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| 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 = +25C, unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4W Derating (TA 25C), K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14mW/C Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +125C Electrical Characteristics: (TA = +25C, VCC = 12V unless otherwise specified) Test Conditions Parameter Circuit Current Color Signal Max. Gain Color Signal Max. Output ACC Control Range (Note 1) Symbol ICC Gc Vcmax RACC Color Signal Input (dB) Off -22 0 - Pin 2 Voltage (V) 6 8 8 6 Pin 8 Voltage (V) 6 6 6 6 Min 27 36 0.9 -18 Typ 38 42 1.25 - Max 49 47 1.6 - Unit mA dB Vp-p dB Electrical Characteristics (Cont'd): (TA = +25C, VCC = 12V unless otherwise specified) Test Conditions Parameter Killer Operational Input Level Color Saturation Characteristics Color Phase Characteristics APC Pull-In Range Output Voltage Output Offset Voltage Output Voltage Temp. Coefficient Max. Demodulation Output Voltage (Note 2) B-Y Demodulation Sensitivity (Note 2,3) Demodulated Output Voltage Ratio (Note 2,4) Symbol VI(K) C T Fp EODC EODC EODC/T Eomax ECO Eo(R-Y)/ Eo(B-Y) Eo(G-Y)/ Eo(B-Y) Demodulated Phase Angle R-Y B-Y Color Signal Input (dB) - 0 0 0 Off Off Off 0 0 0 0 0 0 Pin 2 Voltage (V) 6 4 to 8 5.5 6 6 6 6 8 - - - 5.5 5.5 Pin 8 Voltage (V) 6 6 4 to 8 6 6 6 6 6 6 6 6 6 6 Min -46 40 - 400 6.6 - -2 4 3 - - - - Typ -37 - 90 - 7.0 - 0 - 4 0.81 0.32 106 259 Max -28 - - - 7.4 0.3 2 - 5 - - - - Deg. Deg. Unit dB dB Deg. Hz VDC VDC mV/ C Vp-p Vp-p 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 APC Filter Quartz Control Quartz Control 1 2 3 4 5 6 7 22 Color Signal Input 21 Bypass 20 ACC Filter 19 Killer Filter 18 Color Signal Output 17 B - Y Signal Input 16 R - Y Signal Input 15 VCC Color Phase Control 8 Color Subcarrier 9 Output B - Y Subcarrier 10 Input R - Y Subcarrier 11 Input 14 B - Y Output 13 R - Y Output 12 G - Y Output 22 12 .410 (11.41) 1 11 1.300 (33.0) .400 (10.16) .216 (5.5) .100 (2.54) 1.000 (25.4) .110 (2.79) |
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