Linear Technology DC1705C, Demo Manual

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10
dc1705cfb
DEMO MANUAL DC1705C
SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
VCO
2.24 TO 3.74 GHz 3.08 TO 4.91 GHz 3.84 TO 5.79 GHz
ASSY
U1
*
-A
LTC6946IUFD-1
-B
LTC6946IUFD-2
-C
LTC6946IUFD-3
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402 ALL CAPACITORS ARE IN MICROFARADS, 0402.
4.20 TO 6.39 GHz
-D
LTC6946IUFD-4
RZ
CI1
CI2
CP
453 OHMS
0.022uF
453 OHMS 453 OHMS 536 OHMS
0.022uF 0.022uF 0.01uF
6800pF 6800pF 6800pF 0.01uF
2700pF 2700pF 2700pF 1500pF
3.3V
5V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
CS
SCLK
SDO
SDI
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
CHRIS P.
REBUILD WITH CHANGE
__
1
10-02-14
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
CHRIS P.
REBUILD WITH CHANGE
__
1
10-02-14
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
CHRIS P.
REBUILD WITH CHANGE
__
1
10-02-14
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
1
DEMO CIRCUIT 1705C
Thursday, October 02, 2014
12
ULTRALOW NOISE & SPURIOUS INTEGER-N
N/A
LTC6946IUFD FAMILY
KIM T.
CHRIS P.
SYNTHESIZER WITH INTEGRATED VCO
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
1
DEMO CIRCUIT 1705C
Thursday, October 02, 2014
12
ULTRALOW NOISE & SPURIOUS INTEGER-N
N/A
LTC6946IUFD FAMILY
KIM T.
CHRIS P.
SYNTHESIZER WITH INTEGRATED VCO
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
1
DEMO CIRCUIT 1705C
Thursday, October 02, 2014
12
ULTRALOW NOISE & SPURIOUS INTEGER-N
N/A
LTC6946IUFD FAMILY
KIM T.
CHRIS P.
SYNTHESIZER WITH INTEGRATED VCO
C6 1uF C6 1uF
L2 68nH
0402HPH-68NXJL
5%
L2 68nH
0402HPH-68NXJL
5%
C12 0.01uF C12 0.01uF
C8 1uF
16V
0805
C8 1uF
16V
0805
J3
SMA-R
REF OUT
J3
SMA-R
REF OUT
JP1
GND
3.3V
MUTE
JP1
GND
3.3V
MUTE
1 3 2
C20 100pF 5% C20 100pF 5%
J1
SMA-R
REF+ IN
J1
SMA-R
REF+ IN
+
C2 330uF 10V 7343
+
C2 330uF 10V 7343
C9 1uF 16V 0805 C9 1uF 16V 0805
C16 2.2uF
16V 0805
C16 2.2uF
16V 0805
L1 68nH
0402HPH-68NXJL
5%
L1 68nH
0402HPH-68NXJL
5%
J5 SMA-R
RF+
J5 SMA-R
RF+
J7
GND
J7
GND
C21
100pF
5% C21
100pF
5%
R3 330 R3 330
J9
GND
J9
GND
J8
5V
J8
5V
C22
0.1uF
C22
0.1uF
TUNETUNE
C13 0.1uF C13 0.1uF
J6
3.3V
J6
3.3V
E3
STATUS
E3
STATUS
R4 15 R4 15
C19 0.01uF C19 0.01uF
U1
*
U1
*
REFO
2
TUNE
15
STAT
3
MUTE
9
SCLK
5
V+D
8
SDO
7
RF+
12
RF-
11
GNDB
10
CS
4
TB
16
GNDC
17
V+RF
13
V+REFO
1
BB
14
SDI
6
CMc
18
CMb
19
CMa
20
GNDA
21
V+VCO
22
GNDD
23
V+CP
24
CP
25
V+R EF
26
REF +
27
REF -
28
GND
29
C7
0.01uF
C7
0.01uF
CI2
*
0805
CI2
*
0805
CP
*
0603
CP
*
0603
C15 0.01uFC150.01uF
C14 0.022uFC140.022uF
J4
SMA-R
RF-
J4
SMA-R
RF-
CI1
*
0603
CI1
*
0603
R1 51.1 1% R1 51.1 1%
C17 0.1uF C17 0.1uF
+
C10 330uF 10V 7343
+
C10 330uF 10V 7343
D1 SML-010VT RED D1 SML-010VT RED
2 1
C11 1uF C11 1uF
C18 1uF 16V 0805 C18 1uF 16V 0805
RZ
*
1% 0603 RZ
*
1% 0603
C1 1uF 16V 0805 C1 1uF 16V 0805
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