STW5095 Datasheet, PDF (1/69 Pages) STMicroelectronics – Low Power Asynchronous Stereo Audio Codec with Integrated Power Amplifiers

STw5095
Low Power Asynchronous Stereo Audio Codec
with Integrated Power Amplifiers
PRELIMINARY DATA
Features
■ 20 bit audio resolution, 8kHz to 96kHz
independent rate ADC and DAC
■ 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
■ I²C/SPI compatible control I/F
■ 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
■ Two programmable master/slave serial audio
data interfaces (I²S, SPI, PCM compatible and
other formats)
■ 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
Analog inputs
■ Selectable stereo differential or single-ended
microphone amplifier inputs with 51dB range
programmable gain
■ One microphone biasing output
■ Microphone plug-in and push-button detection
input
STw5095
TFBGA64 5x5 (64 pins)
■ Selectable stereo differential or single-ended
line inputs with 38 dB range programmable
gain
Analog output drivers
■ Stereo headphones outputs driving capability:
40 mW (0.1% THD) over 16Ω with 40 dB range
programmable gain
■ Common mode voltage headphones driver
(phantom ground)
■ Balanced loudspeaker output driving
capability: up to 500mW (V_CCLS>3.5V; 1%
THD) over 8Ω with 30dB range programmable
gain
■ Transient supression filter during power up and
power down
■ Balanced/unbalanced stereo line outputs
driving capability 1kΩ
Applications
■ Digital cellular telephones with mp3 player,
stereo recorder, fm radio stereo listening and
recording functions, live music recording
■ Portable digital players and recorders
November 2005
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
Rev 1.0
1/69
www.st.com
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