NTE1712 Integrated Circuit Record Video Signal Processor for VCR Description: The NTE1712 is an integrated circuit in a 22–Lead DIP type package designed for use in VCR recording video signal processing. Features: D Video AGC Circuit D Pre–Emphasis Circuit D Dynamic–Emphasis Circuit D White/Dark Chip D FM Modulator D Supply Voltage: 5V Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C Electrical Characteristics: (VCC = 5V, TA = +25°C ±2°C unless otherwise specified) Parameter Circuit Current AGC Output Amplitude Sensitivity of AGC Control Symbol I7 uO22 DuO22 Test Conditions V21 = VCC Video Input 0.5Vp–p Video Input 0.25 to 1.0Vp–p Min Typ Max Unit 7 – 22 mA 0.5 – 0.95 VP–P – – 2 dB Video Amplifier Gain GV20–18 9 – 14 dB FB Amplifier Gain GV’20–18 16 – 24 dB PB Amplifier Gain GV1–22 8 – 15 dB EE/VV Switching Sensitivity S21 2.5 – – V Oscillating Frequency for FM Modulator fO11 CO = 39pF, RO = 13kΩ 2.9 – 3.9 MHz Warp of FM Modulator Oscillating Output D2f11 CO = 39pF, RO = 13kΩ – – –35 dB Warp of FM Modulator Oscillating Output Second High Frequency uO11 CO = 39pF, RO = 13kΩ 0.6 – 1.2 VP–P CO = 39pF, RO = 8.2 to 15kΩ 12 – 19 kHz/µA Sensitivity of FM Modulator Frequency Control b11 Note 1. Operating Supply Voltage Range: VCC(opr) = 4.5V to 5.5V Pin Connection Diagram PB Video Input AGC Detector Rec Video Input EE Adjust H Sync Input Pulse Timing Delay VCC FM Modulator FM Modulator White Clip Adjust FM Modulator Output 22 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 EE Output Rec/PB Select Clamp Input GND Video Output Non–Linear Emph Clamp Input (PB) Main Emph NF Input Main Emph Output Dark Clip Adjust FM Modulator Input 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)