User Manual Part 3

8-9
EPROM
DAC
MUX
N/C
nCS
SPI_CLK
SPI_MOSI
nATTEN
ADDR1
RF_CLK+
RF_DAT+
RF_FS
ADDR2
SPI_ENA
SPI_CLK
SPI_MISO
SPI_MOSI
RX_PLL_LOCK
nT/R
TX_MOD1
TX_MOD2
SPI_MISO
TEMP
PWR_CTL
LOCK_ENA
nTX_NAP
ADDR2
ADDR1
PLL1_CS
SPI_ENA
RXBE_CS
PLL2_CS
TX_PLL_LOCK
ATTEN
+3.3V
+3.3V +5.5V UNSW_BAT1
UNSW_BAT
+5VR
+3.3V
+3.3V
+3.3V
UNSW_BAT1
J2
CON26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
CP4
47pf
1
8
27 36
4
5
CP1
47pf
18
27
36
45
TP24
TP2
R32
10K
U32
AT25010
1
2
3
4
5
6
7
8
CS
Q
WP
DNG
D
CLK
HOLD
CCV
TP17
TestPoint
R14
10K
TP25
P5
STPAD
1
C115
33pf
C199
.01uF
TP20
U36
74HC138
8
15
14
13
12
11
10
9
7
1
2
3
5
4
6
61
DNG
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
A
B
C
G2B
G2A
G1
CCV
P4
STPAD
1
U15
74V1G14
2
3
4
5
P6
STPAD
1
RP1
1K
18
27
36
45
CP3
47pf
1
8
27 36
4
5
TP22
+
C35
4.7uf
P1
PAD
1
C169
.01uF
FB1
FB-1210SO
12
TP19
CP2
47pf
18
27
36
45
P7
STPAD
1
C29
.01uf
P2
PAD
1
R42
10K
TP18
C200
.01uF
P8
STPAD
1
TP23
F1
FUSE0603
P3
PAD
1
TP5
U31
AD5308
3
4
41
6
5
16
2
15
8
7
10
11
12
13
9
1
CCV
VoutA
DNG
VoutC
VoutB
SCLK
nSYNC
DIN
REFabcd
VoutD
VoutE
VoutF
VoutG
VoutH
REFefgh
LDAC
RP2
1K
18
27
36
45
N
OTE: Individual replacement parts are not available for the
R
F board, so the entire board must be replaced if it is defective.
VHF RF BOARD SCHEMATIC (PAGE 2 OF 6)