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STw5095 low-power asynchronous stereo audio/voice codec with integrated power amplifiers

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• 20-bit, 8 to 96 kHz independent rate stereo ADC and DAC

• 93 dB dynamic range ADC, 0.001% THD @ 2.7 V

• 95 dB dynamic range DAC, 0.02% THD @ 2.7 V

• Wide master clock range from 4 to 32 MHz

• 8/16 kHz voice codec with embedded channel filters

• Selectable and mixable analog stereo signal inputs

• Interfaces: I²S/SPI/PCM for audio data

and I²C/SPI for control

• Low power (23 mW in playback, 1 µW in standby)

• TFBGA64 (5 x 5 x 1.2 mm, 0.5 mm pitch)

• Optimized for portable applications

• Cost-optimized for voice and audio codec

• Reduced PCB area with a low number of external

components

• High audio quality under low-voltage operation

MP3 and FM radio listening/recording features

• Mobile phones

• Battery-powered equipment with stereo audio codec

and headphones drivers

• PDAs

• Camcorders

The STw5095 offers high-audio-quality analog stereo

mixing, recording and playback capability.

Audio flows are converted with 20-bit resolution, up to

96 kHz, and benefit from direct access to microphones,

ST-Ericsson and the ST-Ericsson logo are trademarks of the ST-Ericsson group of companies

or used under a license from STMicroelectronics NV or Telefonaktiebolaget LM Ericsson.

All other names are the property of their respective owners.

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The STw5095 is a low-power, asynchronous, stereo audio

codec device with headphone amplifier for high-quality

listening and recording. With multiple, mixable analog inputs

DAC audio signals.

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 into most audio systems. It supports an extended

master clock range (any value between 4 and 32 MHz) and

multiple audio data rates, which are independent in AD

and DA paths. Moreover, it tolerates jitter on audio data

without downgrading performance. The audio data serial

interfaces (for AD and DA) can be master or slave, are I2S

• Easy software development on target application

• Application features complete MP3 player and FM radio

receiver

• Interactive schematics and register display windows that

exercise any chip configurations in real-time at a click of

a mouse

• Instant system analog connection and activation

• Handset, headset and speaker connectors

• Compliant with Windows XP/NT/2000/Millennium and 98