Service Manual
22
6.2.14.3 TX Audio Path
The st s t kin MIC dio a P10_Mic_IN and DB26 _IN. The former is
from the accesso onnected to 10-Pin interface on the front panel, while the latter is from Pin 2 of
the further development port DB26 (J701). The EXT_MIC_C l can d through menu
or programming software to activate MMP10_Mic_IN or DB26_Ext_Mic_IN.
TX OMAP via McBSP1 after processed by CODEC, and is transmitted via the TX circuit after DA
conversion and modulation. See the following figure:
TCP/IP is used to achieve remote monitoring and other exp
andable functions. The block diagram is
sy em ha wo ds of au sign ls: MM _Ext_Mic
ry c the
TRL
signa be configure
This signal is sent to DSP of
Figure 6-23 TX Audio Path
6.2.15 TCP/IP
shown as below:
FLASH-OE
FLASH-WE
FLASH-CS0
OE
WR
CS
Figure 6-24 TCP/IP Block Diagram
TX
OMAP5912
U102
DAC
TLV5614
U304
ADC
U501
CODEC
Mod1
Mod2_RFCS
MMP10_Mic_IN
DB26_Ext_Mic_IN
MCBSP2 MCBSP1
EXT_MIC_CTRL
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