AK4955 Datasheet, PDF (98/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
Digital
Ground
DSP
µP
Analog
Ground
Top View
MCKI
SDTI
RIN1
LIN1
SVDD
SPN
BICK
LRCK
ROUT
LVDD
SPP
VSS3
VSS2
SDTO
DVDD
TVDD
LOUT
RIN2
AK4955
MIN
LIN2
VSS1
VCOM
MPWR REGFIL
MCKO
CDTIO
VOUT
I²C
AVDD
VSS1
CCLK
CSN
PDN
VIN
VSS1
PVEE
Figure 76. Digital Block Connection Diagram (3-wire Serial Mode; I2C pin = “L”),
Note:
- All digital input pins must not be allowed to float.
- When the AK4955 is used in master mode, LRCK and BICK pins are floating before M/S bit is changed to
“1”. Therefore, a pull-up or pull-down resistor around 100kΩ must be connected to LRCK and BICK pins
of the AK4955.
MS1343-E-00
- 98 -
2011/12