NTE1785

NTE1785 Integrated Circuit TV IF Amp w/Demod and AFC (For PNP Tuners) Description: The NTE1785 is an IF amplifier and demodulator circuit in a 16–Lead DIP type package designed for use in color and black and white television receivers using PNP tuners. Features: D Gain–Controlled Wide–Band Amplifier Providing Complete IF Gain D Synchronous Demodulator D White Spot Inverter D Video Preamplifier with Noise Protection D AFC Circuit which can be Switched ON/OFF by a DC Level (e.g. During Tuning) D AGC Circuit with Noise Gating D Tuner AGC Output (PNP Tuners) D VCR Switch which Switches Off the Video Output (e.g. For Insertion of a VCR Playback Signal) Absolute Maximum Ratings: Supply Voltage, V11–13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2V Tuner AGC Voltage, V4–13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Total Power Dissipation, Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900mW Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +60°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = +25°C, V11–13 = 12V, f = 38.9MHz unless otherwise specified) Parameter Supply Voltage Range...