Part Number 855959 549.5 MHz SAW Filter Data Sheet Features * * * * * * * For wireless LAN applications Usable bandwidth of 10 MHz High attenuation Single-ended operation at 50 Ceramic Surface Mount Package (SMP) Small size Package Pin Configuration Surface Mount 7.01 x 5.51 x 1.63 mm Bottom View 1 0.76 1.63 NOM. 1.78 MAX. 7.01 4 11 5 10 6 9 1.27 5.51 0.79 3 12 1.27 1.70 2 Pin No. 4 10 1,2,3,5,6 7,8,9,11,12 8 7 Description Output Input Case Ground Case Ground 1.14 Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width 0.13mm 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 E 27-Aug-2002 Page 1 of 5 Part Number 855959 549.5 MHz SAW Filter Data Sheet Electrical Specifications (1) Temperature Range: (2) -10 to +65 oC Parameter (3) Center Frequency Insertion Loss at 549.5 MHz 1 dB Lower Frequency (4) 1 dB Upper Frequency 3 dB Lower Frequency (4) 3 dB Upper Frequency 40 dB Lower Frequency (4) 40 dB Upper Frequency Relative Attenuation (4) 10 - 523.5 MHz 523.5 - 536.5 MHz 562.5 - 575.5 MHz 575.5 - 2000 MHz Passband Variation 544.5 - 554.5 MHz Passband Variation (5) 544.5 - 554.5 MHz Phase Ripple(5) 544.5 - 554.5 MHz (straight line fit) Group Delay Variation 544.5 - 554.5 MHz Input/Output VSWR 544.5 - 554.5 MHz Triple Transit Level Source Impedance (6) Load Impedance (6) Temperature Coefficient of Frequency Minimum Typical Maximum Unit 554.5 541 556 536.5 - 549.5 11.8 542.6 556.4 541.9 557.1 539.2 560.3 14 544.5 543 558 562.5 MHz dB MHz MHz MHz MHz MHz MHz 50 40 40 50 56 47 48 55 - dB dB dB dB - 0.26 1 dB p-p - 0.25 0.8 dB p-p - 1.9 5 deg p-p - 30 100 nsec 35 - 1.4 42 50 50 -23 2 - dB ppm/oC Notes: 1. 2. 3. 4. 5. 6. All specifications are based on the matching schematic on page 4 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 manufacturing tolerances Referenced to insertion loss at 549.5 MHz Sliding aperture 2 MHz This is the optimum impedance in order to achieve the performance shown Subject to change or obsolescence without notice Rev E 27-Aug-2002 Page 2 of 5 Part Number 855959 549.5 MHz SAW Filter Data Sheet Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev E 27-Aug-2002 Page 3 of 5 Part Number 855959 549.5 MHz SAW Filter Data Sheet Test Circuit Actual matching values may vary due to PCB layout and parasitics 4.7nH 7pF 10 50 Single-ended 8pF 50 4 7pF 1,2,3,5,6 7,8,9,11,12 50 7pF Matching Schematics Actual matching values may vary due to PCB layout and parasitics 15nH 10 50 Single-ended 9pF 50 4 16pF 1,2,3,5,6 7,8,9,11,12 Marking PCB Footprint 1.34 SAWTEK 855959 XXXXXX ID dot 50 .28 .99 1.34 .28 Date code 5.71 .99 7.21 The date code consists of: day of the current year (Julian, 3 digits), last digit of the year (1 digit) and hour (2 digits) This footprint represents a recommendation only Dimensions shown are nominal in millimeters Tape and Reel 2.7 16.8 ID dot O330 0.3 2.0 4.0 O1.5 A 1.75 7.5 7.3 O102 16.0 Direction of travel O20.2 O13.0 2.0 2.2 5.8 8.0 O1.5 A Section A-A Dimensions shown are nominal in millimeters Packaging quantity: 3000 units/reel Subject to change or obsolescence without notice Rev E 27-Aug-2002 Page 4 of 5 Part Number 855959 549.5 MHz SAW Filter Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Symbol Minimum Maximum T Tstg -10 -40 +65 +85 Unit o C C o Warnings * * Electrostatic Sensitive Device (ESD) Avoid ultrasonic exposure Links to Additional Technical Information PCB Layout Tips Qualification Flowchart Soldering Profile S-Parameters 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 Or contact one of our worldwide network of sales offices, representatives or distributors Phone: +1 (407) 886-8860 Fax: +1 (407) 886-7061 Email: custservice@sawtek.com Web: www.sawtek.com Rev E 27-Aug-2002 Page 5 of 5