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AK7756 Datasheet, PDF (2/27 Pages) Asahi Kasei Microsystems – DSP with Mono CODEC + Mic/Lineout Amp
■ Block Diagram
AVDD VSS2 MPRF
VCOM
DVDD DVDD18 VSS1
[AK7756]
MICBIAS
Mic
AIN/INP
INN
JX0/SDIN2
JX1
Line Out
AOUT
PMMB
MIC Power
Supply
AKM
DSP
Core
XTO
PLL
XTI
LFLT
PMADC
A/D
PMDAC
D/A
SELDI2
JX0E
JX1E
DIN2
DIN1
DOUT1
JX0
WDT/
CRC
JX1
DOUT2
DOUT3
RDY
μP
(I2C,SPI)/
EEPROM
(I2C)
Interface
I2S or
PCM
Interface
SELDO1
SELDO2
Memory
SI
EEST
SELDO3
PMOSC
OSC
I2CSEL pin
BICK
LRCK
SDIN1
SDOUT1
STO/RDY/SDOUT1
SDOUT2/RDY
EXTEEP/RQN
SCL/SCLK
SDA/SO
I2CSEL
EEST/SDOUT3/SI
IRSTN
Figure 1. Block Diagram
MS1218-E-00-PB
2
2010/08