USB-2020 Wire Connection
Front View
Power LED
A red LED as power indicator
USB Connector B type, connect to Host(PC)
Volume UP
Volume Down
Mute
HID buttons, link to system’s mixer,
only workable when your system has
load audio mixer.
Audio Out
Connect to earphone or speakers.
Driving efficiency is 60mW, it can drive
passive speakers directly.
Audio In
Connect to Condenser Microphone
Bottom View
F.G.
Frame Ground. It’s optional. If you use this pin, it
can
reduce
EMI
radiation;
improve
EMI
performance and ESD protection.
GND
+Vs
Power input (+10V ~ +30V DC). It’s optional. If you
use an external power, it can reduce noise from
host’s USB power, and get better audio
performance.
