Open-Q™ 820 (APQ8096) / 820Pro (APQ8096SG) µSOM Development Kit User Guide Version 1.4
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Copyright Intrinsyc Technologies Corporation
Description
Signal
Pin NO
Description
Signal
Pin NO
Digital MIC 1 and 2
data line
CDC_DMIC_DA
TA0
J50[15]
Digital MIC 3 and 4
data line
CDC_DMIC_DAT
A1
J50[16]
1.8V power supply
max 300mA
VREG_S4A_1P
8
J50[17]
Clock for digital MIC
5 and 6
CDC_DMIC_CLK2 J50[18]
GND
GND
J50[19]
Digital MIC 5 and 6
data line
CDC_DMIC_DAT
A2
J50[20]
3.8.12 Audio Outputs Expansion Header J26
Figure 15 J26 Audio Outputs Expansion Header
This header expansion provides the following audio outputs:
1. 2 differential analog audio line out
2. 2 single ended analog audio line out
3. 1 differential analog earpiece amplifier output (no external amp needed)
4. 2 speaker amplifier enable control
5. Voltage rails to support analog and digital mics
The table below outlines the pin out information of the audio outputs expansion header J26:
Table 3.8-6 Audio Outputs Expansion Header J26 Pin out
Description
Signal
Pin NO
Description
Signal
Pin NO
Analog audio line out
1, positive differential
output
CDC_LINE_OU
T1_P
J26[1]
Analog audio line
out 1, negative
differential output
CDC_LINE_OUT1_N
J26[2]
Analog audio line out
2, positive differential
output
CDC_LINE_OU
T2_P
J26[3]
Analog audio line
out 2, negative
differential output
CDC_LINE_OUT2_N
J26[4]
