STW5095(2005) Просмотр технического описания (PDF) - STMicroelectronics

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STW5095
(Rev.:2005)

Low Power Asynchronous Stereo Audio Codec with Integrated Power Amplifiers

STMicroelectronics 

STw5095

Description

STw5095 is a low power asynchronous stereo

audio CODEC device with headphones

amplifiers for high quality audio listening and

recording.

The STw5095 control registers are accessed

through a selectable I2C-bus compatible or SPI

compatible interface.

The STw5095 asynchronous stereo audio

CODEC is designed to easily fit in most audio

systems because it supports an extended master

clock range (any value between 4 MHz and

32 MHz) and at the same time it supports any

audio data rate (independent in AD and DA

paths) from 8 kHz to 48 kHz and from 88 kHz to

96 kHz, moreover it can tolerate jitter on audio

data without degrading performance. The audio

data serial interfaces (for AD and DA) can be

Master or Slave, are I2S compatible and they

support other formats that can easily interface to

standard serial ports. The two audio interfaces

can be used as a single bidirectional interface.

Two frequency programmable clock sources are

available to generate the master clock for the

audio sub-system of other devices. The internal

D to A and A to D converters work with up to

24 bit resolution.

Pin configuration (top view)

The supply voltage can be the same for the

whole device, in the range 2.4 V to 2.7 V, or it can

be differentiated for digital (VCC: 1.8 V to 2.7 V),

analog (VCCA: 2.4 V to 3.3 V) and loudspeaker

driver (VCCLS: VCCA to 5.5 V) to obtain best

performance and maximum power to the

loudspeaker (up to 500 mW).

STw5095 has multiple analog mixable inputs and

outputs. It can directly drive Stereo Headphones

without external capacitors and it has a

Loudspeaker driver that can also be used for

monophonic group listening. Stereo differential

and single ended microphones, auxiliary line in

stereo and mono signals can be mixed and

connected to the ADC or directly to the drivers,

mixed also with DAC audio signals.

STw5095 stereo audio Codec main applications

include multimedia handheld devices such as

cellular phones with added low-power high-

quality MP3 and⁄ or FM radio listening/recording

features, or any battery powered equipment such

as PDAs, Camcorders, etc. that require Stereo

Audio Codec with Headphones drivers.

Ordering codes

Part Number

STw5095

STw5095T

Details

TFBGA 64 Tray

TFBGA 64 Tape and Reel

GND

SCLK AD_OCK DA_OCK AD_CK AMCK AD_SYNC DA_DATA

A

HDET VCCA

VCC SDA/SDIN DA_CK AD_DATA DA_SYNC IRQ

B

AUX1L MICLN VCCA CMOD AS/CSB VCC

GND MBIAS

C

CAPMIC MICLP AUX3L GNDA VCCIO VCCA MICRN AUX1R

D

AUX2LN AUX2LP LINEINL CAPLS AUX3R GNDA CAPLINEIN MICRP

E

OLN GNDCM VCMHPS LSPS LSNS LINEINR AUX2RP AUX2RN

F

OLP

GNDP VCMHP LSP

LSN

VCCP GNDP

ORN

G

VCCP

HPL VCCLS GNDP GNDP VCCLS HPR

ORP

H

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