DW9256
1
DS4026 - 1.5 October 1995
The DW9256 has been designed specifically for the
Personal Communications market, as an IF filter with a centre
frequency of 133MHz. The filter utilises Mitel Semiconductor's
low loss Transversal filter technology based on a Quartz
substrate for excellent temperature stability.
A minimum 3dB passband of 75kHz is combined with a
high shape factor to give good adjacent channel rejection.
The device is available in a surface mount, ceramic
leadless chip carrier, suited to high volume automated
assembly systems.
FEATURES
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133MHz Centre Frequency (fo)
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Low Insertion Loss (7dB maximum)
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3dB Passband 75kHz (minimum)
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Quartz Temperature Stability
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Low Profile Ceramic LCC Package
ABSOLUTE MAXIMUM RATINGS
DC Voltage
VDC
0V
Input Power Max.
PIN
10dBm
NOMINAL IMPEDANCE
Input:
520
// 20pF
Output:
200
// 30pF
50
TEST BOARD COMPONENTS
Input:
Series Ind. 180nH, Shunt Ind. 100nH, Shunt Cap. 2.2pF
Output:
Shunt Ind. 68nH, Series Ind. 82nH
Components: Coilcraft 1008CS Inductors : Murata 0805 Capacitors
ORDERING INFORMATION
DW9256
DW9256
133MHZ SAW Filter
Advance Information
DW9256
4
PACKAGE DETAILS
Dimensions are shown thus: mm (in). For further package information, please contact your local Customer Service Centre.
Internet: http://www.gpsemi.com
CUSTOMER SERVICE CENTRES
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FRANCE & BENELUX Les Ulis Cedex Tel: (1) 69 18 90 00 Fax : (1) 64 46 06 07
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GERMANY Munich Tel: (089) 419508-20 Fax : (089) 419508-55
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ITALY Milan Tel: (02) 6607151 Fax: (02) 66040993
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JAPAN Tokyo Tel: (03) 5276-5501 Fax: (03) 5276-5510
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KOREA Seoul Tel: (2) 5668141 Fax: (2) 5697933
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NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 5576/6231
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SOUTH EAST ASIA Singapore Tel:(65) 3827708 Fax: (65) 3828872
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SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36
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TAIWAN, ROC Taipei Tel: 886 2 25461260 Fax: 886 2 27190260
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UK, EIRE, DENMARK, FINLAND & NORWAY
Swindon Tel: (01793) 726666 Fax : (01793) 518582
These are supported by Agents and Distributors in major countries world-wide.
Mitel Corporation 1998 Publication No. DS4026 Issue No. 1.4 October 1995
TECHNICAL DOCUMENTATION NOT FOR RESALE. PRINTED IN UNITED KINGDOM
HEADQUARTERS OPERATIONS
MITEL SEMICONDUCTOR
Cheney Manor, Swindon,
Wiltshire SN2 2QW, United Kingdom.
Tel: (01793) 518000
Fax: (01793) 518411
MITEL SEMICONDUCTOR
1500 Green Hills Road,
Scotts Valley, California 95066-4922
United States of America.
Tel (408) 438 2900
Fax: (408) 438 5576/6231
This publication is issued to provide information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded
as a representation relating to the products or services concerned. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. The Company
reserves the right to alter without prior notice the specification, design or price of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any
guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and
to ensure that any publication or data used is up to date and has not been superseded. These products are not suitable for use in any medical products whose failure to perform may result in significant injury
or death to the user. All products and materials are sold and services provided subject to the Company's conditions of sale, which are available on request.
All brand names and product names used in this publication are trademarks, registered trademarks or trade names of their respective owners.
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