2-8 VHF (136–174 MHz) 25–45W PCB/Schematics/Parts List
R0721
PA_SUPPLY
9V3_TX
E0701
C0716
C0712
L0708
C0707
C0738C0734
100MW
100MW
100MW
DNP
100MW
C0747
R0714
R0715
R0716
R0717
RD07GATE
TP0705
Q0704
1
2
3
1
D
S
G
2.4V @ VCONT=5V = 600MA BIAS
M0700
R0719
R0720
V_CONT
1
POS
DNP
C0727
C0731
R0718
V_G2
C0713
L0702
R0701
C0709
9V3_TX
DNP
C0783
L0717
C0725
TP0702
TP0700
Q0700
R0722
RD01DRAIN
RD01GATE
1
1
2
1
3
D
S
G
L0718
C0724
C0729
L0720
C0784
C0708
L0721
L0719
2.5V @ VCONT=5V = 75MA BIAS
DNP
R0704
R0702
C0706C0710
R0700
C0701
V_CONT
V_G1
+9.2DBM MAX
+5.2DBM MIN
L0777
C0778
C0703
PA_RO_TX1
C0779
C0776
TX1
1
IN
DNP
DNP
DNP
DNP
DNP
DNP
DNP
L0704
L0703
L0701
R0713
C0760
C0735
L0730
C0702
L0700
C0700
C0715
R0708
D0700
C0704
LO_PWR_PAD
MATCH12D
MATCH12A
MATCH12C
HI_PWR_PAD
13
2
250MW250MW
L0707 R0711
C0732
R0712
C0775
Q0701
ANTENNA_EN
1
4
6
3
2
5
47K
2.2K
47K
47K
PA_CTL_9V3
PA_VCO_9V3
PA_RO_9V3
PA_RO_9V3
9V3
PA_VCO_9V3
FINAL_BIAS
1
1
1
IN
OUT
OUT
R0723
TP0710
PA_RO_BIAS
R0739
V_CONTROL
V_CONT
FINAL_BIAS
BIAS
1
1
IN
TP0708
9V3
1
1%1%1% 1%
R0746C0764C0761R0743R0741C0754C0753R0737
2.2VDC(TX ONLY)
DNP
DNP
TP0707
R0710
R0742
R0740
TP0706
R0709
GATE_2
GATE_1
GATE1
11
GATE2
DNP
DNP
DNP
R0738
R0730
L0715
R0731
R0732
R0733
R0734
C0814
C0804
C0803
C0797C0799
GATE2
750MW
R0735
R0725
R0726
R0727
R0724
R0728
R0729
GATE_2
GATE_1
DNP
C0812
GATE1
DNP
DNP
C0801
C0802
L0709
C0798
C0796
DNP
C0749
C0794
C0744
C0743
L0714
C0741
C0793
R0736
E0703
C0742C0733
C0726
C0745
C0730C0748
C0723
C0740C0721C0737C0755
A+
Q0875
9V3_TX_SW_MN
8
7
6
3
2
1
3000 - 3099 POWER MANAGEMENT
REFERENCE DESIGNATIONS
700 - 849 PA
850 - 874 HBF
875 - 899 T/R SWITCH
900 - 999 POWER CONTROL
PA_RO_ANT_ENB
R0883
TP0709
R0882
C0885
Q0876
R0879
R0877
R0878
L0877
C0884
ANT_ENB
ANTENNA_EN
9V3_TX
1
1
3
1
2
5
4
IN
10K
47K
DNP
R0755
C0774
C0773
C0768
C0771
C0728
DNP
DNP
C0746
C0751
C0881
C0770
C0736
L0706
C0824
DNP
DNP
DNP
L0712
C0772
D0701
C0777
SH0700
2
1
L0850
C0851
C0852
L0716
C0850
L0713
L0875
DNP DNP
C0899
L0899
C0856
C0855
L0727
L0852L0724L0722
C0854C0750
L0851L0711
C0853 C0718
DNP
R0950
D0950
C0951
C0950
C0952
R0951R0952
L0950
L0951
REV_DETECTED
2
3
1
125MW
DNP
J0700
J0700
J0700
J0700
J0700
L0729
R0759
R0956
L0952
R0957
R0958
1
2
3
G1
G2
100MW
100MW
R0954
C0955
R0955
C0954
D0951
R0953
C0953
2
3
1
DNP
C0763
FWD_DETECTED
FWD_POWER
L0876
C0879
R0876
C0877
9V3_TX_SW_MN
PA_RXFE_RX_IN
RX_IN
1
OUT
D0876
1
2
4
3
L0885
C0876
C0875
C0880
D0875
DNP
C0883C0882
L0880
DNP
DNP
DNP
DNP
DNP
DNP
R0760
R0758
R0761
R0762
R0748
R0749
R0750
R0751
R0752
R0753
R0754
C0769
C0782
C0781
C0780
C0714
C0818C0752
L0710
R0756
C0762
C0766
C0758
C0759
C0756
C0757
Q0702
DRAIN
8
5
4
1
7
6
3
2
9
G2
S3
S4
S2
S1
G1
D2
CE
D1
-7DBM NOMINAL
12DB
TEST POINT TO CHECK REF OSC WARPING
DNP
DNP
C0720
C0719
R0706
C0705
R0707R0705R0703
TP0701
1
+10DBM
TP0704
Q0703
TP0703
GAINBLOCKDRAIN
1
31
42
1
RF_IN
GND1
GND2
VD_RF_OUT
E0700
9V3_PA
9V3_TX
VHF (136–174 MHz) 25–45W Transmitter Power Amplifier Schematic Diagram
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