TSH512CF datasheet(1/31 Pages) STMICROELECTRONICS

部件名	TSH512CF

功能描述	Hi-fi stereo/mono infrared transmitter and stereo sub-carrier generator

PDF	31 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 31 page

May 2009

Doc ID 8120 Rev 7

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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

■ 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

Applications

■ Infrared hi-fi stereo transmitters

■ Infrared headsets

■ Stereo sub-carriers for video transmitters

■ Voice-operated wireless webcams

■ FM IF transmit systems

Description

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 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.

The TSH512 forms a chipset with the dual

receiver TSH511.

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+

-+

-

TSH512

Monostable

ALC

VCO

Output

buffer

Output

buffer

TX1

TX2

LNA

VOX

-

+

PEA

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1

--+

-

+

-

TSH512

Monostable

ALC

VCO

Output

buffer

Output

buffer

TX1

TX2

LNA

VOX

-

+

PEA

Pin connections (top view)

F

TQFP44

10 x 10 mm

www.st.com

类似零件编号 - TSH512CF

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STMicroelectronics	TSH512CF	1Mb / 19P	HiFi stereo/mono infrared transmitter Stereo sub-carrier generator Dec-2002
STMicroelectronics	TSH512CFT	1Mb / 19P	HiFi stereo/mono infrared transmitter Stereo sub-carrier generator Dec-2002

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