Merrimac CSDZ-10Q-.312G Directional coupler Datasheet

CSDZ-10Q-.312G
DIRECTIONAL COUPLER
PRELIMINARY REV: 001, 01/17/06
TECHNICAL DESCRIPTION
FEATURES
• 225 - 400 MHz
• LOW LOSS
• HIGH DIRECTIVITY
• EXCELLENT COUPLING ACCURACY
• SURFACE MOUNT
• Ni/Au Finish
The Multi-Mix® CSDZ series provides 10 dB coupling from 225 - 400 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 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)
225 - 400
0.16
10 ± 0.5
1.15:1
FREQUENCY SENSITIVITY
(dB MAX)
DIRECTIVITY
( dB MIN)
AVERAGE POWER
(WATTS, MAX.)
RF
INTERFACE
OPERATING
TEMPERATURE
± 0.6
20
250
Leadless Surface Mount
-55° TO +95° C
PACKAGE OUTLINE
1.00±.02
[25.40±0.51]
PORT 2
4X R.063
[R1.59]
PORT 3
.080
[2.02]
PORT 1
1.00±.02
[25.40±0.51]
.070±.005
[1.91±0.13]
CSDZ-10Q-.312G
.050
[1.27]
PORT 4
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
-8
1
-8.5
0.8
0.6
Insertion Loss(dB)
Coupling (dB)
-9
-9.5
-10
-10.5
-11
0.4
0.2
0
-0.2
-0.4
-0.6
-11.5
-12
225
-0.8
250
275
300
325
350
375
-1
225
400
250
275
300
325
Frequency (MHz)
Frequency (MHz)
Port 2
350
375
400
Directivity
VSWR
Port 1
Port 3
Isolation
0
Port 4
1.5
Isolation2
-5
-10
Directivity (dB)
1.4
1.3
1.2
-15
-20
-25
-30
-35
-40
1.1
-45
-50
225
1
225
250
275
300
325
Frequency (MHz)
350
375
400
250
275
300
325
Frequency (MHz)
350
375
MOUNTING CONFIGURATION
50 OHM LINE
.032 DIELECTRIC
THICKNESS ER= 3.3
1.005
CSDZ-10Q-.312G
402633-002
.055
.845
VSWR
CSDZ-10Q-.312
TYPICAL PERFORMANCE
.080
GROUND PLANE OF UNIT SHOULD
BE SOLDERED TO GROUND PLANE
OF CIRCUIT BOARD FOR OPTIMUM
PERFORMANCE
GROUND PLANE
.074
.074
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
400
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