Motorola Mototrbo - Page 257

UHF1 (403–470 MHz) 25–40W PCB/Schematics/Parts List 2-9
SH0901SH0900
2 1
2
1
C3019
U3002
C3016C3015
9V3
51
4
2
3
NC
VIN
GND
ENABLE
VOUT
DNP
DNP
DNP
DNP
DNP
DNP
DNP
DNP
DNP
R0909
L0900
C0909
R0908
D0900
R0907
R0906
C0910
L0901
R0937
R0936
C0908
R0905
DNP
DNP
DNP
DNP
DNP
DNP
R0938
C0924
L0902
R0911
C0913
R0910
C0912
R0912
FWD_POWER
PA_RO_PA_TEMP
R0934
R0935
C0921
U0903
9V3
TEMPSEN
9V3
1
2
1
3
OUT
VOUT
GND
POS
VSWR SENSE
DNP
R0710
R0709
PA_RO_VSWRSEN
R0965
R0924
R0923
TP0904
C0926
VSWRSEN
1
1
OUT
DNP
DNP
DNP
DNP
9V3 TO REV BIAS PIN IN LP MODE
C0920
PA_RO_ATT_ENB
R0927
R0926
R0925
Q0901
9V3_TX
LO_PWR_PAD
ATT_ENB
1
4
1 3
6
5
2
IN
C0923C0922
9V3
DNP
Q0900
4
1
3
6
5
2
U0901
C0906C0905
R0902
R0903
V_CONTROL
3
8
71
6
9
4
2
5
GND
VAPC
NC
COMM
VPOS
FLTR
VSET
ENBL
RFIN
NC
1.28V(27.5W)
1.35V(44W)
R0939
R0913
TP0900
C0911
R0904
C0907
1
DNP
R0940
R0915
R0914
RT0900
12
U0902
R0917
R0916
9V3
48
1
3
2
DNP
C0900
R0920
R0919
DNP
R0959
C0901
R0922
DNP
TP0901
R0921
C0916
1
2.01V(27.5W)
DNP
2.67V(44W)
C0930
U0902
R0931
C0919
TP0903
R0930
R0929R0928
C0917C0925
9V3
HI_PWR_PAD
FWD_DETECTED
48
7
5
6
1
0.21V(27.5W)
0.38V(44W)
TP0902
R0933
R0932
C0918
1
C0902
C0956
R0960 R0961
C0957
R0962
PA_RO_TX_DAC
REV_DETECTED
TX_DAC
9V39V3
1
IN
U0904
25
4
1
3
DNP
R0966
U0905
C0927
R0941
C0928
R0942
C0929
R0943
25
4
1
3
UHF1 (403–470 MHz) 25–40W Power Control Schematic Diagram