STW5095_07 Datasheet, PDF (49/73 Pages) STMicroelectronics – Low-power asynchronous stereo audio Codec with integrated power amplifiers

Audio interfaces
Figure 10. Audio interfaces formats: DSP, SPI and PCM
DSP format delayed and non-delayed (default AD_CK/DA_CK polarity, ADHIZ=0)
{ ^SYNCP=0
DA_SYNC/
AD_SYNC
SYNCP=1
DA_CK/
AD_CK
DA_DATA
AD_DATA
12
n-1 n 1 2
n-1 n
MSB _{n-bit word Left data} LSB MSB _{n-bit word Right data} LSB
12
n-1 n 1 2
n-1 n
MSB n-bit word Left data LSB MSB n-bit word Right data LSB
STw5095
SPI format (slave only) (default AD_CK/DA_CK polarity, ADHIZ=1 - Stereo or Mono)
DA_SYNC/
AD_SYNC
DA_CK/
AD_CK
DA_DATA
AD_DATA
123
n-1 n
MSB n-bit word Left/Mono data LSB
x123
n-1 n
MSB n-bit word Left/Mono data LSB
High impedance
123
MSB n-bit word Right/Mono data
x123
MSB n-bit word Right/Mono data
PCM format (default AD_CK/DA_CK polarity, ADHIZ=1)
{ ^SYNCP=0
DA_SYNC/
AD_SYNC
SYNCP=1
DA_CK/
AD_CK
DA_DATA
AD_DATA
12
MSB
3
n-1 n
n-bit word Mono data
LSB
12
MSB
3
n-1 n
n-bit word Mono data
LSB
High impedance
1
MSB
1
MSB
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