AK4671_10 Datasheet, PDF (6/166 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/RCV/HP-AMP

[AK4671]
■ Handling of Unused Pin on the System
The unused I/O pins on the system should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
MPWR, MDT, VCOC, ROUT3/LON, LOUT3/LOP,
ROUT2, LOUT2, MUTET, ROUT1/RCN,
LOUT1/RCP, RIN4/IN4−, LIN4/IN4+, RIN3/IN3−,
LIN3/IN3+, RIN2/IN2−, LIN2/IN2+, RIN1/IN1−,
LIN1/IN1+, VCOCBT, SAIN1, SAIN2, SAIN3
MCKO, SDTOA, SDTOB, GPO1, GPO2, CDTO
MCKI, SDTIA, SDTIB
BICKA, SYNCA, BICKB, SYNCB
Setting
These pins should be open.
These pins should be open.
These pins should be connected to VSS4.
When all pins are unused, these pins should
be connected to VSS4 and PMPCM bit
must be always “0”.
When either PCM I/F A(BICKA/ SYNCA)
or PCM I/F B(BICKB/SYNCB) is used,
unused pins are connected to pull-down/up
resistor of about 100kΩ.
MS0666-E-02
-6-
2010/06