NTE1264 Integrated Circuit Video AGC Circuit for VCR Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage (V12–4), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.6V Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45mA Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperatue Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Electrical Characteristics: (VCC = V12–4 = 12V, TA = +25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Total Circuit Current Itot 15 25 38 mA Video Signal Input Voltage V11 2 3 4 V 1.0 1.3 1.8 VP–P AGC Output Amplitude AAGC(7) Vi = 0.5VP–P AGC Control Sensitivity bAGC(7) f = 10kHz, –10 to +5dB, V11 = 0.5VP–P (0dB) – 0.5 1.0 dB AGC Circuit Gain GAGC(7) f = 10kHz, Vi = 0.1VP–P – 22 – dB 45 50 – dB AGC Signal–to–Noise Ratio S/NAGC(7) Video Signal 0.15VP–P AGC Frequency Chracteristics Gf(7) f1 = 1MHz, f2 = 5MHz, Vi = 0.1VP–P – 0.5 – dB Emphasis Gain GEH f1 = 10kHz, f2 = 2MHz, Vi = 0.3VP–P 7.1 8.0 8.5 dB Emphasis LF Gain GEL f = 10kHz, Vi = 0.3VP–P 8 10 12 dB DAGC f = 10kHz, Vi = 0.5VP–P – 0.5 1.5 % AGC Distortion Pin Connection Diagram Video Amp Output 2 1 16 Frequency Adjust Bias 2 15 Video Amp Input 1 AGC Control 3 14 Video Amp Output 1 GND 4 13 White Clip Adjust AGC Filter 5 12 VCC 11 Video Input AGC Detector Input 6 AGC Control 7 10 Preamp Output Bias 8 16 9 Video Amp Input 2 9 .260 (6.6) Max 1 8 .785 (19.9) Max .300 (7.62) .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7)