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TDA1220 데이터시트(PDF) 1 Page - STMicroelectronics |
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TDA1220 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 18 page TDA1220B AM-FM QUALITY RADIO The TDA1220B is a monolithic integrated circuit in a 16-lead dual in-line package. It is intended for quality receivers produced in large quantities. The functions incorporated are: AM SECTION – Preamplifier and double balanced mixer – One pin local oscillator – IF amplifier with internal AGC – Detector and audio preamplifier FM SECTION – IF amplifier and limiter – Quadrature detector – Audio preamplifier The TDA1220B is suitable up to 30MHz AM and for FM bands (including 450KHz narrow band) and features: – Very constant characteristics (3V to 16V) – High sensitivity and low noise – Very low tweet March 1993 BLOCK DIAGRAM DIP-16 Plastic (0.25) ORDERING NUMBER : TDA 1220BK – Sensitivity regulation facility (*) – High recovered audio signal suited for stereo decoders and radio recorders – Very simple DC switching of AM-FM – Low current drain – AFC facility (*) Maximum AM sensitivity can be reduced by means of a resistor (5 to 12K Ω) between pin 4 and ground. 1/18 |
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