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| Data Sheet Features * * * * * * For WLAN applications Usable bandwidth of 17 MHz High attenuation Balanced or Single-ended operation Ceramic Surface Mount Package (SMP) Small size Part Number 855898 374 MHz SAW Filter * Package Surface Mount 5.00 x 5.00 x 1.32 mm Pin Configuration Bottom View 1 2 3 1.32 NOM. 1.52 MAX. 5.00 1.27 0.66 8 4 7 6 5 5.00 1.27 Pin No. 2 3 6 7 1,4,5,8 Description Input return Input Output return Output Case Ground 2.08 0.64 Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width 0.15/0.10mm Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 0.5 - 1.0m, over a 2 - 6m Ni plating Subject to change or obsolescence without notice Rev B 06-Aug-2002 Page 1 of 5 Data Sheet Operating Temperature Range: (2) -10 to +80 oC Part Number 855898 374 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency, f0 Minimum Insertion Loss 3 dB Bandwidth Relative Attenuation (4) 309 - 352 MHz 352 - 357.5 MHz 390.5 - 392 MHz 392 - 396 MHz 396 - 439 MHz 439 - 454 MHz Passband Variation Group Delay Variation Triple Transit Suppression Optimal Source Impedance: (5) Optimal Load Impedance: (5) Notes: 1. 2. 3. 4. 5. Minimum 17 40 35 35 35 38 40 30 - Typical 374 8.5 20.5 50 50 45 40 42 45 0.5 40 40 50 50 Maximum 10.5 1.0 100 - Unit MHz dB MHz dB dB dB dB dB dB dB nsec dB All specifications are based on the test circuit shown below In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances Relative to minimum insertion loss Sawtek's production specifications reflect the typical performance in a 50 ohm single-ended system. This filter can be used in both single-ended and/or differential modes at each port. In addition, similar performance can be achieved in source and load impedances ranging from 50 to 1000. Test Circuit: 18pF 3 7 15nH 1,2,4,5,6,8 50 6pF 50 Single-ended 50 9.5nH Subject to change or obsolescence without notice Rev B 06-Aug-2002 Page 2 of 5 Data Sheet Part Number 855898 374 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev B 06-Aug-2002 Page 3 of 5 Data Sheet 18pF 3 7 15nH 1,2,4,5,6,8 6pF Part Number 855898 374 MHz SAW Filter Matching Schematics 50 Single-ended 50 9.5nH 50 15pF 2 6 470pf 200 Balanced 200 16nH 3 15pF 1,4,5,8 7 470pf 27nH 200 Marking 2.28 Sawtek logo Marking code PCB Footprint 5.20 1.47 D JJJYM .84 .71 ID dot Date code .43 .84 1.47 The date code consists of: JJJ = Julian day, Y = last digit of year, M = manufacturing site code This footprint represents a recommendation only Dimensions shown are nominal in millimeters Tape and Reel 2.7 12.8 O330 ID dot 0.3 2.0 4.0 O1.5 A 1.75 5.5 Sawtek logo O102 O20.2 O13.0 2.0 Direction of travel 5.25 1.8 Section A-A 5.25 8.0 O1.5 A 12.0 Dimensions shown are nominal in millimeters Packaging quantity: 4000 units/reel Subject to change or obsolescence without notice Rev B 06-Aug-2002 Page 4 of 5 Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Part Number 855898 374 MHz SAW Filter Symbol T Tstg Minimum -10 -40 Maximum +80 +85 Unit o o C C Warnings * * Electrostatic Sensitive Device (ESD) Avoid ultrasonic exposure Links to Additional Technical Information PCB Layout Tips S-Parameters Qualification Flowchart Reel and Packaging Label Soldering Profile Other Technical Information Sawtek's liability is limited only to the Surface Acoustic Wave (SAW) component(s) described in this data sheet. Sawtek does not accept any liability for applications, processes, circuits or assemblies which are implemented using any Sawtek component described in this data sheet. Contact Information PO Box 609501 Orlando, FL 32860-9501 USA Subject to change or obsolescence without notice Phone: +1 (407) 886-8860 Fax: +1 (407) 886-7061 Email: custservice@sawtek.com Web: www.sawtek.com Rev B Or contact one of our worldwide network of sales offices, representatives or distributors 06-Aug-2002 Page 5 of 5 |
Price & Availability of 855898
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