximum output voltage from Pin18

Measure input dynamic range at Pin37 and Pin38

color difference output mode selected by bus on RGB output pins.

in the color difference output mode selected by bus on RGB output pins.

No Y input (AC GND). Data = FFH. Measure DC voltage at Pin18 during trace period. Data = 80H. Measure DC voltage at Pin18 during trace period. Data = 00H. Measure DC voltage at Pin18 during trace period.

when V53 = 1V. Measure DC v o l t a g e a t P i n 1 8 d u r i n g t r a c e p e r i o d

when V53 = 1V.

and B outputs of brightness data = 40H.

when WPL is ON.

–1.0 –1.8 –2.5 dB –2.0 –1.0 –0.5 dB –0.5 0 +0.5 dB

0.5 1.0 1.5 dB

7.3 7.7 8.8 V

1.6 2.0 2.3 V

0.31 0.37 0.42

230 237 245 DEG

3.2 3.5 3.8 V

1.8 2.0 2.2 V

0.2 0.5 0.8 V

0.7 1.0 1.3 V

2.7 3.0 3.3 V

–0.2 0 +0.2 V

5.7 6.0 6.3 V

P–P

Page 6

AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

TEXT/Matrix Section (Cont’d)

Blanking Output Voltage Measure output voltage from Pin18 during

blanking period.

Vertical Blanking Period

50Hz

Measure vertical blanking period width.

60Hz – 18 – H

Horizontal Blanking Threshold

Voltage

Measure lowest voltage at Pin9 which causes horizontal blanking.

Horizontal Blanking Delay Time Measure blanking–on delay time. 0.0 0.1 0.3 µs

Measure blanking–off delay time. 0.1 0.3 0.5 µs

External Blanking Threshold Current Measure minimum input current to Pin64 which

causes blanking. Mute Output Voltage 1.7 2.0 2.3 V Mute Switch Threshold Voltage 4.7 5.0 5.3 V External TEXT Input Dynamic

Range

Measure input dynamic range on Pin22, Pin23,

and Pin24. External TEXT Contrast Control

Maximum Gain

Center Gain

Input signal 3 (Vim = 0.1V

) to TP24. Measure

P–P

output amplitude at Pin18 when data = 7FH,

40H, and 00H as V . Gain = 20log (V /0.1).

40H, and 00H as V18. Gain = 20log (V18/0.1).

Minimum Gain External TEXT Rising Time External TEXT Falling Time

Load capacitance is 10pF. Adjust contrast data so that RGB output amplitude is 1V

P–P

External TEXT Output Delay Time 10 25 50 ns External TEXT Switching Delay

Time TV/TEXT Switching Voltage 0.7 1.0 1.3 V Crosstalk

TV → TEXT –45 –55 – dB

TEXT → TV –45 –55 – dB External TEXT Bandwidth 12 15 20 MHz All White Mode Output Voltage

R Output

G Output

Select all–white mode by bus. Measure R, G, and B amplitudes during trace period.

B Output 3.6 3.8 4.0 V

Sync. Section

Horizontal Sync Separation Level 30 35 40 % Sync Separation Input Sensitivity 10 18 25 µA Horizontal Free Running Frequency measure H.out frequency when no sync input

and no FBP input.

AFC1 Pull–In Range

High Center frequency is fH = 15.625Hz 500 750 1000 Hz

Low –500 –750 –1000 Hz Horizontal Oscillation Frequency

Control Range

Horizontal Oscillation Frequency

Control Sensitivity

AFC1 Detection Current 250 350 450 µA

0.3 0.5 0.8 V

– 23 – H

0.5 0.7 1.0 V

300 330 400 µA

1.0 1.5 – V

P–P

15 16 18 dB

12.0 13.5 15.0 dB –7 –4 –2 dB 10 25 50 ns 10 25 50 ns

10 25 50 ns

3.6 3.8 4.0 V

3.5 3.7 3.9 V

P–P P–P P–P

15.50 15.62 15.75 kHz

14.70 15.62 16.90 Hz

2.0 2.3 2.6 kHz/V

Page 7

AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)

Parameter Test Conditions Min Typ Max Unit

Sync. Section (Cont’d)

AFC1 Stop Period

50Hz

60Hz

Horizontal Oscillation Starting

Voltage 3.5 4.0 4.5 V Horizontal Output Starting Voltage 4.0 4.5 5.0 V Horizontal Output Duty Cycle Measure duty cycle = (High period) / (1H period)

Horizontal Output Voltage

High Measure high voltage at Pin6 4.7 5.0 5.3 V

Low Measure low voltage at Pin6 – 0 0.3 V AFC2 Control Range 14 15 16 µs Horizontal Phase Adjustment Range ±2.0 ±2.5 ±3.0 µs Vertical Free Running Frequency Measure output frequency at Pin64 when no

Vertical Pull–In Range 240.5 – 352.0 H Vertical 60Hz Identification Range 240.5 – 288.0 H Vertical Pulse Output Voltage

High Measure high voltage at Pin64. 4.2 4.5 4.8 V

Low Measure low voltage at Pin64 – 0 0.3 V Vertical Blanking Pulse Output

Voltage

Vertical Output Delay Time

50Hz 4.25 4.75 5.25 H

60Hz 0.25 0.75 1.25 H Vertical Output Phase Variable

Range

SCP Output Voltage

Clamp Gate Pulse Period 7.3 7.5 7.8 V Horizontal Blanking Period 4.2 4.5 4.8 V Vertical Blanking Period 2.2 2.5 2.8 V

FBP Input Terminal Voltage

High Low

Gate Pulse Width 1.8 2.0 2.2 µs

Observe Pin2 to measure the period while AFC1 does not operate.

at Pin6

sync signal input.

Measure middle voltage at Pin64 2.7 3.0 3.3 V

Sync input 60Hz, data = 000, 111 0 – 7 H

Sink current into Pin9 is kept at 0.1mA when measured. Mwasure high and low voltages at Pin9.

308 ∼ 6 H 258 ∼ 6 H

38 41 44 %

– 50/60 – Hz

1.1 1.5 1.8 V – 0 0.3 V

Page 8

Pin Connection Diagram

Vertical Separation

Horizontal AFC1

32fH VCO

I2L V

Horizontal V

Horizontal Output

DAC Monitor

I2L/Horizontal Out GND

External R Input

External G Input

External B Input

QIF InputAPC

SECAM GND

SECAM f

B–Y De–Emphasis

SECAM Ident

R Clamp

SDA

SCL

R Output

TEXT V

ACL

fsc Output

1 2 3 4 5 6 7 8Horizontal AFC2 9FBP Input 56

10SCP Output 11

15GND 50 16

17G Output 18B Output 19 20G Clamp

22 23

27 38 28 37 29 36

31 34 32R–Y De–Emphasis 33

VP Output

Sync Input

63 62

Video GND

61 Black Detection 60 Video Input

Video V

59 58 57

55 54

49 4.43 Chroma Input 48 B Clamp 47 46 45

43 42

APL1 APL2 Gamma Voltage FAA P/N ACC ABL12 53 Y Clamp13

3.58 Chroma Input14 51 Chroma V

PAL Ident Chroma GND

3.58 X’tal M/N X’tal21TV/TEXT 44

4.43 X’tal NTSC Ident B–Y Output24 41 R–Y Output25 40 P/N/S Identification Output26 39 B–Y Input R–Y Input SECAM V SECAM Input30 35 BELL f SECAM ACC

64 33

132

2.270 (57.65) Max

.708 (18.0)

Min

.236 (6.0) Max

.106 (2.7) Min.070 (1.78)

.750 (19.0)