DC1545A - Schematic

5
4
3
2
1
*
Z1
C12
(OPT)
R1
13.7
0.1%
*
C1
C9
GND 19
GND 20
GND 21
4 IF-
*
C8
TL3
J3
RF
*
C14
C
GND 13
6 GND
R2
13.7
0.1%
C4
100pF
GND 12
11 VCC
L2
100nH
*
GND 14
5 GND
C11
(OPT)
*
L3
RF 15
10 VCC
C2
*
TL2
VCC
TC4-1W+
C
*
9
6
VCC
1
GND 16
C3
8
2
J1
IF
GND 17
3 IF+
TL1
GND
4
GND 18
U1 LT5578IUH
2 GND
7
3
1 GND
LO 22
L1
100nH
C10
(OPT)
T1
4:1
D
GND 23
D
GND 24
*
C13
25 GND
J2
LO
C6
1nF
C5
10pF
C7
1uF
TP1
B
TP2
VCC
3.15V - 3.5V
GND
B
* NOTE: Component values depend on board version.
VERSION
IF FREQ. LO FREQ.
RF FREQ.
C1, C2
DC1545A-A
240MHz
2190MHz
1950MHz
82pF
33pF
DC1545A-B
140MHz
760MHz
900MHz
220pF
39pF
C9
C3
C8
4.7pF
L3
2.4nH
1.8pF
4
Z1
C13
0 Ohm
5.6pF
2.7pF
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAYSIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
1.5pF
12nH
CUSTOMER NOTICE
A
C14
3
APPROVALS
DRAWN
HELEN Z.
DATE
4/07/09
TECHNOLOGY
A
TITLE
LT5578IUH
HIGH LINEARITY UPCONVERTING MIXER
CHECKED
APPROVED
ENGINEER
SUNNY H.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
4/07/09
DESIGNER
Thursday, September 03, 2009
SIZE
CAGE CODE
DWG NO
REV
A
DC1545A-A/B
FILENAME:
SCALE:
2
SHEET
1
1
OF
1
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