User Manual

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EAGLE WIRELESS INTERNATIONAL
185106-006
C
AUDIO ANALOG FRONT END
B
4 4Tuesday, May 14, 2002
Title
Size Document Number Rev
Date: Sheet of
+3.3V
AGND
GND
BIAS_MID
BIAS_MID
+3.3V
+3.3V
+3.3V
AGND
FAUDIOIN
AGND
TX_MOD
+3.3V
AGND
AGND
AGND
+3.3V
AGND
GND
+
-
U14D
LT1499/SO14
12
13
14
411
+
-
U14B
LT1499/SO14
5
6
7
411
+
C401
4.7uF
MH1
1
J5
SMA_5
MH6
1
MH2
1
R406
9.1K
R407
9.1K
R508
28.7K
TP7
MH3
1
+
-
U14C
LT1499/SO14
10
9
8
411
C403
3300pF
R402
47K
R408
9.1K
C404
4700pF
MH4
1
VR40010K
R507
10K
C402
3300pF
R403
47K
+
-
U14A
LT1499/SO14
3
2
1
411
R405
9.1K
R510
10K
MH5
1
VR404
10K
R509
10K
+
C406
4.7uF
C405
1800pF
R506
10K