Datasheet > TSH512_09

TSH512_09

更新时间： 2022-12-19 08:04:49

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
31页	1353K
描述
Hi-fi stereo/mono infrared transmitter and stereo sub-carrier generator

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TSH512_09 数据手册

TSH512

Hi-fi stereo/mono infrared transmitter

and stereo sub-carrier generator

Features

■ Supply voltage: 2.3 to 5.5 V

■ Carrier frequency range: 0.4 to 11 MHz

■ High versatility: I/O pins for each section

■ Two FM transmitters for stereo

TQFP44

10 x 10 mm

■ Sinusoidal carriers for high spectral purity

■ Micro- or line-level preamplifiers with ALC

■ VOX function to save on battery power

■ Transmitter TX2 standby for mono operation

Pin connections (top view)

VCO

PEA

Applications

ALC

Output

buffer

TX2

■ Infrared hi-fi stereo transmitters

■ Infrared headsets

LNA

TSH512

■ Stereo sub-carriers for video transmitters

■ Voice-operated wireless webcams

■ FM IF transmit systems

VOX

Monostable

LNA

Output

buffer

TX1

ALC

Description

PEA

VCO

The TSH512 is a 0.4- to 11-MHz dual FM

transmitter. Access pins to each section give high

versatility and allow for several different

applications: stereo headphone, multimedia

headset, audio sub-carrier generator.

The TSH512 forms a chipset with the dual

receiver TSH511.

The TSH512 integrates in a single chip low-noise

audio preamplifiers with ALC (automatic level

control), frequency-modulated oscillators, and

linear output buffers to drive the external

transistors. The sinusoidal carriers facilitate the

filtering and allow high performance audio

transmission.

The VOX (voice operated transmit) circuitry

disables the output buffer when there is no audio

signal to save battery power. For MONO

applications, the STANDBY pin enables one

transmitter only, reducing the supply current.

May 2009

Doc ID 8120 Rev 7

1/31

www.st.com

12 3 4 5 6 7...31

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