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, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Power Dissipation, PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2660mW Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2mW/°C Input Signal Amplitude, ein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5VP–P Applied Voltage, Ein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND–0.3V to VCC+0.3V Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +65°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Recommended Operating Conditions: Parameter Supply Voltage Test Conditions Min Typ Max Unit 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 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 VP–P Chroma Input Signal Level PAL/NTSC Chroma Input 100 200 300 mVP–P SECAM Chroma Input 50 100 150 mVP–P Composite Video Signal Amplitude 1.0 2.0 2.5 VP–P Text Input Signal Level 0.5 0.7 1.0 VP–P 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 Sync Input Signal Level DC Characteristics: VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Supply Current Test Conditions Min Typ Max Unit 10 20 28 mA 15 30 40 mA 10 20 28 mA 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 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 Trace Period) 3.1 3.5 3.9 V Logic VCC (Pin4) = 3.3V Video/Chroma VCC Turned OFF H. VCC (Pin5) = 9V Video/Chroma VCC Turned OFF Terminal Voltage AC Characteristics: VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Test Conditions Min Typ Max Unit Measure dynamic range above the pedestal level 0.7 1.0 1.3 VP–P Measure dynamic range below the pedestal level 0.0 0.3 0.5 VP–P 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. 2.5 2.8 3.1 V 15.0 17.5 23.0 dB 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 115 125 135 ns Video Section Y Input Dynamic Range Upper Lower Maximum Y Gain Y Frequency Bandwidth Delay Time of Sharpness Circuit Measure difference in Y output signal delay time between sharpness SW turned ON and OFF. AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Test Conditions Min Typ Max Unit 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 SW OFF. 3.5 5.5 7.5 dB 0.5 1.5 3.5 dB –3 –1 +1 dB –20 –13 –8 dB –4.0 –5.5 –7.0 dB –17 –19 –21 dB g Point Va 40 50 60 IRE Vb 80 90 100 IRE g Gain Ga –1 –3 –5 dB Gb –4 –6 –8 dB 50 55 60 dB Input rainbow signal whose burst and chroma signal level is 300mVP–P and 100mVP–P. Measure sugnal amplitude at Pin41. 260 370 520 mVP–P 260 370 520 mVP–P 3300/e100 0.9 1.0 1.1 Input color bar signal. Measure burst amplitude at which color begins to disappear when burst is gradually reduced. 0.2 0.5 1.0 mVP–P 0.2 0.5 1.0 mVP–P Input color bar signal. Measure burst amplitude at which color begins to be tinted when burst is gradually increased from 0. 1.0 2.5 4.0 mVP–P 1.0 2.5 4.0 mVP–P 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 1.7 2.4 3.2 Hz/mV 1.5 2.2 3.0 Hz/mV 1.8 2.5 3.3 Hz/mV Fix X’tal mode with bus. Measure signal amplitude at TP28. 130 150 170 mVP–P 120 140 160 mVP–P Fix X’tal mode with bus. Measure DC voltage at TP28. 3.6 3.9 4.2 V 2.8 3.1 3.4 V Input rainbow signal. Measure signal amplitude at Pin41. 260 370 520 mVP–P 260 370 520 mVP–P Video Section (Cont’d) Sharpness Control Maximum Gain Center Gain Minumim Gain YNR Gain Contact Control Center Gain Minimum Gain Measure Y output gain of data = 40H and 00H. Maximum Y gain is 0dB. Y Signal to Noise Ratio Chroma Section 1 (PAL/NTSC) ACC Output Characteristics e300 e100 ACC Flatness Killer–On Level PAL NTSC Killer–Off Level PAL NTSC APC Pull–In Range 3.58MHz 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 fsc Output Voltage 4.43MHz 3.58MHz B–Y Output Amplitude 4PAL 3NTSC AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Test Conditions Min Typ Max Unit Input rainbow signal. Measure signal amplitude at Pin40. 220 315 440 mVP–P 220 315 440 mVP–P Input rainbow signal. Measure (R–Y)/(B–Y). 