TS472 datasheet(1/20 Pages) STMICROELECTRONICS

部件名	TS472

功能描述	Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode

PDF	20 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 20 page

Rev 2

October 2005

1/20

20

TS472

Very Low Noise Microphone Preamplifier

with 2V Biased Output and Active Low Standby Mode

■ Low noise: 10nV/

√Hz typ. equivalent input

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.

■ 40kHz bandwidth @ -3dB and adjustable

■ Active low standby mode function (1

µA max)

■ Low noise 2.0V microphone bias output

■ Available in flip-chip lead-free package

■ ESD protection (2kV)

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.

It also includes a complete shutdown function,

with active low standby mode.

Applications

■ Video and photo cameras with sound input

■ Sound acquisition & voice recognition

■ Video conference systems

■ Notebook computers and PDAs

Order Codes

IN+

IN-

GND

OUT+

C2

C1

OUTPUT

BIAS

GS

VCC

OUT-

STDBY

BYPASS

Flip-chip - 12 bumps

Pin Connections (top view)

Part Number

Temperature Range

Package

Packing

Marking

TS472EIJT

-40, +85°C

Flip-Chip

Tape & Reel

472

www.st.com

类似零件编号 - TS472

制造商	部件名	数据表	功能描述
STMicroelectronics	TS472	624Kb / 24P	Very low noise microphone preamplifier with 2.0V bias output and active low standby mode 12-Sep-2006
	TS472	692Kb / 25P	Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode 25-Aug-2009
	TS472EIJT	624Kb / 24P	Very low noise microphone preamplifier with 2.0V bias output and active low standby mode 12-Sep-2006
	TS472EIJT	692Kb / 25P	Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode 25-Aug-2009
	TS472IQT	624Kb / 24P	Very low noise microphone preamplifier with 2.0V bias output and active low standby mode 12-Sep-2006

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