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DW9268 DW9268
240.192MHz IF SAW Filter Advance Information
DS4025 - 1.4 October 1995
The DW9268 has been designed specifically for the Digital Cordless Personal Communications market as an IF filter with a centre frequency of 240.192MHz. The filter utilises GPS's low loss (7dB typical), Transversal filter technology based on a Quartz substrate for excellent temperature stability. A 3dB passband of 1.3MHz (typical) is maintained whilst providing rejection to adjacent and alternate interferers compliant to the DECT Common Interface specification Part 2 - The Physical Layer. The device also exhibits excellent closein and ultimate rejection, which combined with a Group Delay Ripple of 200ns maximum makes the DW9268 and ideal IF filter for Digital Cordless Personal Communications systems. The device is packaged in a surface mount, leadless ceramic chip carrier, suited to high volume automated assembly systems.
FEATURES
s 240.192MHz Centre Frequency (fo) s Low Insertion Loss (8dB maximum) s 3dB Passband 1.3MHz (typical) s Quartz Temperature Stability s Low Profile Ceramic LCC Package
ABSOLUTE MAXIMUM RATINGS
DC Voltage Input Power Max. VDC PIN 0V 10dBm
NOMINAL IMPEDANCE
Input: Output: 500 // 16pF 625 // 14pF
50 TEST BOARD COMPONENTS
Input: Output: Shunt Cap. 45pF, Series Ind. 47nH Series Ind. 47nH, Shunt Cap. 34pF
Components: Coilcraft 1008CS Inductors : Murata 0805 Capacitors
ORDERING INFORMATION
DW9268
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DW9268
ELECTRICAL CHARACTERISTICS @ 25C
Parameter Centre Frequency 3dB Bandwidth Insertion Loss Amplitude Ripple Group Delay Ripple Stopband Rejection fo 1.152 MHz fo 1.728 MHz fo 2.880 MHz fo 5.0 MHz Operating Temperature Range Min 1260 10 30 40 50 -20 Typ 240.192 1300 7 0.2 100 12 32 50 55 Max 1340 8 1 200 +80 Units MHz kHz dB dB ns dB dB dB dB C
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DW9268
PLOT
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DW9268
PACKAGE DETAILS
Dimensions are shown thus: mm (in). For further package information, please contact your local Customer Service Centre.
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
Internet: http://www.gpsemi.com CUSTOMER SERVICE CENTRES q FRANCE & BENELUX Les Ulis Cedex Tel: (1) 69 18 90 00 Fax : (1) 64 46 06 07 q GERMANY Munich Tel: (089) 419508-20 Fax : (089) 419508-55 q ITALY Milan Tel: (02) 6607151 Fax: (02) 66040993 q JAPAN Tokyo Tel: (03) 5276-5501 Fax: (03) 5276-5510 q KOREA Seoul Tel: (2) 5668141 Fax: (2) 5697933 q NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 5576/6231 q SOUTH EAST ASIA Singapore Tel:(65) 3827708 Fax: (65) 3828872 q SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36 q TAIWAN, ROC Taipei Tel: 886 2 25461260 Fax: 886 2 27190260 q UK, EIRE, DENMARK, FINLAND & NORWAY Swindon Tel: (01793) 726666 Fax : (01793) 518582 These are supported by Agents and Distributors in major countries world-wide. (c) Mitel Corporation 1998 Publication No. DS4025 Issue No. 1.4 October 1995 TECHNICAL DOCUMENTATION - NOT FOR RESALE. PRINTED IN UNITED KINGDOM
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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