NTE1808 Integrated Circuit Playback Video Processor for VCR Description: The NTE1808 is a integrated circuit in a 28–Lead DIP type package designed for VCR playback video signal processin circuits. Features: D Built–In Line Noise Canceler D Built–In Picture Control Circuit D Supply Voltage: VCC = 5V Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Electrical Characteristics: (VCC = 5V, TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 17 – 30 mA Circuit Current I23 DOC Amplifier Gain G25 Pin24 Input (60mVP–P, 4MHz) 13 – 16 dB DOC Sensitivity ON S28 Pin26 Input (4MHz), 0dB = 350mVP–P –15 – –11.5 dB DOC Sensitivity OFF (Hysteresis) DS28 –5 – –0.5 dB Sub FM Demodulation Det. Sensitivity S15 Pin24 Input (50mVP–P) Pin17 3.5V F11 is multiplied by Gain (0dB = 250mV) 2.5 – – dB Sub FM Demodulation Det. Limitation Lf15 Pin24 Input (100mVP–P), Pin17 3.5V 7 – – MHz Main FM Demodulation Det. Sensitivity S16 Pin21 Input (150mVP–P), Pin17 3.5V F11 is multiplied by Gain (0dB = 250mV) 2.5 – – dB Main FM Demodulation Det. Limitation Lf16 Pin21 Input (100mVP–P), Pin17 3.5V 7 – – MHz Difference Det. Amp. Gain A G11–1 Pin14 Input (100mVP–P, 1MHz) 13.5 – 16.5 dB Difference Det. Amp. Gain B G11–2 Pin13 Input (100mVP–P, 1MHz) 12 – 15 dB Note 1. Operating Supply Voltage Range: VCC(opr) = 4.5V to 5.5V Electrical Characteristics (Cont’d): (VCC = 5V, TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 7 – 10 dB –5.5 – –2.5 dB Differential + Mix Amp Gain G4–1 Mix Amp. Ratio G4–2 Pin12 Input (500mVP–P, 1MHz) Line Noise Canceler Switch Changeover Level Difference Du4 Pin27 Control Pulse –5 – 5 mV Line Noise Canceler Switch Crosstalk CT4 500mVP–P, 1MHz Pin4 Output Ratio of Pin10 & Pin12 – – –40 dB Line Noise Canceler Limiter Gain G7 Pin9 Input (40mVP–P, 1MHz) 15.5 – 19.0 dB Line Noise Canceler Cerrlative Det. Sensitivity ON S6 Pin9 Input (4MHz), 0dB = 60mVP–P 1.5 – 4.5 dB Line Noise Canceler Cerrlative Det. Sensitivity OFF (Hysteresis) DS6 Pin9 Input (4MHz), 0dB = 60mVP–P –4 – –0.1 dB Picture Gain Control G1 Pin3 Input (250mVP–P, 1MHz), Output Ratio of Pin2 0V and 2.5V –1.5 – 0.5 dB Picture Control Frequency Characteristics A f1–1 Pin3 Input (250mVP–P, 1MHz) – – –3 dB Picture Control Frequency Characteristics B f1–2 Pin3 Input (250mVP–P, 1MHz), Output Ratio of Pin2 5V and 2.5V 5 – – dB Note 1. Operating Supply Voltage Range: VCC(opr) = 4.5V to 5.5V Note 2. Pin8 shall be always used in connection with Pin23 Note 3. Power supply to be supplied to the variable resistor added to Pin2 and Pin17 shall be used the same as that supplied to this integrated circuit. Note 4. Since deterioration or destroy of characteristics due to flow of overcurrent caused by reverse current, careful should be taken to handling. Pin Connection Diagram Video Output Picture Control De–Emphasis Peaking Extension Relative Detecting Pulse Output Line N.C. LIM Output VCC (Record) Line N.C. LIM Input Diff Signal Input Diff Signal Output Limited Signal Input Video Input Video (1H DL) Input 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 DOC Pulse Output Envelope DET RF Input RF Output 1H Delay RF Input VCC Double LIM H.P.F. Input Double LIM H.P.F. Input GND LIM LIM DEM Gain Control DEM Output DEM (1H DL) Output 28 15 1 14 1.120 (28.4) .338 (8.6) .200 (5.08) .070 (1.78) .130 (3.3) .400 (10.16)