Intrinsyc LANTRONIX Open-Q 820 User Manual page 22

Domain
Buttons
Zoom / Volume Keys
Sensor IO Connector
GPIO / Education
connector Header
Micro SD (on bottom)
ANC Audio Jack
3-Digital Microphone via
audio input expansion
header
3-Analog Microphone
via audio input
expansion header
2-Loud Speaker via
audio output expansion
header
Open-Q™ 820 / 820Pro µSOM Dev Kit User Guide
Description
General Purpose SW
button
Power Button
Volume + key
Volume – key
24 pin Sensor Expansion
Connectors
20-pin general purpose IO
for SPI / I2C / GPIOs/
UIM/ UART functions and
other unused GPIOs from
PMIC and APQ education
header.
Micro SD card
Audio Jack supported
using WCD9335
Audio expansion
Supported using
WCD9335
Audio expansion
Supported using
WCD9335
Audio expansion
Open-Q 820 µSOM Development Kit
Specification
SMD Button
SMD Button
SMD Button
SMD Button
Support any user sensor
card,
Standard 24-pin ST Micro
PLCC support via optional
daughter card
Full BLSP1 (SPI/ UART/
I2C/ GPIO)
APQ GPIOs
MPPs
Power
4bit Micro SD card support
ANC audio jack providing
2lineout and 1 headset
drivers (with Qualcomm®
ANC technology)
Digital Audio header
Analog Audio header
Analog Audio header
Usage
Additional button for
general purpose
(connected to
APQ_GPIO120)
Power Button for
Suspend / Resume and
Power off
Volume +Key
Volume – Key
Available via Lantronix
optional accessories kit
Useful when user wants
to use UART GPIOs
pins as BLSP other
functions (GPIO/ I2C/
UIM/ SPI).
External Storage
Audio support
For Digital audio input
for Digital MIC, I2S
codec, Slim bus
interface.
For Analog audio input
for Analog MIC
(differential signal)
For loud speaker output
after signal has been
processed
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