1
1
2
2
3
3
4
4
D
D
C
C
B
B
A
A
Title
Number
Revision
Size
Letter
Date:
5/13/2017
Sheet of
File:
C:\Users\..\OCXO.SchDoc
Drawn By:
12V
GND
J1
4 Pin vertical header
GND
RF_OUT
12V_IN
R1
6.8K
R2
4.7K
GND
D1
ESD12VD3B-TP
-WARMING
OUTPUT
GND
C9
160pF
L2
0.8uH
RF_OUT
C4
100nF
GND
L1
100uH
GND
DJW
(C) 2001-2017 Pumpkin, Inc.
Doc. Rev: 01
1 of 1
Bus Interface Module - Top Sheet
750 Naples Street
San Francisco, California 94112
A
705-01667
OCXO 3xxx Module
U2
LT1716HS5#TRMPBF
GND
12V
C3
100nF
GND
GND
R5
0.1R
R4
100K
C2
470nF
U1
LM2940SX-12/NOPB
C1
47uF
J3
PJ-102H
GND
U3
MAX6350
C7
1uF
12V
12V
C5
2.2uF
C6
2.2uF
GND
C8
100nF
180mA Trip
317mA when warming
125mA Steady state
R3
150R
TP1
TP2
16.9MHz corner
R6
1K 0.01%
R8
1K 0.01%
OXCO_OUT
VCO
V_OXCO
5V_REF
J2
MMCX
TP3
TP4 TP5
-WARMING
For use in XL Microwave 3030/3080/3120/3200/3260 Frequency Counters.
26 Turn
R6/R8 Value:
Trim Range:
0
+/- 2.5V
1K
+/- 0.84V
2K
+/- 0.8V
5K
+/-0.23V
10K
+/-0.12V
15K
+/- 0.08V
Содержание UM-20
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