DC1774A - Schematic

5
4
3
2
1
REVISION HISTORY
3
4
4
5
6
7
8
9
10
11 12
SMA
2
3
4
5
6
C2
1000pF
R3
*0603
B
C9
62pF
2
4
6
8
1
3
5
7
19
DNC
20
21
22
VCC
DNC
+OUT
*
DNC
GND
DNC
T_DIODE
DNC
DNC
DNC
GND
DNC
-OUT
R14
*
0603
DNC
U1
DNC
L1
560nH
C22
0.1uF
T4
4
15
R19
0
14
OPT
C15
1000pF
C4
1000pF
13
0603
0603
17
16
*
*
C21
1000pF
C3
1000pF
18
DNC
-IN
J9
3
1
-IN
OPT
C14
1000pF
2
L11
OPT
1008
*
J10
3
*
+OUT
SMA
5
6
J8
1
*
-OUT
SMA
R18
L22
OPT
1008
12
5
1
DNC
*
6
11
SMA
C
R4
R17
8
+IN
VCC
JP1
HD2X6-100
OPT
T3
1
DATE
08-03-12
JP2
HD2X4-100
OPT
R2
348
0603
J7
C7 VCC
1000pF
C8
62pF
25
*
CAL OUT
SMA
DNC
R13
APPROVED
JOHN C.
THIS IS A UNIVERSAL PCB, DESIGNED TO
ACCOMMODATE MULTIPLE VERSIONS OF THE IC.
REFER TO SIMPLIFIED SCHEMATIC IN FIGURE 3 OF
DC1774A DEMO MANUAL.
J6
1
10
C1
1000pF
C
R6
348
6
C17
1000pF
GND
E6
C12
62pF
VCC
C13
1000pF
7
GND
4
DESCRIPTION
PRODUCTION
D
5
GND
3
2
T2
GND
J18
REV
__
SEE BOM
4
3
C19
1000pF
C18
1000pF
5
GND
C16
1000pF
9
SMA
D
R5
348
24
SEE BOM
1
6
C10
62pF
23
T1
J5
CAL IN
C11
1000pF
+IN
OPTIONAL CIRCUIT
ECO
*
L2
560nH
R1
348
0603
VCC
J11
B
+5V
C23
0.1uF
4
6
8
3
5
7
C20
1000pF
2
NOTE: UNLESS OTHERWISE SPECIFIED
1
VCC
C5
1000pF
E3
+5V
JP3
HD2X4-100
OPT
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE 0402.
2. ALL DNC PINS ON U1 ARE FOR LINEAR USE ONLY.
*
A
ASSY
-A
-B
-C
ASSY
-A
-B
-C
U1
LTC6430IUF-15
LTC6430IUF-15
LTC6431IUF-15
C2,C4
1000pF, 0402
1000pF, 0402
OPT
5
FREQ.
100-300 MHz
400-1000 MHz
100-1200 MHz
C5
1000pF, 0603
1000pF, 0603
OPT
T3, T4
ADT2-1T+
ADTL2-18
OPT
C9
62pF
62pF
OPT
R3, R4 R13,R14,R17,R18
J8
0 OHM
OPT
STUFF
0 OHM
OPT
STUFF
OPT
0 OHM
OPT
C14,C15
1000pF, 0402
OPT
OPT
4
C23
0.1uF
0.1uF
OPT
L2
560nH
560nH
OPT
J10
OPT
OPT
STUFF
R1
348
348
OPT
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY 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.
3
TECHNOLOGY
KIM T.
JOHN C.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
IF AMP/ADC DRIVER
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC643XIUF FAMILY
REV.
1
DEMO CIRCUIT 1774A
08/03/2012, 03:15 PM
SHEET 1
1
OF 1
A
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