User's Manual

Interface Description DTS-800 Reference Manual Application Information
01-DTS800 CDK-1 X1 AnyDATA.NET Proprietary – Use Subject to
Restrictions 11
The CODEC Interface configured by internal and external figures.
If use internal CODEC Interface, additional glue logic is not necessary. The modem provides
very simple audio interface.
Otherwise, An external CODEC is necessary support for car-kit system. The modem provides
PCM CODEC Interface.
3.2.1 Internal CODEC Interface
The modem contains analog audio interface circuitry. Contained audio interface
supports all of required conversation and amplification stages for the audio front end.
The audio interface includes the amplification stages for both the microphone and
earphone. The interface supports one differential microphone input and one differential
earphone output.
NAME DESCRIPTION CHARACTERISTIC
MIC + MIC Input Analog Input
MIC - EAR/MIC Set Detect Logic Input
EAR Earphone Output Analog Output
GND_A Audio Ground
• Analog Audio Pinouts
3.2.2 External CODEC Interface
The PCM CODEC interface used to car-kit audio system. This interface is optional item.
External CODEC interface signals are below :
NAME DESCRIPTION PINOUTS
AUX_PCM_CLK PCM Clock 13’th of 60-Pin Connector
AUX_PCM_DIN PCM Data Input 9’th of 60-Pin Connector
AUX_PCM_DOUT PCM Data Output 11’th of 60-Pin Connector
AUX_PCM_SYNC PCM Sync. 14’th of 60-Pin Connector
• Digital CODEC Pinouts
3.3 UART Interface