器件名称: U2510B-M
功能描述: All-Band AM/FM Receiver and Audio Amplifier
文件大小: 400.11KB 共15页
简 介: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 D D D D D
DC mode control: AM, FM and tape Wide supply-voltage range and low quiescent current High AF output power: 1 W Electronic volume control Electronic AF bandwidth control (treble and high cut) 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 <……
