Datasheet > TS472

TS472

更新时间： 2024-11-04 21:53:27

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		放大器
页数	文件大小	规格书
20页	613K
描述
Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode

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TS472 数据手册

TS472

Very Low Noise Microphone Preamplifier

with 2V Biased Output and Active Low Standby Mode

■ Low noise: 10nV/√Hz typ. equivalent input

Flip-chip - 12 bumps

noise @ F = 1kHz

■ Fully differential input/output

■ 2.2V to 5.5V single supply operation

■ Low power consumption @20dB: 1.8mA

■ Fast start up time @ 0dB: 5ms typ.

■ Low distortion: 0.1% typ.

Pin Connections (top view)

■ 40kHz bandwidth @ -3dB and adjustable

■ Active low standby mode function (1µA max)

■ Low noise 2.0V microphone bias output

■ Available in flip-chip lead-free package

■ ESD protection (2kV)

VCC

OUT-

STDBY

OUT+

GND

OUTPUT

BIAS

IN+

BYPASS

IN-

Description

The TS472 is a differential-input microphone

preamplifier optimized for high-performance, PDA

and notebook audio systems.

This device features an adjustable gain from 0dB

to 40dB with excellent power-supply and

common-mode rejection ratios. In addition, the

TS472 has a very low-noise microphone bias

generator of 2V.

Applications

■ Video and photo cameras with sound input

■ Sound acquisition & voice recognition

■ Video conference systems

It also includes a complete shutdown function,

with active low standby mode.

■ Notebook computers and PDAs

Order Codes

Part Number

TS472EIJT

Temperature Range

Package

Packing

Marking

-40, +85°C

Flip-Chip

Tape & Reel

472

Rev 2

1/20

October 2005

www.st.com

12 3 4 5 6 7...20

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