CSDZ-10H-0.9G
DIRECTIONAL COUPLER
REV: 002, 10/09/06
TECHNICAL DESCRIPTION
FEATURES
• 800 - 1000 MHz
• LOW LOSS
• HIGH DIRECTIVITY
• EXCELLENT COUPLING ACCURACY
• SURFACE MOUNT
The Multi-Mix
®
CSDZ series provides 10 dB coupling at 900 MHz. The CSDZ series features accurate
coupling factors, low VSWR, and high directivity. Very low insertion loss and high power handling capa-
bility make this series ideal for use in base station power amplifiers particularly in the main loop of the
feedforward amplifiers. The CSDZ series is also ideal for use in RF sampling networks and control cir-
cuitry in high power transmitters.
CSDZ directional couplers are based on fusion bonded multilayer stripline structures. The fusion bonding
process yields homogeneous monolithic dielectric structures with reliability, ruggedness, and electrical
and thermal performance that are superior to conventional adhesive bonding techniques.
GENERAL SPECIFICATIONS
FREQUENCY RANGE
(MHz)
800 - 1000
INSERTION LOSS
(dB MAX)
0.14
MEAN COUPLING
(dB)
10 ± 0.6
VSWR
(MAX, ALL PORTS)
1.15:1
FREQUENCY SENSITIVITY
(dB MAX)
DIRECTIVITY
( dB MIN)
AVERAGE POWER
(WATTS, MAX.)
RF
INTERFACE
OPERATING
TEMPERATURE
± 0.15
22
250
Leadless Surface Mount
-55° TO +95° C
PACKAGE OUTLINE/ TAPE & REEL ORIENTATION
DIRECTION OF FEED
.560
[14.224]
PORT 2
PORT 1
P
0
P
PAD 1
1
K
0
"A"
W
"A"
B
0
.350
[8.890]
CSDZ-10H-0.9G
.040
[1.016] TYP.
MARKED SIDE UP
PORT 3
.059
[1.499] TYP.
PORT 4
.067
[1.702]
P
P0
A0
B0
K0
1
ENGLISH (in) 1.2598 0.6299 0.1575 0.3598 0.5697 0.0799
METRIC (mm) 32.00
16.00 4.00
9.14
14.47
2.03
W
A
0
SECTION "A"-"A"
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. ]
