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U2510B

TEMIC Semiconductors
Part Number U2510B
Manufacturer TEMIC Semiconductors
Description All-Band AM/FM Receiver and Audio Amplifier
Published Feb 26, 2007
Detailed Description www.DataSheet4U.com U2510B All-Band AM/FM Receiver and Audio Amplifier Description The U2510B is an integrated bipolar ...
Datasheet PDF File U2510B PDF File

U2510B
U2510B

Overview
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 6 Remarks VS < 6 V supply voltage Function AM oscillator tank circuit input, recommended load impedance approximately 2.
5 kW FM–AFC AFC diode connection, coupling capacitor (C19) determines the AFC characteristic (holding range and slope) FMOsc FM oscillator tank circuit input, recommended load impedance approximately 3 kW VRef Regulated voltage output (2.
4 V) FMtank FM RF tank circuit connection, recommended load impedance approximately 3 kW AMtank AM RF tank circuit connection, recommended l...


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