U2510B

www.DataSheet4U.com U2510B All-Band AM/FM Receiver and Audio Amplifier Description The U2510B is an integrated bipolar one-chip AM/FM radio circuit. It contains an FM front end with preamplifier, FM IF and demodulator, a complete AM receiver, an AF amplifier and a mode switch for AM, FM and tape. This circuit is designed for clock radios and portable radio-cassette recorders. Features D Superior FM strong signal behavior by using RF AGC D Soft mute and HCC for decreasing interstation noise in FM mode D Excellent AFC performance (level controlled, both polarities available) D Level indicator (LED drive) for AM and FM D DC mode control: AM, FM and tape D Wide supply-voltage range and low quiescent current D High AF output power: 1 W D Electronic volume control D Electronic AF bandwidth control (treble and high cut) D Output stage for headphone and speaker drive Block Diagram FM RF tank FM ant. VS 9 8 7 AFC FM RF BPE AGC 12 FM front end FM AGC AM front end RF AGC Voltage stab. AM/FM and mode control 15 21 13 20 19 1 22 IF AGC AM AGC AFC control AM IF amp. and detect. IF Level indic. AF preamp. Volume Mute HCC 18 FM IF amp. FM discr. Power amp. 25 23 24 4 6 14 16 2 26 28 27 3 FM osc. tank IF BPE (Replaceable) 11 AM ant. AM osc. tank 10 5 VRef AM S2 VS AFC mode LED VS Treble Vol 13912 FM Tape Figure 1. Block diagram TEMIC Semiconductor Rev. A1, 06-Apr-98 1 (15) U2510B Order Information Extended Type Number U2510B-M U2510B-M__T Package SDIP28 SDIP28 Pin 5 28 AF-GND...