NTE1422 Integrated Circuit Playback Video Signal Processor for VCR Features: D Drop−out Compensation Circuit D FM Demodulator D Noise Canceller Circuit D Mixer Amplifier Circuit D Limiter Circuit D Double Limiter Circuit Can Be Used D Supply Voltage, Either 9V or 12V Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified) Supply Voltage, V3−15,28, V21−15,28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4W Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C Electrical Characteristics: (TA = +25°C, VCC = 12V, VCC(opr) = 8.8V to 13V unless otherwise specified) Parameter Circuit Current Symbol Test Conditions I1 Voltage Gain (RF Amp) GV7−10 Voltage Gain (DOC Amp) GV12−10 f = 4MHz, Vi = 0.2Vp−p Sensitivity DOC Detect ON S(1) f = 4MHz, Vi = 0.5Vp−p 0dB = 0.5Vp−p Min Typ Max Unit 60 − 104 mA 3.3 − 6.3 dB 9 − 12 dB −25.5 − − dB − − −17 dB DOC Detect OFF S(2) Sensitivity (Demod Det) S(3) f = 3.5MHz to 4.5MHz 270 − 450 mV/MHz Demod Det f(lim) C = 27pF, Vi = 0.7Vp−p 6 − − MHz Carrier Leak (Demod Det) CL f = 4MHz, Vi = 0.7Vp−p − − −25 dB 11 − 14 dB Voltage Gain Video Amp Color GV25−2 f = 100kHz, Vi = 0.5Vp−p Video Amp B/W GV22−2 f = 100kHz, Vi = 0.4Vp−p 12.5 − 15.5 dB Amplitude (High−Pass Amp Out) n f = 3MHz, Vi = 0.5Vp−p 0.25 − 0.6 Vp−p 16 − 22 dB 10.5 − 13.5 dB Voltage Gain (High−Pass Amp) GV25−20 f = 3MHz, Vi = 10mVp−p Voltage Gain (Chroma Amp) GV29−2 f = 3MHz, Vi = 0.3Vp−p Electrical Characteristics (Cont’d): (TA = +25°C, VCC = 12V, VCC(opr) = 8.8V to 13V unless otherwise specified) Parameter Symbol Voltage Gain (E−E Amp) GV4−2 Sensitivity (E−E/V−VSW) (1) Test Conditions Typ Max Unit 11 − 14 dB S(4) − − 4 V S(5) 10 − − V Sensitivity (Color/BW SW) S(6) − − 1 V Sensitivity (Muting) S(7) − − 1.5 V − − −40 dB (2) f = 100kHz, Vi = 0.5Vp−p Min Crosstalk Color/BW CT(1) Muting CT(2) − − −40 dB E−E/V−V CT(3) − − −40 dB D2f − − −40 dB 2nd Harmonic Distortion f = 3MHz, Vi = 0.5Vp−p Pin Connection Diagram Clamp Video Signal Output Playback VCC E−E Video Signal Input DOC Pulse Output 1 29 Chroma Signal Input 2 28 GND 3 27 Noise Canceller 4 26 Muting 5 25 Color Amp Input DOC Detect 6 24 Feedback Amp RF Input (At Color) 7 23 Feedback Amp Reference Voltage 8 22 Video Signal Input RF Input (At B/W) 9 21 Mix Amp Output 10 Gate Amp Bias 11 1H Delayed 12 Signal Input Limiter 13 Limiter 14 GND 15 VCC 20 High Pass Limiter Output 19 High Pass Limiter 18 High Pass Limiter 17 FM Demod 16 FM Demod Output 3° − 15° 15 14 1 .551 (14.0) Max .600 (15.24) 29 16 .016 (0.40) 1.469 (37.3) Max .228 (5.8) .122 (3.1) .060 (1.52) Typ .020 (.508) .100 (2.54)