Motorola ASTRO Digital XTL 5000

7-32 Schematics, Component Location Diagrams, and Parts Lists: HUD4022A/HUD4025B (VHF) Main Board
May 25, 2005 6881096C74-B
Figure 7-30. HUD4025B RF 100W Power Amplifier (RF PA) Schematic (Sheet 1 of 2)
TP3520
A+
C3502
470pF
C3501
C3506
C3500
R3500
L3500
150nH L3501
6.8nH
470pF
.01uF
470pF
180
U3500
30C65
1
16
14
11
8
9
10
15
RFIN
4 5
12
13 17
6
7
2
3
VCNTRL
VD1
G2
RFOUT1
RF OUT2
VG1
VG2
NC1
GND1 GND2 GND3 GND4
EP
NC2
NC3
NC4
TP3500
IF3506 IF3507
IF3540
IF3514 IF3515
IF3516
IF3517
IF3518 IF3519
IF3520
IF3521
IF3522
IF3523
IF3524
SC3500
SC3501
IF3527
IF3543
AUDIO_A+_1
K9.1V_FGU
TX_INJ
IF3534
IF3535
MOSIA_1
EEPOT_EN_1
AD_EN_1
MISOA_1
PA_EN_1
R3567
SW_A+_RFPA
SW_A+_1
A+_1
A+
A+
A+
0
FGU
INTERFACE
1
I1
1
I1
IF3505
K9.1V_EN_1
DA_EN_1
SCKA_1
K9.1V_EN_2
DA_EN_2
SCKA_2
MOSIA_2
AD_EN_2
IF3500
IF3501
IF3502
IF3503
IF3504
POWER CONTROL
INTERFACE
CONTROLLER
INTERFACE
EEPOT_EN_2
R3501
0
IF3528
IF3529
IF3530
IF3531
IF3532
IF3533
RFPA_CNTRL
K9.1V
VGBIAS_1
VGBIAS_2
VGBIAS_3
VTEMP
VCURRENT
IF3544
IF3541
IF3542
AUDIO_GND_1
AUDIO_A+_2
AUDIO_GND_2
A+_2
SW_A+_2
MISOA_2
PA_EN_2
2
I2
2
I2
C3505
C3504
.01uF
L3502
150nH
1
R3521
R3520
R3525
R3524
R3523
R3522
20
20
20
20
20
20
C3521
120pF
C3522
C3526
L3520
470pF
C3520
68pF
.01uF
18.5nH
4.7uF
C3503
.01uF
*R3503*
5.1K
*R3502*
5.1K
C3525
C3524
*C3523*
C3541
62pF
C3544
91pF
*C3571*
68pF
R3529
0
R3528
0
R3527
10
R3526
1K
L3521
5nH
470pF
470pF
1
0.1uF
L3522
57R01
C3543
91pF
C3540
62pF
*C3570*
68pF
Q3520
M3520
HEATSINK
1
POS
S
D
C3579
*C3576*
C3542
C3545
C3551
75pF
C3550
75pF
C3549
75pF
C3548
75pF
R3543
R3542
R3541
R3540
1K
R3547
R3546
R3545
R3544
R3559
33
R3568
7.5
7.5
7.5
7.5
7.5
7.5
7.5
0
0.1uF
470pF
10uF
TP3540
1
M3540
HEATSINK
GND2
GND1
1
1 3 S1S2
2
Q3540
C3546
C3555
75pF
C3554
75pF
C3553
75pF
C3552
75pF
R3551
R3550
R3549
33
R3548
R3555
R3554
R3553
R3552
R3556
7.5
7.5
7.5
7.5
7.5
7.5
7.5
470pF
470pF
7.5
M3541
HEATSINK
GND2
GND1
12
Q3541
C3578
*C3577*
*C3567*
0.1uF
C3566
0.1uF
C3565
0.1uF
C3547
R3558
1K
R3557
R3565
0
1
1
1
1
2
3
U3560
LM50
VOUT
GND
POS
1
2
0
0
R3569
10uF
0.1uF
470pF
7.5
*R3566*
3
*U3563*
LM50
VOUT
GND
POS
TP3542
TP3541
TP3543
C3575
*C3574*
C3563
22uF
C3562
C3561
C3560
C3564
22uF
C3568
10uF
R3563
2.7
R3562
2.7
R3561
R3560
10
R3564
100K
1%
L3543
25nH
470pF
1000pF
470pF
0.1uF
0.1uF
L3544
57R01
5m
1
1
2
3
4
5
VR3500
24V
TP3544
U3561
INA138
OUT
VINPOS
VINNEG
GND VPOS
J3500-1
J3500-2
BATTERY
CONNECTOR
A+
NC
NC
C3559
C3558
30pF
*C3557*
56pF
*C3556*
56pF
*C3573*
56pF
C3572
100pF
*L3540*
25nH
L3541
L3542
25nH
L3545
18nH
470pF
25nH
OUTPUT NETWORK
INTERFACE
RX_FE
INTERFACE
IF3536 IF3537
IF3538
IF3539
RX_IN_1
RX_IN_2
RFPA_OUT
K9.1V_ON