DC1954A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
J11
V+
3.15V - 3.45V
REV
DESCRIPTION
APPROVED
DATE
2
PRODUCTION
MICHEL A.
10-03-13
__
V+
V+
E10
3.15V - 3.45V
+ C16
D
22uF
10V
3528
E11
GND
C14
1uF
0603
C15
0.01uF
0201
C17
0.01uF
0201
C18
0.01uF
0201
C19
0.01uF
0201
C20
0.01uF
0201
C21
0.01uF
0201
C25
0.01uF
0201
C26
0.01uF
0201
C27
0.01uF
0201
C8
0.1uF
C9
0.1uF
C10
0.1uF
C12
0.1uF
C13
0.1uF
C22
0.1uF
C23
0.1uF
C24
0.1uF
C28
0.1uF
C29
0.1uF
D
J10
GND
V+
R31
OPT
0603
CS
SDO
R32
OPT
0603
27
R16
OPT
V+
J9
28
R19
OPT
IN-
29
C2
0.1uF
30
13
GND
V+A
OUT1+
V+IN
OUT1-
GND
V+OUT1
IN+
V+OUT2
IN-
OUT2+
GND
OUT2-
V+IN
V+OUT2
TEMP
31
B
J2
Z2 *
OUT0SEL
15
14
16
V+OUT1
R20
49.9
SMA-R
GND
R4
0
OUT0SMA-R
C
12
R7
0
11
Z3
10
J3
*
OUT1+
R8
OPT
9
8
SMA-R
R6
GND
*
7
R9
0
6
Z4
5
J4
*
OUT1-
R10
OPT
4
3
SMA-R
R12
0
2
Z5
1
J5
*
OUT2+
R13
OPT
SMA-R
R11
*
GND
26
R1
GND
R14
0
Z6
37
25
R18
49.9
SMA-R
24
V+OUT0
V+A
OUT2SEL
R35
200K
SYNC
GND
IN+
C1
0.1uF
OUT0+
36
R17
OPT
23
OUT0+
SMA-R
R5
OPT
OUT0-
32
J8
22
J1
Z1 *
R3
OPT
*
V+OUT0
V+D
35
V+
SDI
V+A
21
*
QFN36UFF-4X7
SCLK
34
SDI
20
OUT1SEL
19
GND
SCLK
U1
33
C
CS
SMA
V+A
V+D
SYNC
SDO
18
J7
17
E9
SYNC
R2
0
OUT0SEL
V+
J6
*
R15
OPT
TEMP
SMA-R
E12
V+
V+
R29
OPT
0603
E13
GND
R27
OPT
0603
OUT1SEL
R30
OPT
0603
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402
ALL CAPACITORS ARE IN MICROFARADS, 0402
A
B
OUT2-
*
ASSY
U1
R1
R6
-A
-B
-C
-D
LTC6954IUFF-1
LTC6954IUFF-2
LTC6954IUFF-3
LTC6954IUFF-4
OPEN
OPEN
OPEN
OPEN
OPEN
OUT2SEL
R28
OPT
0603
OUT0SEL
1
2
3
H
L
Z1-Z2 Z3-Z4
OPEN
0.1uF
0.1uF
0.1uF
100 OHM 0.1uF
0.1uF
0 OHM
0 OHM
0 OHM
0 OHM
0 OHM
100 OHM 100 OHM 0.1uF
100 OHM 100 OHM 100 OHM 0 OHM
Z5-Z6
4
OUT0SEL
1
2
3
H
L
V+
OUT2SEL
OUT1SEL
JP2
1
2
3
H
L
V+
OUT2SEL
JP3
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
KIM T.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
TITLE:
SCHEMATIC
APP
ENG.
MICHEL A.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
LOW PHASE NOISE, TRIPLE OUTPUT CLOCK
DISTRIBUTION DIVIDER/ DRIVER
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
OUT1SEL
JP1
CUSTOMER NOTICE
R11
V+
3
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC6954IUFF-1/-2/-3/-4
REV.
2
DEMO CIRCUIT 1954A
10/03/2013, 10:30 AM
SHEET
1
1
OF
2
A
5
4
3
2
1
DC590 SPI INTERFACE
V+
D
1
V+ 2
5V
6
CS 4
SCK/SCL 7
MOSI/SDA 5
MISO
10
EEVCC 9
EESDA 11
EESCL 12
EEGND 14
AUX
3
4
R33
100
R23
4.99K
C3
0.1uF
1
C7
0.1uF
VCC(A) VCC(B)
2
GND
3
R26
0
0603
EEGND
SDI
C
U4
74LVC1T45GW
R40
100
WP
4
R36
100
V+
C5
0.1uF
V+
C6
0.1uF
2 GND VCC 5
4
ARRAY
SCL
SDA
WP
A2
A1
A0
EEPROM
13
8
3
6
5
7
3
2
1
3
SCLK
C4
0.1uF
8
R24
4.99K
R38
200K
6
VCC
R25
4.99K
R39
200K
1
D
CS
R34
100
U3
NC7WZ17P6X
U5
24LC025-I /ST
B
6
2 GND VCC 5
V+DIG CS SCLK SDI SDO
GND
GND
GND
C
1
V+
GND
J12
HD2X7-079-MOLEX
U2
NC7WZ17P6X
R22
200K
DIR
6
5
4
SDO
B
R37
200K
NOTE: EEPROM FOR BOARD IDENTIFICATION
CUSTOMER NOTICE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
KIM T.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG. MICHEL A. TITLE: SCHEMATIC
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
LOW PHASE NOISE, TRIPLE OUTPUT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
DISTRIBUTION DIVIDER/ DRIVER
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
IC NO.
DATE:
REV.
LTC6954IUFF-1/-2/-3/-4
N/A
SCALE = NONE
A
CLOCK
2
DEMO CIRCUIT 1954A
10/03/2013, 10:30 AM
SHEET
2
1
2
OF
2
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