DW9256 DW9256 133MHZ SAW Filter Advance Information 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 ■ 133MHz Centre Frequency (fo) ■ Low Insertion Loss (7dB maximum) ■ 3dB Passband ±75kHz (minimum) ■ Quartz Temperature Stability ■ Low Profile Ceramic LCC Package ABSOLUTE MAXIMUM RATINGS DC Voltage VDC 0V Input Power Max. PIN 10dBm NOMINAL IMPEDANCE Input: Output: 520Ω // 20pF 200Ω // 30pF 50Ω TEST BOARD COMPONENTS Input: Output: Series Ind. 180nH, Shunt Ind. 100nH, Shunt Cap. 2.2pF Shunt Ind. 68nH, Series Ind. 82nH Components: Coilcraft 1008CS Inductors : Murata 0805 Capacitors ORDERING INFORMATION DW9256 1 DW9256 ELECTRICAL CHARACTERISTICS @ 25°C Parameter Min Typ Max Units - 133 - MHz 1dB Bandwidth ±75 ±170 - kHz 3dB Bandwidth ±75 ±300 Insertion Loss 4 5 7 dB Amplitude Ripple - 0.5 2 dB Group Delay Ripple - 150 1000 ns Stopband Rejection: fo ± 400 - 600 kHz fo ± 600 - 800 kHz fo ± 800 - 1500 kHz fo - 1500 kHz - 50 MHz fo + 1500 kHz + 200 MHz 3 10 20 30 30 5 15 30 35 35 - dB dB dB dB dB Operating Temperature Range -20 - +80 °C Centre Frequency 2 kHz DW9256 PLOT 3 DW9256 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 ● FRANCE & BENELUX Les Ulis Cedex Tel: (1) 69 18 90 00 Fax : (1) 64 46 06 07 ● GERMANY Munich Tel: (089) 419508-20 Fax : (089) 419508-55 ● ITALY Milan Tel: (02) 6607151 Fax: (02) 66040993 ● JAPAN Tokyo Tel: (03) 5276-5501 Fax: (03) 5276-5510 ● KOREA Seoul Tel: (2) 5668141 Fax: (2) 5697933 ● NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 5576/6231 ● SOUTH EAST ASIA Singapore Tel:(65) 3827708 Fax: (65) 3828872 ● SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36 ● TAIWAN, ROC Taipei Tel: 886 2 25461260 Fax: 886 2 27190260 ● 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 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. 4