Audio Outputs Expansion Header J26 - Intrinsyc Open-Q 820 User Manual

Open-Q™ 820 (APQ8096) / 820Pro (APQ8096SG) µSOM Development Kit User Guide Version 1.4
Description
Digital MIC 1 and 2
data line
1.8V power supply
max 300mA
GND

3.8.12 Audio Outputs Expansion Header J26

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:
Description
Analog audio line out
1, positive differential
output
Analog audio line out
2, positive differential
output
Signal Pin NO
CDC_DMIC_DA J50[15]
TA0
VREG_S4A_1P J50[17]
8
GND J50[19]
Figure 15 J26 Audio Outputs Expansion Header
Table 3.8-6 Audio Outputs Expansion Header J26 Pin out
Signal Pin NO
CDC_LINE_OU J26[1]
T1_P
CDC_LINE_OU J26[3]
T2_P
Copyright Intrinsyc Technologies Corporation
Description
Digital MIC 3 and 4
data line
Clock for digital MIC
5 and 6
Digital MIC 5 and 6
data line
Description
Analog audio line
out 1, negative
differential output
Analog audio line
out 2, negative
differential output
31
Signal Pin NO
CDC_DMIC_DAT J50[16]
A1
CDC_DMIC_CLK2 J50[18]
CDC_DMIC_DAT J50[20]
A2
Signal
CDC_LINE_OUT1_N
CDC_LINE_OUT2_N
Pin NO
J26[2]
J26[4]