0.73 0.8 0.9 0.73 0.8 0.9 85 90 95 DEG 85 90 95 DEG 0.5 0.8 1.5 MHz Measure residual carrier waves (fsc frequencies) on Pin40 and Pin41. 0 3 5 mVP–P 0 3 5 mVP–P Measure residual higher harmonics (double the fsc frequency) on Pin40 and Pin41. 0 20 30 mVP–P 0 20 30 mVP–P Input NTSC rainbow signal. Measure TINT of data = 00H, 40H, and 7FH. TINT 0°° is when the 6th bar of B–Y is maximum. 27 32 39 DEG –12 –4 +8 DEG –39 –44 –49 DEG –2 –1 –0.5 dB 8.0 8.3 8.6 V SECAM 4.3 4.6 4.9 V NTSC 0.0 0.1 0.4 V Measure voltager at Pin44 at which SECAM signal becomes unable to be demodulated when the DC voltage applied to TP44 is varied from 6V to 0V. 4.7 5.0 5.3 V V32 = 1V. Measure ident amplitude at Pin28 220 280 340 mVP–P 220 280 340 mVP–P Input color bar signal. Measure burst amplitude at which color begins to disappear when burst is gradually reduced. 0.1 1.0 3.0 mVP–P 0.1 1.0 3.0 mVP–P B–Y Output Amplitude Input color bar signal. Measure output amplitude at Pin41. 400 580 750 mVP–P R–Y Output Amplitude Input color bar signal. Measure output amplitude at Pin40. 450 680 950 mVP–P 1.5 1.8 2.1 V 0.9 1.0 1.1 Cyan Bar 1.00 1.15 1.30 Yellow Bar 1.10 1.25 1.40 Chroma Section 1 (Cont’d) (PAL/NTSC) R–Y Output Amplitude 4PAL 3NTSC Relative Amplitude 4PAL 3NTSC Relative Phase 4PAL/4NTSC Input rainbow signal. Measure q(R–Y)/q(B–Y). 3NTSC Chroma Demodulation Bandwidth Residual Carrier Level B–Y R–Y Residual Harmonics Level B–Y R–Y TINT Control TINT Maximum TINT Center TINT Minimum PAL/NTSC Color Difference Amplitude Adjustment Gain Identification Output PAL Measure output voltage from Pin39. Chroma Section 2 (SECAM) Color System Identification Mode Switch Threshold Voltage ACC Characteristics Input Id 150mVP–P Input Id 50mVP–P Killer–On Level Ident Data = 0 Ident Data = 1 BELL Monitor Switch Threshold Voltage BELL Filter Characteristics Ident Ratio AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Test Conditions Min Typ Max Unit Data = 07 70 105 140 kHz Data = 00 –175 –140 –105 kHz 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 –31 –28 –25 mV –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 Chroma Section 2 (Cont’d) (SECAM) BELL Filter fo Control Range PLL Pull–In Range Minimum SECAM Color Difference Amplitude Adjustment Gain TEXT/Matrix Section RGB Maximum Output Measure maximum output voltage from Pin16 when WPL is OFF 7.3 7.7 8.8 V Color Difference Input Dynamic Range Measure input dynamic range at Pin37 and Pin38 1.6 2.0 2.3 VP–P Relative Amplitude Input PAL rainbow signal. Measure G/B in the color difference output mode selected by bus on RGB output pins. 0.31 0.37 0.42 Relative Phase Input PAL rainbow signal. Measure q (G) – q (B) in the color difference output mode selected by bus on RGB output pins. 230 237 245 DEG 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 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 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. 3.2 3.5 3.8 V 1.8 2.0 2.2 V 0.2 0.5 0.8 V Measure DC voltage at Pin18 during trace period when V53 = 1V. 0.7 1.0 1.3 V Measure DC voltage at Pin18 during trace period when V53 = 1V. 2.7 3.0 3.3 V Brightness Tracking Measure DC voltage difference between R, G, and B outputs of brightness data = 40H. –0.2 0 +0.2 V WPL Voltage Measure maximum output voltage from Pin18 when WPL is ON. 5.7 6.0 6.3 V Color Control Characteristics Maximum Gain Contrast Control Characteristics Maximum Gain Brightness Control Characteristics Maximum Voltage Center Voltage Minimum Voltage Control Voltage AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified) Parameter Test Conditions Min Typ Max Unit Measure output voltage from Pin18 during blanking period. 0.3 0.5 0.8 V – 23 – H – 18 – H TEXT/Matrix Section (Cont’d) Blanking Output Voltage Vertical Blanking Period 50Hz Measure vertical blanking period width. 60Hz Horizontal Blanking Threshold Voltage Measure lowest voltage at Pin9 which causes horizontal blanking. 