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User’s Manual
ECM-3612 User’s Manual
37
2.3.11 Audio Connector (CN5)
Signal PIN PIN Signal
Line out R 1 2 Line out L
GND 3 4 GND
Line in R 5 6 Line in L
Mic In 7 8 Mic Bias
NC 9 10 NC
2.3.11.1 Signal Description – Audio Connecter (CN5)
Signal Signal Description
Mic / Mic Bias
The MIC signal is used for microphone input. This input is fed to the left
microphone channel.
Mic Bias provides 3.3V supplied through 3.2K Ω with capacitive decoupling to
GND. This signal may be used for bias of some microphone types.
Line-In L/R Left and right line in signals.
Line-Out L/R
Left and right line out signals. Both signals are capacitor coupled and should have
GND as return.