GX20
5 – 26
CONFIDENTIAL
Figure 21 SCHEMATIC DIAGRAM (19/24)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
KEY PWB-B (1/2)
VRF
2.9V
G
VTCXO
2.9V
VTCXO
VSYNTH
2.9V
G
VSYNTH
TP317
VRF
1
2
3
4
5
6
CHGIN
GND
Cont
Np(V
ref)
Vi
n
Vo
u
t
1
2
3
4
5
31
TPB332
TPB335
TPB334
TP345
VBAT_BB
VBAT_AP
VBAT
Vss
Vin
ON/OFF
Vout
Np
1
0V
0V
0V
1.67V
1.68V
1.36V
2
3
4
5
VBAT_S
NB
VIN
VOUT
GND
CONT
1
2
3
4
5
VBAT
VBAT
VBAT
TP321
TP346
TPB333
TP320
()
()
()
()
()
()
()
()
5-24 (2-C)
5-29 (10-C)
5-30
(1-F)
Q308
2SA1955 A
R349
2.2K
R338
820
LED306
YPY1
105C
R340
820
R342
820
LED308
YPY1
105C
R344
1K
LED304
YPY1
105C
LED302
YPY1
105C
LED305
YPY1
105C
LED303
YPY1
105C
R343
1K
R341
820
LED310
YPY1
105C
LED301
YPY1
105C
LED309
YPY1
105C
LED307
YPY1
105C
R337
1.5K
R336
820
R335
1K
R339
820
Q305
CPH6311
C321
0.01
D303
RB160M30
R348
0.18
(1/2W)
C330
1
R326
10K
IC303
TK11129CSIL
2.9V REGULATOR
D305
1SS388
D304
1SS388
C350
0.01
C349
2.2
C318
2.2
IC306
TK71635S
HIGH SPEED LDO
REGULATOR
C331
2.2
C329
0.01
IC302
NJM2871F03
3.0V REGULATOR
C340
0.1
C341
1
C342
0.1
D306
CUS01
D309
CUS01
R345
1.5K
LED31
1
YPY1
1
05C
R346
1K
LED312
YPY1
1
05C
C332
22
R325
1.2K
Q303
2SC4617 R
R327
68K
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
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