STW5098 查看數據表（PDF） - STMicroelectronics

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STW5098

Dual low power asynchronous stereo audio Codec with integrated power amplifiers

STMicroelectronics 

STw5098

Dual low power asynchronous stereo audio Codec

with integrated power amplifiers

Features

■ Dual 20 bit audio resolution, 8kHz to 96kHz

independent rate ADC and DAC

■ Dual I2S or PCM digital interfaces for dual

master

■ Sustain complex voice and audio flow with or

without mixing

■ I2C/SPI compatible control I/F

■ Asynchronous sampling ADC and DAC: they

do not require oversampled clock and

information on the audio data sampling

frequency (fs). Jitter tolerant fs

■ Wide master clock range: from 4MHz to 32MHz

■ Stereo headphones drivers, handsfree

loudspeaker driver, line out drivers

■ Mixable analog line inputs

■ Voice filters: 8/16kHz with voice channel filters

■ Automatic gain control for microphone and line-

in inputs

■ Frequency programmable clock outputs

■ Multibit Σ∆ modulators with data weighted

averaging ADC and DAC

■ DSP functions for bass-treble-volume control,

mute, mono/stereo selection, voice channel

filters, de-emphasis filter and dynamic

compression

■ 93 dB dynamic range ADC, 0.001% THD with

full scale output @ 2.7V

■ 95 dB dynamic range DAC, 0.02% THD

performance @ 2.7V over 16Ω load

Applications

■ Digital cellular telephones with application

processor such as mp3 or gaming and

Bluetooth concurrent application

STw5098

LFBGA 6x6x1.4 (112 pins)

VFBGA 5x5x1 (112 pins)

Description

STw5098 is a dual low power asynchronous

stereo audio CODEC device with headphones

amplifiers for high quality audio listening and

recording.

Two I2S/PCM digital interfaces are available, one

per master for example Bluetooth and Application

Processor, enabling concurrent audio and voice

flow between Network and user.

The STw5098 control registers are accessible

through a selectable I2C-bus compatible or SPI

compatible interface.

April 2007

Rev 1

1/85

www.st.com

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