Datasheet
LTC6431-15
13
643115f
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE 0402.
NOTE: UNLESS OTHERWISE SPECIFIED
CAL IN
CAL OUT
GND
+5V
OPTIONAL CIRCUIT
100-1200 MHz
FREQ.ASSY U1 T3, T4
*
R13,R14,R17,R18R3, R4 J8
OPT
OPT
OPT
1008
+IN
+OUT
J10
-C LTC6431IUF-15 OPT 0 OHM OPT STUFFOPT
JOHN C.PRODUCTION2 08-18-11
__
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
1
Monday, June 25, 2012
11
IF AMP/ADC DRIVER
KIM T.
JOHN C.
N/A
LTC643XIUF FAMILY
DEMO CIRCUIT 1774A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
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 MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
VCC
VCC
VCC
VCC
J7
SMA-R
R5
348
C11
1000pF
L1
560nH
C13
1000pF
C18
1000pF
JP2
HD2X4-100
12
34
56
78
L11
OPT
JP3
HD2X4-100
12
34
56
78
C21
1000pF
J11
+5V
C19
1000pF
R2
348
E6
C16
1000pF
J5
SMA-R
T1
SEE BOM
6
4
1
5
3
C8
62pF
C22
0.1uF
C17
1000pF
J6
SMA-R
C10
62pF
C12
62pF
E3
JP1
HD2X6-100
12
34
56
78
9 10
11 12
T2
SEE BOM
6
4
1
5
3
U1
*
2
14
1
24
4
6
8
10 21
19
17
22
20
18
16
5
7
9
11
15
12
13
3
23
25
DNC
GND
DNC
+IN
DNC
DNC
GND
DNC DNC
DNC
GND
VCC
DNC
+OUT
T_DIODE
DNC
DNC
VCC
DNC
DNC
DNC
DNC
DNC
GND
GND
C1
1000pF
J18
GND
R6
348
J10
SMA-R
*
C7
1000pF
C20
1000pF
C3
1000pF
applicaTions inForMaTion
Figure 2. DC1774A-C Demo Board Schematic
Figure 3. Demo Board
643115 F03