TS4956 datasheet(1/51 Pages) STMICROELECTRONICS

部件名	TS4956

功能描述	Stereo audio amplifier system with I2C bus interface

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 51 page

May 2006

Rev. 3

1/51

51

TS4956

Stereo audio amplifier system with I2C bus interface

■ Operating from VCC = 2.7 V to 5.5 V

■ I²C bus control interface

■ 38 mW output power @ VCC =3.3 V,

THD = 1%, F = 1 kHz, with 16

Ω Load

■ Ultra low consumption in standby mode: 0.5 µA

■ Digital volume control range from +12 dB to

-34 dB

■ 32-step digital volume control

■ Stereo loudspeaker option by I2C

■ 8 different output mode selections

■ Pop & click reduction circuitry

■ Flip-chip package, 18 bumps with 300 µm

diameter

■ Lead-free flip chip package

■ Output power limitation on headphone for

eardrum damage consideration

Description

The TS4956 is a complete audio system device

with three dedicated outputs, one stereo

headphone, one loudspeaker drive and one mono

line for a hands-free set. The stereo headphone is

capable of delivering more than 25 mW per

channel of continuous average power into 16

Ω

single-ended loads with 0.3% THD+N from a 5 V

power supply. The device functions are controlled

via an I²C bus, which minimizes the number of

external components needed.

The overall gain and the different output modes of

the TS4956 are controlled digitally by the control

registers which are programmed via the I²C

interface. It has also an internal thermal shutdown

protection mechanism.

Applications

■ Mobile phones (cellular / cordless)

■ PDAs

■ Laptop / notebook computers

■ Portable audio devices

Device summary table

TS4956 - Flip-Chip18

Pin connections (top view)

RIN

LHP-

MLO

RHP+

MIN

VCC

SDA

LIN

VCC

GND

I2CVCC

MIP

SRP+

SRN-

SCL

GND

BYPASS

PGH

RIN

LHP-

MLO

RHP+

MIN

VCC

SDA

LIN

VCC

GND

I2CVCC

MIP

SRP+

SRN-

SCL

GND

BYPASS

PGH

Part Number

Temperature Range

Package

Packing

Marking

TS4956EIJT

-40°C to +85°C

Lead free flip-chip18

Tape & Reel

56

www.st.com

类似零件编号 - TS4956

制造商	部件名	数据表	功能描述
Techcon Systems Inc.	TS490-HO-LD-PK	1Mb / 8P	310 ml Dispensing Tools/Accessories
STMicroelectronics	TS4900	480Kb / 19P	300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH Jan-2002
	TS4900ID	480Kb / 19P	300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH Jan-2002
	TS4900IDT	480Kb / 19P	300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH Jan-2002
	TS4900IS	480Kb / 19P	300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH Jan-2002

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类似说明 - TS4956

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