0.5 0.7 1.0 V 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 Measure minimum input current to Pin64 which causes blanking. 300 330 400 µA Mute Output Voltage 1.7 2.0 2.3 V Mute Switch Threshold Voltage 4.7 5.0 5.3 V Measure input dynamic range on Pin22, Pin23, and Pin24. 1.0 1.5 – VP–P Input signal 3 (Vim = 0.1VP–P) to TP24. Measure output amplitude at Pin18 when data = 7FH, 40H, and 00H as V18. Gain = 20log (V18/0.1). 15 16 18 dB 12.0 13.5 15.0 dB –7 –4 –2 dB 10 25 50 ns 10 25 50 ns External TEXT Output Delay Time 10 25 50 ns External TEXT Switching Delay Time 10 25 50 ns TV/TEXT Switching Voltage 0.7 1.0 1.3 V Crosstalk TV → TEXT –45 –55 – dB TEXT → TV –45 –55 – dB 12 15 20 MHz 3.6 3.8 4.0 VP–P 3.5 3.7 3.9 VP–P 3.6 3.8 4.0 VP–P Horizontal Sync Separation Level 30 35 40 % Sync Separation Input Sensitivity 10 18 25 µA 15.75 kHz External Blanking Threshold Current External TEXT Input Dynamic Range External TEXT Contrast Control Maximum Gain Center Gain Minimum Gain External TEXT Rising Time External TEXT Falling Time Load capacitance is 10pF. Adjust contrast data so that RGB output amplitude is 1VP–P. External TEXT Bandwidth 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 Sync. Section Horizontal Free Running Frequency AFC1 Pull–In Range High Low Horizontal Oscillation Frequency Control Range measure H.out frequency when no sync input and no FBP input. Center frequency is fH = 15.625Hz 15.50 15.62 500 750 1000 Hz –500 –750 –1000 Hz 14.70 15.62 16.90 Hz Horizontal Oscillation Frequency Control Sensitivity 2.0 2.3 2.6 kHz/V AFC1 Detection Current 250 350 450 µA 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 Observe Pin2 to measure the period while AFC1 does not operate. 308 ∼ 6 H 258 ∼ 6 H Horizontal Oscillation Starting Voltage 3.5 4.0 4.5 V Horizontal Output Starting Voltage 4.0 4.5 5.0 V Measure duty cycle = (High period) / (1H period) at Pin6 38 41 44 % Measure high voltage at Pin6 4.7 5.0 5.3 V Measure low voltage at Pin6 – 0 0.3 V Horizontal Output Duty Cycle Horizontal Output Voltage High Low 14 15 16 µs ±2.0 ±2.5 ±3.0 µs – 50/60 – Hz Vertical Pull–In Range 240.5 – 352.0 H Vertical 60Hz Identification Range 240.5 – 288.0 H 4.2 4.5 4.8 V – 0 0.3 V 2.7 3.0 3.3 V 4.25 4.75 5.25 H 0.25 0.75 1.25 H 0 – 7 H 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 1.1 1.5 1.8 V – 0 0.3 V 1.8 2.0 2.2 µs AFC2 Control Range Horizontal Phase Adjustment Range Vertical Free Running Frequency Vertical Pulse Output Voltage High Low Vertical Blanking Pulse Output Voltage Measure output frequency at Pin64 when no sync signal input. Measure high voltage at Pin64. Measure low voltage at Pin64 Measure middle voltage at Pin64 Vertical Output Delay Time 50Hz 60Hz Vertical Output Phase Variable Range Sync input 60Hz, data = 000, 111 SCP Output Voltage Clamp Gate Pulse Period FBP Input Terminal Voltage High Low Gate Pulse Width Sink current into Pin9 is kept at 0.1mA when measured. Mwasure high and low voltages at Pin9. Pin Connection Diagram Vertical Separation 1 Horizontal AFC1 2 32fH VCO 3 I2L VCC 4 Horizontal VCC 5 64 VP Output 63 Sync Input 62 Video GND 61 Black Detection 60 Video Input Horizontal Output 6 R Clamp 7 Horizontal AFC2 8 59 Video VCC 58 APL1 57 APL2 FBP Input 9 56 Gamma Voltage SCP Output 10 DAC Monitor 11 I2L/Horizontal Out GND 12 SDA 13 55 FAA 54 P/N ACC 53 ABL 52 Y Clamp SCL 14 51 3.58 Chroma Input GND 15 R Output 16 50 Chroma VCC 49 4.43 Chroma Input G Output 17 48 B Clamp B Output 18 47 PAL Ident TEXT VCC 19 46 Chroma GND G Clamp 20 45 3.58 X’tal TV/TEXT 21 44 M/N X’tal External R Input 22 43 4.43 X’tal External G Input 23 42 NTSC Ident External B Input 24 ACL 25 41 B–Y Output 40 R–Y Output QIF InputAPC 26 39 P/N/S Identification Output SECAM GND 27 38 B–Y Input fsc Output 28 37 R–Y Input SECAM fsc 29 B–Y De–Emphasis 30 SECAM Ident 31 36 SECAM VCC 35 SECAM Input R–Y De–Emphasis 32 33 SECAM ACC 34 BELL fo 64 33 1 32 2.270 (57.65) Max .708 (18.0) Min .236 (6.0) Max .070 (1.78) .106 (2.7) Min .750 (19.0)