AK4679EG Datasheet, PDF (46/220 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with DSP and MIC/RCV/HP/SPK/LINE-AMP

OPERATION OVERVIEW
[AK4679]
The figure shown below is one the connection example with aAudio Processor, Base-band processor, BT module and
AK4679. Since the clock control block (CGU) provides DSP master clock, stable clock from Audio Processor or
Base-band must be supplied to the AK4679 during an operation.
AK4679
BICK
LRCK
SDTI
SDTO
BCLK3
SYNC3
SDTI3
Audio I/F I2S
Audio Processor
SCLK
LRCK
SDO
SDI
DSP
SDT03
BCLK1
SYNC1
SDTI1
SDTO1
PCM I/F I2S
Base Band
BICK
SYNC
SDOUT
SDIN
BICKA
SYNCA
SDTIA
SDTOA
SDTI4
SDTO4
BCLK2
SYNC2
SDTO2
SDTI2
PCM I/F I2S
Bluetooth
SDOUT
BICK
SYNC
SDIN
BICKB
SYNCB
SDTIB
SDTOB
Figure 38. Connection Diagram Example
MS1402-E-06
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2013/02