Only For Training And Service Purposes - LG GM210 Service Manual

3. TECHNICAL BRIEF
Analog Audio Output Drivers
Audio Output 1
PGA gain for Audio Output 1 can be set by using bits AudOut1Gain[4:0] in the AudOut12Control (0x21 )
register. Output 1 is used for 32Ω interface with differential output but can be used by single ended
interface.
And this model only uses passive filters between output port and Receiver.
Audio Output 2
PGA gain for Audio Output 2 can be set by using bits AudOut2Gain[4:0] in the AudOut12Control
(0x21) register. Output 2 is used for 8Ω. This port supports only a differential interface. And this
model only uses passive filters and Class D audio amplifier between output port and speaker. Audio
amplifier Gain is set by hardware component and gain is 6 times.
LGE Internal Use Only
LGE Internal Use Only
Figure 3-13-2 ABB Audio OUTPUT1
Figure 3-13-3 ABB Audio OUTPUT2
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Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes