Audio Outputs Expansion Header J26; Figure 16 J26 Audio Outputs Expansion Header - Intrinsyc Lantronix Open-Q 820 User Manual

Description
Clock for digital MIC 1 and
2
Digital MIC 1 and 2 data
line
1.8V power supply max
300mA
GND

3.8.13 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:
Open-Q™ 820 Dev Kit User Guide
Signal Pin
NO
CDC_DMIC_CLK0 J50[13
]
CDC_DMIC_DATA0 J50[15
]
VREG_S4A_1P8 J50[17
]
GND J50[19
]

Figure 16 J26 Audio Outputs Expansion Header

Description
Clock for digital MIC 3 and
4
Digital MIC 3 and 4 data
line
Clock for digital MIC 5 and
6
Digital MIC 5 and 6 data
line
Open-Q™ 820 Development Kit
Signal Pin
NO
CDC_DMIC_CLK1 J50[14]
CDC_DMIC_DATA J50[16]
1
CDC_DMIC_CLK2 J50[18]
CDC_DMIC_DATA J50[20]
2
34