CSDZ-20H-0.9G Datasheet, PDF (1/2 Pages) Merrimac Industries, Inc. – DIRECTIONAL COUPLER

CSDZ-20H-0.9G
DIRECTIONAL COUPLER
REV: 001, 12/08/05
TECHNICAL DESCRIPTION
FEATURES
• 800 - 1000 MHz
• LOW LOSS
• HIGH DIRECTIVITY
• EXCELLENT COUPLING ACCURACY
• SURFACE MOUNT
The Multi-Mix^® CSDZ series provides 20 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.
FREQUENCY RANGE
(MHz)
800 - 1000
FREQUENCY SENSITIVITY
(dB MAX)
± 0.15
GENERAL SPECIFICATIONS
INSERTION LOSS
(dB MAX)
MEAN COUPLING
(dB)
0.15
20 ± 0.5
DIRECTIVITY
( dB MIN)
AVERAGE POWER
(WATTS, MAX.)
20
200
VSWR
(MAX, ALL PORTS)
1.15:1
RF
INTERFACE
OPERATING
TEMPERATURE
Leadless Surface Mount
-55° TO +95° C
PACKAGE OUTLINE/ TAPE & REEL ORIENTATION
PORT 2
.560
[14.224]
PORT 1
DIRECTION OF FEED
P₀
P
PAD 1
1
K
0
.350
[8.890]
CSDZ-20H-0.9G
.040
[1.016] TYP.
"A"
"A"
W
B₀
MARKED SIDE UP
PORT 3
.059
[1.499]TYP.
PORT 4
.064
[1.63]
W
P1 P0 A0
B0
K0
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
A₀
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: [phone].MMFM / Fax: [phone] / Email: [e-mail] / www.merrimacind.com