Open-Q™ 835 Development Kit based on the Snapdragon™ 835 (APQ8098) Processor User Guide Version 1.0
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Copyright Intrinsyc Technologies Corporation
3.8.13 Audio Outputs Expansion Header J1602
Figure 17 J1602 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
J1602:
Table 3.8-12 Audio Outputs Expansion Header J1602 Pin out
Description
Signal
Pin NO
Description
Signal
Pin NO
Analog audio line out
1, positive differential
output
LINE_OUT1_P J1602[1]
Analog audio line out
1, negative differential
output
LINE_OUT1_N J1602[2]
Analog audio line out
2, positive differential
output
LINE_OUT2_P J1602[3]
Analog audio line out
2, negative differential
output
LINE_OUT2_N J1602[4]
Audio line single end
outputs GND reference
(connect to ground)
LINE_REF
J1602[5]
3.3V output power
supply
MB_VREG_3P
3
J1602[6]
Analog audio line out
1, single ended output
LINE_OUT1_P J1602[7]
Analog audio line out
2, single ended output
LINE_OUT2_P J1602[8]
Analog earpiece
amplifier out, positive
differential output
CDC_EAR_P
J1602[9]
Analog earpiece
amplifier out, negative
differential output
CDC_EAR_N
J1602[10]
GND
GND
J1602[11]
3.8V output power
supply
MB_VREG_BB
CARD
J1602[12]
Digital sound wire
data for WSA8810/
WSA8815 smart
speaker amplifier
CDC_SWR_
CLK
J1602[13]
Digital sound wire
data for WSA8810/
WSA8815 smart
speaker amplifier
CDC_SWR_D
ATA
J1602[14]