NTE1807 Integrated Circuit Head Amplifier Circuit for 2 Head VCR Features: D Built–in Peaking Amplifier Circuit D Less Noise Voltage Referred to Input: 1µVrms Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Power Dissipation (TA = +70°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130mW Operating Ambient Temperature, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Electrical Characteristics: (TA = +25°C, VCC = 5V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 10 – 24 mA Circuit Current I1 Channel I Gain G3–9 f = 1MHz, 0.5mVP–P 52.5 – 62.5 dB Channel II Gain G5–9 f = 1MHz, 0.5mVP–P 52.5 – 62.5 dB AGC Output Amplitude υ12 f = 4MHz, 0.3mVP–P 154 – 286 mυP–P AGC Control Sensitivity ∆υ20 f = 4MHz, 0.3mVP–P – – 3 dB PG Switch Changeover Sensitivity S8 f = 1MHz, 0.5mVP–P – – 3.5 V Noise Voltage Referred to Input (I) Vni1 1MHz BFP – – 1 µVrms Noise Voltage Referred to Input (II) Vni2 1MHz BFP – – 1 µVrms Note 1. Operating Supply Voltage Range: VCC(opr) = 4.5 to 5.5V Pin Connection Diagram VCC 1 14 Peaking Ch 1 Damping Adjust 2 13 GND Ch 1 Input 3 12 AGC Output A GND 4 11 AGC Output B Ch 2 Input 5 10 AGC Level Detect Ch 2 Damping Adjust 6 9 Chroma Signal Output PB ON Switch 7 14 8 PG Pulse Input 8 .250 (6.35) 1 7 .771 (19.06) .185 (4.7) .100 (2.54) .600 (15.24) .120 (3.05)