CSD-20N-0.75G
DIRECTIONAL COUPLER
REV: 001, 03/29/07
TECHNICAL DESCRIPTION
FEATURES
• 0.5 - 1.0 GHz
• LOW LOSS
• HIGH DIRECTIVITY
• EXCELLENT COUPLING ACCURACY
• SURFACE MOUNT
The Multi-Mix
®
CSD-20N-0.75G provides a 20 dB coupling with low insertion loss, low VSWR, and high
directivity. Accurate coupling factors make this series ideal for use in power amplifiers and RF signal dis-
tribution and processing equipment.
CSD-20 directional couplers are fusion bonded multilayer stripline devices. The fusion bonding process
yields a homogeneous monolithic dielectric structure with reliability, ruggedness, and electrical perform-
ance that is superior to conventional adhesive bonding techniques.
GENERAL SPECIFICATIONS
FREQUENCY RANGE
MHz
500 - 1000
INSERTION LOSS
(dB MAX)
0.2
MEAN
COUPLING
VSWR
(MAX, ALL PORTS)
1.22:1
20 ± 1.0
FREQUENCY SNESITIVITY
(dB MAX)
DIRECTIVITY
(dB MIN)
POWER
(AVG. CW WATTS)
OPERATING
TEMPERATURE
-55° - +85° C
± 1.0
16
100
PACKAGE OUTLINE / TAPE AND REEL ORIENTATION
DIRECTION OF FEED
P
0
P
PAD 1
1
K
0
PORT 2
.650
.402
PORT 1
"A"
"A"
B
0
1
.480
.192
2
3
.061
W
MARKED SIDE UP
PORT 3
PORT 4
A
0
SECTION "A"-"A"
P
P0
A0
B0
K0
1
ENGLISH (in) 0.9449 0.6299 0.1575 0.5126 0.6665 0.09448
METRIC (mm) 24.00
16.00 4.00
13.02
16.93
2.4
W
THE MULTI-MIX MICROTECHNOLOGY
®
GROUP IS ISO 9001:2000 REGISTERED
U.S. Patent 6,099,677 and other Patents Pending.
Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006
Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: crm@merrimacind.com / www.merrimacind.com
MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
