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| Preliminary Data Sheet Features * * * * * * For broadband wireless access and VOFDM applications Usable bandwidth 5.16 MHz High attenuation Single-ended operation Ceramic Surface Mount Package (SMP) Small size Part Number 855731 426 MHz SAW Filter * Package Surface Mount 13.30 x 6.50 x 1.75 mm Pin Configuration Bottom View 1 1.75 NOM. 1.96 MAX. 0.76 13.3 2.54 2 3 4 5 6 12 11 10 9 8 7 2.18 6.50 2.54 1.17 x 3.76 0.79 1.50 Pin No. 11 5 1,2,3,4,6 7,8,9,10,12 Description Input Output Case ground Case ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width 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 - 14-Sep-2001 Page 1 of 5 Preliminary Data Sheet Operating Temperature Range: (2) 0 to +70 oC Part Number 855731 426 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Insertion Loss at 426 MHz Upper 0.5 dB Point (4) Lower 0.5 dB Point (4) Upper 3 dB Point (4) Lower 3 dB Point (4) Upper 40 dB Point (4) Lower 40 dB Point (4) Upper 45 dB Point (4) Lower 45 dB Point (4) Upper 50 dB Point (4) Lower 50 dB Point (4) Relative Attenuation 100.0 - 419.5 MHz 433.5 - 500.0 MHz Phase Ripple 423.3 - 428.7 MHz Input VSWR at 426MHz Output VSWR at 426MHz Triple Transit Suppression Passband Ripple(5) Source Impedance: (6) Load Impedance: (6) Notes: 1. 2. 3. 4. 5. 6. 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 insertion loss at 426MHz 100% of the 1 dB bandwidth (Maximum peak to adjacent valley) This is the optimum impedance in order to achieve the performance shown Minimum 428.52 422.35 421.31 421.20 419.50 50 50 40 - Typical 426 18.02 428.81 423.16 429.25 422.69 430.53 421.59 430.70 421.55 432.75 421.51 60.1 53.2 3.1 3.2 1.9 43 0.21 50 50 Maximum 20.5 423.36 429.65 430.74 430.89 433.50 10 5.0:1 2.5:1 0.7 - Unit MHz dB MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz dB dB deg p-p dB dB Test Circuit: 15nH 11 5 15pF 1,2,3,4,6 7,8,9,10,12 50 12nH 50 Single-ended 50 10pF Subject to change or obsolescence without notice Rev - 14-Sep-2001 Page 2 of 5 Preliminary Data Sheet Part Number 855731 426 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev - 14-Sep-2001 Page 3 of 5 Preliminary Data Sheet Actual matching values may vary due to PCB layout and parasitics 15nH 11 5 12nH Part Number 855731 426 MHz SAW Filter Matching Schematics 50 Single-ended 50 10pF 15pF 1,2,3,4,6 7,8,9,10,12 50 Marking 1.70 PCB Footprint 13.51 3.53 SAWTEK 855731 XXXXXX ID Dot Date Code 6.70 .99 .99 8.61 1.55 1.70 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 24.8 2.7 O330 0.3 2.0 ID dot 4.0 O1.5 A 1.75 11.5 13.9 24 O102 O20.2 O13.0 2.0 Direction of travel 2.3 Section A-A 7.1 12.0 O1.5 A Dimensions shown are nominal in millimeters Packaging quantity: 2000 units/reel Subject to change or obsolescence without notice Rev - 14-Sep-2001 Page 4 of 5 Preliminary Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range RF Power Part Number 855731 426 MHz SAW Filter Symbol T Tstg Pin Minimum 0 -40 - Maximum +70 +85 +10 Unit C C dBm o o 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 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 Or contact one of our worldwide network of sales offices, representatives or distributors Rev - 14-Sep-2001 Page 5 of 5 |
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