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| Data Sheet Features * * * * * * * For broadband applications Typical 3 dB bandwidth of 0.31 MHz High attenuation Single-ended operation Ceramic Surface Mount Package (SMP) Small size Replaces Sawtek P/N 851541 (BW 3dB=0.25 MHz) Part Number 855735 70 MHz SAW Filter * Package Surface Mount 24.60 x 9.00 x 2.31 mm Pin Configuration Bottom View 12345 2.31 NOM. 2.62 MAX. 1.02 24.6 1.80 1.91 10 9 8 7 6 9.00 R0.5 2.31 3.53 x 4.83 1.02 Pin No. 1 5 6 10 2,3,4 7,8,9 Description Input return Output Output return Input Case ground Case ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width +0.13mm/-0.20mm 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 A 11-Jul-2002 Page 1 of 5 Data Sheet Operating Temperature Range: (2) 0 to +70 oC Part Number 855735 70 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Minimum Insertion Loss Lower 1 dB Bandedge (4) Upper 1 dB Bandedge Lower 3 dB Bandedge (4) Upper 3 dB Bandedge Lower 40 dB Bandedge (4) Upper 40 dB Bandedge Amplitude Variation 69.935 - 70.065 MHz Phase Linearity 69.935 - 70.065 MHz Group Delay Variation 69.935 - 70.065 MHz Absolute Delay Relative Attenuation(4) 10 - 68 MHz 72 - 80 MHz 80 - 135 MHz 135 - 145 MHz 145 - 200 MHz Source Impedance: (5) Load Impedance: (5) Notes: 1. 2. 3. 4. 5. Minimum 70.065 70.13 69.5 50 40 50 40 50 - Typical 70 16.36 69.90 70.09 69.84 70.16 69.56 70.46 0.42 0.84 249.70 3.19 69 52 64.5 49.5 63 50 50 Maximum 20 69.935 69.87 70.5 1 3 470 - Unit MHz dB MHz MHz MHz MHz MHz MHz dB deg nsec sec dB dB dB 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 All attenuation measurements are measured relative to minimum insertion loss This is the optimum impedance in order to achieve the performance shown Test Circuit: Actual matching values may vary due to PCB layout and parasitics 910nH 6pF 7pF 820nH 10 5 68pF 50 50 Single-ended 50 68pF 1,2,3,4 6,7,8,9 Subject to change or obsolescence without notice Rev A 11-Jul-2002 Page 2 of 5 Data Sheet Part Number 855735 70 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev A 11-Jul-2002 Page 3 of 5 Data Sheet Actual matching values may vary due to PCB layout and parasitics 910nH 6pF Part Number 855735 70 MHz SAW Filter Matching Schematics 7pF 820nH 10 5 68pF 50 50 Single-ended 50 68pF 1,2,3,4 6,7,8,9 Marking PCB Footprint 8.84 SAWTEK 855735 XXXXXX ID dot Date code 9.19 1.95 1.22 .69 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 4.0 Tape and Reel 2.7 44.8 O330 ID dot 0.36 2.0 O1.5 A 1.75 20.2 40.4 25.6 44.0 O102 O20.2 O13.0 2.0 Direction of travel 0.20 2.6 Section A-A 9.39 12.0 R0.75 O1.5 A Dimensions shown are nominal in millimeters Packaging quantity: 1000 units/reel Subject to change or obsolescence without notice Rev A 11-Jul-2002 Page 4 of 5 Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Part Number 855735 70 MHz SAW Filter Symbol T Tstg Minimum 0 -40 Typical +25 - Maximum +70 +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 Soldering Profile Other Technical Information Contact Information PO Box 609501 Orlando, FL 32860-9501 USA Phone: +1 (407) 886-8860 Fax: +1 (407) 886-7061 Email: custservice@sawtek.com Web: www.sawtek.com Or contact one of our worldwide network of sales offices, representatives or distributors Subject to change or obsolescence without notice Rev A 11-Jul-2002 Page 5 of 5 |
Price & Availability of 855735
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