Merrimac CSDZ-5H-1.9G Directional coupler Datasheet

CSDZ-5H-1.9G
DIRECTIONAL COUPLER
REV: 003, 01/16/07
TECHNICAL DESCRIPTION
FEATURES
• 1700 - 2000 MHz
• LOW LOSS
• HIGH DIRECTIVITY
• EXCELLENT COUPLING ACCURACY
• SURFACE MOUNT
The Multi-Mix® CSDZ series provides 5 dB coupling at 1900 MHz. The CSDZ series features accurate
coupling factors, low VSWR, and high directivity. Very low insertion loss and high power handling capability 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 circuitry 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)
INSERTION LOSS
(dB MAX)
MEAN COUPLING
(dB)
VSWR
(MAX, ALL PORTS)
1700 - 2000
0.15
4.9 ± 0.2
1.15:1
FREQUENCY SENSITIVITY
(dB MAX)
DIRECTIVITY
( dB MIN)
AVERAGE POWER
(WATTS, MAX.)
RF
INTERFACE
OPERATING
TEMPERATURE
± 0.05
25
200
Leadless Surface Mount
-55° TO +95° C
PACKAGE OUTLINE/ TAPE & REEL ORIENTATION
DIRECTION OF FEED
.560
[14.224]
PORT 2
PAD 1
P
P0
PORT 1
0
"A"
.350
[8.890]
CSDZ-5H-1.9G
K
1
"A"
B0
W
.040
[1.016] TYP.
MARKED SIDE UP
A0
PORT 4
PORT 3
.059
[1.499] TYP.
.060
[1.524]
SECTION "A"-"A"
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
®
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: [email protected] / www.merrimacind.com
Coupling
Insertion Loss
-4.400
0.30
-4.500
Insertion Loss (dB)
Coupling (dB)
-4.600
-4.700
-4.800
-4.900
-5.000
-5.100
-5.200
0.15
0.00
-0.15
-5.300
-5.400
1700
1750
1800
1850
1900
1950
-0.30
1700
2000
1750
1800
Frequency (MHz)
Port2
1900
1950
2000
Directivity
Port3
Port4
0.000
1.25
-10.000
Directivity (dB)
1.3
1.2
1.15
1.1
-20.000
-30.000
-40.000
1.05
1
1700
1850
Frequency (MHz)
VSWR
Port1
VSWR
CSDZ-5H-1.9G
TYPICAL PERFORMANCE
1750
1800
1850
1900
1950
-50.000
1700
2000
1750
1800
1850
1900
1950
Frequency (MHz)
Frequency (MHz)
MOUNTING CONFIGURATION
50 OHM LINE
.032 DIELECTRIC THICKNESS
ER= 3.38
Ground plane of unit should
be soldered to ground plane
of circuit board for optimum
performance
0.447
[11.35]
0.034 typ. [0.86]
GROUND VIAS
PLATED THRU
0.050
[1.28]
0.250
[6.35]
0.351
[8.91]
0.0630
[1.60]
GROUND PLANE
0.068
[1.73]
TRUTH TABLE
1
2
3
4
1
Input
Output
Isolated
Coupled
2
Output
Input
Coupled
Isolated
3
Isolated
Coupled
Input
Output
4
Coupled
Isolated
Output
Input
Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006
Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: [email protected] / www.merrimacind.com
2000
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