NTE1689 Integrated Circuit Head Amp Circuit for VCR Features: D The Function Consist of: Video Signal Pre–Amplifier Circuit Head Switchover Circuit Drop–Out Compensation Circuit RF AGC Circuit D Low–Noise Head Amplifier D Supply Voltage: 5V Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Electrical Characteristics: (VCC = 5V, TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 8 – 20 mA Circuit Current I1 Channel 1 Gain GV4–10 f = 1MHz 52.5 – 62.5 dB Channel 2 Gain GV8–10 f = 1MHz 52.5 – 62.5 dB AGC Output Amplitude vo(AGC•12) f = 4MHz 170 – 330 mVP–P AGC Control Sensitivity ∆vo(AGC•12) f = 4MHz – – 2.5 dB Output Amplifier Gain GV13–17 f = 4MHz 0.05 – 2.7 dB DOC Amplifier Gain GV18–17 f = 4MHz 10.5 – 14.0 dB DOC Sensitivity ON S13–1 f = 4MHz – – –19 dB DOC Sensitivity OFF S13–2 f = 4MHz –10.8 – – dB PG Input Sensitivity S2 – – 3 V Noise Voltage Referred to Input Vni1 1MHz BPF – – 1 µVrms Vni2 1MHz BPF – – 1 µVrms Note 1. Operating supply voltage range: VCCopr = 4.5V to 5.5V. Pin Connection Diagram VCC 1 18 DOC Amp Input PG Input 2 Damping (1) 3 17 FM Output 16 DOC Detect FM Input (1) 4 15 DOC Pulse GND 5 14 GND FM Input (2) 6 13 DOC Input Damping (2) 7 12 FM Equalizer 11 FM Output Reference Voltage 8 AGC Detect 9 10 Chroma Output 18 10 1 9 .870 (22.1) Max .250 (6.35) .150 (3.8) .100 (2.54) .800 (20.3) .125 (3.17) Min