
Schematic Diagrams, Overlays, and Parts Lists
5-11
NU
NU
110K
U3701_IADAPT
U3701_IOUT
NU
(SOURCE)
(TX)
(RX)
NU
NU
NU
NU
For measuring low port resp.
NU
NU
NU
NU
NC
R3751
2.2uF
NC
NC
C3755
2.
2uF
R3721
0
C3744
220pF
NC
220pF
.01uF
C3704
.0
1u
F
.0
1u
F
C3734
.01uF
TRB
100K
R3720
16.8MHz
GND
2
OUT
3
VCC
4
VCON
1
0.
1u
F
45J68
Y3762
0.1uF
C3712
470pF
4
70p
F
C3715
22pF
16.8MHz
NC
22p
F
C3707
C3705
0.
1uF
TRB_1_FN
0.1uF
220p
F
C3742
220pF
220p
F
C3746
GND
5
IN
2
NR
4
OUT
3
SD
220pF
NC
NC
ADP
3300
U3711
6
ERR
1
1uF
NC
NC
1u
F
C3724
R3752
130K
1
GND
4
GND1
3
OUT
6
IN
NC
C3763
Y3761
16.8MHz
NC
C3711
10.
0u
F
150K
10uF
R3761
C3723
L3731
2.2uH
LOCK
2.
2u
H
0.
00
R3762
C3762
C3761
.0
0
NC
PRESC
.0
0
C3710
2.2uF
100K
2.
2u
F
R3727
100K
R3701
10
0
100
C3727
100
p
F
DATA
MODIN
100pF
L3701
390n
H
390nH
.01uF
C3703
.01u
F
4.7uF
C3714
4.
7u
F
C3701
.0
1u
F
NC
.01uF
C3743
220pF
NC
NC
220p
F
15
0
R3703
150
3.3V
SWB+
VCO_MOD
R3799
0
0.1uF
C3709
0.
1u
F
4.
7u
F
4.7uF
C3706
1000pF
C3752
1000p
F
.01uF
CLK
C3735
C3725
2.
2u
F
NC
2.2uF
C3713
D3761
C3751
0.1uF
5V
T5
5V
NC
R5
LOCK_1_FN
0
R3760
Q3721
UMC5NTL
4
1
2
5
3
C3741
4
1
K1
2
K2
3
K3
.00
D3701
A1
6
A2
5
A3
5V
VCTRL
.01uF
.0
1u
F
C3732
100
R3741
10
0
0.
1u
F
0.1uF
VSF
C3754
TP3702
1
C3702
.0
1u
F
0.1uF
.01uF
NC
0.
1u
F
C3708
R3702
R3722
1K
C3722
1K
C3733
2.2uF
4.
7uF
2.
2u
F
23
XTAL2
24
4.7uF
C3753
21
VCP
47
VMULT1
15
VMULT2
14
VMULT3
12
VMULT4
11
13
VRO
WARP
25
XTAL1
35
REFSEL
18
SFBASE
27
SFCAP
26
SFIN
30
SFOUT
28
TEST1
37
TEST2
38
VBPASS
17
NC2
29
NC3
31
PD_GND
44
5
PD_VDD
PREIN
32
PRE_GND
33
PRE_VDD
34
PVREF
36
FREFOUT
19
IADAPT
45
INDMULT
16
IOUT
43
4
LOCK
MODIN
10
MODOUT
41
NC1
20
BIAS1
40
BIAS2
39
CCOMP
42
CEX
9
CLK
8
DATA
7
DGND
6
DVDD
U3701
63A2
7
ADAPTSW
46
AGND
22
AUX1
48
AUX2
1
AUX3
2
AUX4
3
AVDD
K2
2
K3
3
CSX
D3702
A1
6
A2
5
A3
4
K1
1
R3705
33K
33K
R3726
15
0
150
100
R3704
8.2pF
R3763
BIAS_ADJ
C3726
8.2p
F
R3723
10
0
100
.0
1u
F
.01uF
220pF
C3745
NC
C3731
220pF
TP3701
1
Figure 5-9. 200 MHz Frequency Synthesizer Schematic Diagram
Summary of Contents for HT1250-LS+
Page 10: ...viii ...
Page 12: ...x Product Safety and RF Exposure Compliance ...
Page 16: ...1 4 Introduction ...
Page 58: ...4 22 Maintenance ...
Page 64: ...5 6 Schematic Diagrams Overlays and Parts Lists ...