Open-Q™ 820 (APQ8096) / 820Pro (APQ8096SG) µSOM Development Kit User Guide Version 1.4
32
Copyright Intrinsyc Technologies Corporation
Description
Signal
Pin NO
Description
Signal
Pin NO
Audio line outputs 3
and 4 GND reference
CDC_LINE_RE
F
J26[5]
3.3V output power
supply
MB_VREG_3P3
J26[6]
Analog audio line out
3, single ended
output
CDC_LINE_OU
T3
J26[7]
Analog audio line
out 4, single ended
output
CDC_LINE_OUT4
J26[8]
Analog earpiece
amplifier out, positive
differential output
CDC_EAR_P
J26[9]
Analog earpiece
amplifier out,
negative differential
output
CDC_EAR_N
J26[10]
GND
GND
J26[11]
3.8V output power
supply
MB_VREG_SOM
J26[12]
Digital soundwire
data for WSA8810/
WSA8815 smart
speaker amplifier
CDC_SWR_CL
K
J26[13]
Digital soundwire
data for WSA8810/
WSA8815 smart
speaker amplifier
CDC_SWR_DATA
J26[14]
Speaker amplifier
enable 1
SPKR_AMP_EN
1
J26[15]
Speaker amplifier
enable 2
SPKR_AMP_EN2
J26[16]
1.8V output power
supply
VREG_S4A_1P
8
J26[17]
12V output power
supply
DC_IN_12V
J26[18]
5.0V output power
supply
MB_VREG_5P0
J26[19]
GND
GND
J26[20]
3.8.13 On Board PCB WLAN Antenna
The Open-Q 820 / 820Pro µSOM carrier board has two on board WLAN PCB antennas that
connects to the QCA6174 WiFi module on the µSOM via coaxial cables that attaches to
MH4L receptacles. These antennas connect to the µSOM in the following configuration:
o
WLAN1 on the carrier board connects to ANT2 on the QCA6174 WiFi module
o
WLAN0 on the carrier board connects to ANT1 on the QCA6174 WiFi module