器件名称:
TDA1220B
功能描述:
AM-FM QUALITY RADIO
文件大小:
416.26KB 共18页
简 介:
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 ORDERING NUMBER : TDA 1220BK DIP-16 Plastic (0.25) – 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) between pin 4 and ground. BLOCK DIAGRAM March 1993 1/18 TDA1220B ABSOLUTE MAXIMUM RATINGS Symbol Vs Ptot Top Tstg, Tj Supply voltage Total power dissipation at Tamb < 110°C Operating temperature Storage and junction temperature Parameter Value 16 400 -20 to 85 -55 to 150 Unit V mW °C °C PIN CONNECTION (Top view) THERMAL DATA Symbol Rth-j-amb Parameter Thermal resistance junction-ambient max Value 100 Unit °C/W 2/18 TDA1220B ELECTRICAL CHARACTERISTICS ( Tamb = 25 °C, Vs = 9V unless otherwise specified, refer to test circuit) Symbol Vs I……
