EasyManuals Logo

Quectel EC25 User Manual

Quectel EC25
232 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #194 background imageLoading...
Page #194 background image
LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 193 / 231
Parameter
12.7. AT+QDAI Digital Audio Interface Configuration
The command is used to configure the digital audio interface. When <io>=1, customers can define the
PCM formats by themselves. In the following conditions, the module can be used directly with default
settings (master mode, short-synchronization, 2048K clock frequency, 16-bit liner data format, 8K
sampling rate).
When <io>=2, and the external codec chip linked with PCM interface is the NAU8814 model and
configurable through the I2C
when <io>=3, and the external codec chip linked with PCM interface is the ALC5616 model and
configurable through the I2C
when <io>=5 and the external codec chip linked with PCM interface is the TLV320AIC3104 model
and configurable through the I2C
If there is any error related to ME functionality:
+CME ERROR: <err>
Maximum Response Time
300ms
Reference
Quectel
Test Command
AT+QDAI=?
Response
+QDAI: (list of supported <io>s),(list of supported
<mode>s),(list of supported <fsync>s),(list of supported
<clock>s),(list of supported <format>s),(list of supported
<sample>s),(list of supported <num_slots>s),(list of
supported <slot_mapping>s)
OK
Read Command
AT+QDAI?
Response
+QDAI:
<io>[,<mode>,<fsync>,<clock>,<format>,<sample>,<num
_slots>,<slot_mapping>]

Table of Contents

Other manuals for Quectel EC25

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Quectel EC25 and is the answer not in the manual?

Quectel EC25 Specifications

General IconGeneral
CategoryLTE Module
LTE TDDB38/B40/B41
WCDMAB1/B5/B8
GSM850/900/1800/1900 MHz
Data ratesLTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSSGPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature-40°C to +85°C
Form FactorLCC
Storage Temperature-45°C to +90°C
SIM Interface1.8V/3.0V
Antenna InterfaceMain, Diversity, GNSS
LTE FDDB1/B3/B5/B7/B8/B20
InterfacesUSB 2.0, UART, PCM, GPIO
Operating Voltage3.3V - 4.3V
ProtocolsTCP/IP, UDP, FTP, HTTP, HTTPS
CertificationsCE, FCC, PTCRB, GCF, RCM, IC

Related product manuals