STW5093 datasheet(1/34 Pages) STMICROELECTRONICS

部件名	STW5093

功能描述	2.7V SUPPLY 14-BIT LINEAR CODEC WITH HIGH-PERFORMANCE AUDIO FRONT-END

PDF	34 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STw5093

March 2004

FEATURES:

Complete CODEC and FILTER system including:

■ 14 BIT LINEAR ANALOG TO DIGITAL AND

DIGITAL TO ANALOG CONVERTERS.

■ 8 BIT COMPANDED ANALOG TO DIGITAL

AND DIGITAL TO ANALOG CONVERTERS A-

LAW OR

µ-LAW.

■ TRANSMIT AND RECEIVE BAND-PASS

FILTERS

■ ACTIVE ANTIALIAS NOISE FILTER.

Phone Features:

■ ONE MICROPHONE BIASING OUTPUT

■ REMOTE CONTROL (REMOCON) FUNCTION

■ THREE SWITCHABLE MICROPHONE

AMPLIFIER INPUTS. GAIN

PROGRAMMABLE:0 . . 42.5 dB AMPLIFIER,

1.5 dB STEPS (+ MUTE).

■ EARPIECE AUDIO OUTPUT. ATTENUATION

PROGRAMMABLE: 0 . . 30 dB, 2 dB STEPS.

■ EXTERNAL AUDIO OUTPUT. ATTENUATION

PROGRAMMABLE: 0 . . 30 dB, 2 dB STEPS.

■ DRIVING CAPABILITY: 140mW OVER 8

Ω

■ TRANSIENT SUPRESSION SIGNAL DURING

POWER ON AND DURING AMPLIFIER

SWITCHING.

■ INTERNAL PROGRAMMABLE SIDETONE

CIRCUIT. ATTENUATION PROGRAMMABLE:

16 dB RANGE, 1 dB STEP.

■ INTERNAL RING, TONE AND DTMF

GENERATOR, SINEWAVE OR

SQUAREWAVE WAVEFORMS.

ATTENUATION PROGRAMMABLE: 27dB

RANGE, 3dB STEP. THREE FREQUENCY

RANGES:

a) 3.9Hz . . . . 996Hz, 3.9Hz STEP

b) 7.8Hz . . . . 1992Hz, 7.8Hz STEP

c) 15.6Hz . . . . 3984Hz, 15.6Hz STEP

■ PROGRAMMABLE PULSE WIDTH

MODULATED BUZZER DRIVER OUTPUT.

General Features:

■ SINGLE 2.7V to 3.3V SUPPLY

■ EXTENDED TEMPERATURE RANGE

OPERATION (*) -40°C to 85°C.

■ 1.0

µW STANDBY POWER (TYP. AT 2.7V).

■ 13mW OPERATING POWER (TYP. AT 2.7V).

■ 1.8V TO 3.3V CMOS COMPATIBLE DIGITAL

INTERFACES.

■ PROGRAMMABLE PCM AND CONTROL

INTERFACE MICROWIRE COMPATIBLE.

APPLICATIONS:

■ GSM/DCS1800/PCS1900/JDC DIGITAL

CELLULAR TELEPHONES.

■ CDMA CELLULAR TELEPHONES.

■ DECT/CT2/PHS DIGITAL CORDLESS

TELEPHONES.

■ BATTERY OPERATED AUDIO FRONT-ENDS

FOR DSPs.

(*) Functionality guaranteed in the range - 40°C to +85°C; Timing

and Electrical Specifications are guaranteed in the range - 30°C

to +85°C.

GENERAL DESCRIPTION

STw5093 is a high performance low power combined

PCM CODEC/FILTER device tailored to implement the

audio front-end functions required by low voltage/low

power consumption digital cellular terminals. STw5093

offers a number of programmable functions accessed

through a serial control channel that easily interfaces to

any classical microcontroller. The PCM interface sup-

ports both non-delayed (normal and reverse) and de-

layed frame synchronization modes.

STw5093 can be configurated either as a 14-bit lin-

ear or as an 8-bit companded PCM coder.

Additionally to the CODEC/FILTER function, STw5093

includes a Tone/Ring/DTMF generator, a sidetone gen-

eration, and a buzzer driver output.STw5093 fulfills and

exceeds D3/D4 and CCITT recommendations and ETSI

requirements for digital handset terminals.

Main applications include digital mobile phones, as

cellular and cordless phones, or any battery powered

equipment that requires audio codecs operating at

low single supply voltages.

TSSOP30

ORDERING NUMBER: STw5093

2.7V SUPPLY 14-BIT LINEAR CODEC WITH

HIGH-PERFORMANCE AUDIO FRONT-END

类似零件编号 - STW5093

制造商	部件名	数据表	功能描述
STMicroelectronics	STW5093CYLT	620Kb / 34P	2.7V SUPPLY 14-BIT LINEAR CODEC WITH HIGH-PERFORMANCE AUDIO FRONT-END Mar-2004

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