UMTS/HSPA Module Series
WCDMA UGxx Audio Design Note
WCDMA_UGxx_Audio_Design_Note Confidential / Released 26 / 56
6
Audio AT Command Description
This chapter will introduce the common audio related AT commands. For more details, please refer to
document [3]
.
6.1. AT+QDAC Digital Audio Interface Configuration
AT+QDAC
is used to configure the digital audio interface. While
<io>
=1, you can define the PCM
interface by yourself; while
<io>
=2, and the external codec chip linked with PCM interface is the
NAU8814 model through the I2C, the module can be used directly and set by the default configurations.
while
<io>
=3, and the external codec chip linked with PCM interface is the ALC5616 model through the
I2C, the module can be used directly and set by the default configurations. while
<io>
=4, and the external
codec chip linked with PCM interface is the MAX9860 model through the I2C, the module can be used
directly and set by the default configurations.
AT+QDAC Digital Audio Interface Configuration
Test Command
AT+QDAC=?
Response
+QDAC:(1-4),(0,1),(0-8),(0-2),(0,1),(0,1)
OK
Read Command
AT+QDAC?
Response
+QDAC:<io>[,<mode>,<sample_rate>,<data_length>,<cha
nnel_mode>,<data_format>]
OK
Write Command
AT+QDAC=<io>[,<mode>,<sample_ra
te>,<data_length>,<channel_mode>,<
data_format>]
Response
OK
ERROR
Maximum Response Time
300ms
Quectel
Confidential
