NTE1297 Integrated Circuit TV Color Signal Processor/Demodulator Description: The NTE1297 is an integrated circuit consisting of an NTSC color signal processor and demodulator circuit. APC color synchronization and DC color−phase control is employed to ensure stability. Features: D Peak−type ACC Detector D Internal Setting of ACC and Color Killer Levels D APC System uses Sample and Hold for Color Synchronization D Detector Circuit has Output Temperature Characteristics Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4W Derating (TA ≥ 25°C), Kθ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14mW/°C Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +125°C Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified) Test Conditions Parameter Symbol Color Signal Input (dB) Pin 2 Voltage (V) Pin 8 Voltage (V) Min Typ Max Unit Circuit Current ICC Off 6 6 27 38 49 mA Color Signal Max. Gain Gc −22 8 6 36 42 47 dB Color Signal Max. Output Vcmax 0 8 6 0.9 1.25 1.6 Vp−p ACC Control Range (Note 1) RACC − 6 6 −18 − − dB Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 12V unless otherwise specified) Test Conditions Color Signal Input (dB) Pin 2 Voltage (V) Pin 8 Voltage (V) VI(K) − 6 Color Saturation Characteristics C 0 Color Phase Characteristics T APC Pull−In Range Parameter Symbol Min Typ Max Unit Killer Operational Input Level 6 −46 −37 −28 dB 4 to 8 6 40 − − dB 0 5.5 4 to 8 − 90 − Deg. Fp 0 6 6 ±400 − − Hz Output Voltage EODC Off 6 6 6.6 7.0 7.4 VDC Output Offset Voltage ∆EODC Off 6 6 − − 0.3 VDC δEODC/δT Off 6 6 −2 0 2 mV/ °C Eomax 0 8 6 4 − − Vp−p ECO 0 − 6 3 4 5 Vp−p Eo(R−Y)/ Eo(B−Y) 0 − 6 − 0.81 − Eo(G−Y)/ Eo(B−Y) 0 − 6 − 0.32 − θR−Y 0 5.5 6 − 106 − Deg. θB−Y 0 5.5 6 − 259 − Deg. Output Voltage Temp. Coefficient Max. Demodulation Output Voltage (Note 2) B−Y Demodulation Sensitivity (Note 2,3) Demodulated Output Voltage Ratio (Note 2,4) Demodulated Phase Angle Note *. Color Input signal consists of 50mVp−p burst portion and 100mVp−p color portion, treated as 0dB levels (frequency = 3.579545MHz ± 5Hz) Note 1. ACC control range is the input level when color output voltage is decreased by 3dB, compared with color output voltage which occurs with a 0dB color input signal. Note 2. Color portion frequency = 3.50MHz. Note 3. For color signal output voltage of 0.5Vp−p Note 4. For color signal output voltage of 0.3Vp−p Pin Connection Diagram GND Color Saturation Control Burst Gate Pulse Input APC Filter 1 22 Color Signal Input 2 21 Bypass 3 20 ACC Filter 4 19 Killer Filter APC Filter 5 18 Color Signal Output Quartz Control 6 17 B − Y Signal Input Quartz Control 7 16 R − Y Signal Input Color Phase Control 8 Color Subcarrier 9 Output B − Y Subcarrier 10 Input R − Y Subcarrier 11 Input 22 15 VCC 14 B − Y Output 13 R − Y Output 12 G − Y Output 12 .410 (11.41) 1 11 .400 (10.16) 1.300 (33.0) .216 (5.5) .100 (2.54) 1.000 (25.4) .110 (2.79)