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| Preliminary Data Sheet Features * * * * * * * For 3G applications Usable bandwidth 60 MHz Low loss No impedance matching required for operation at 50 Single-ended operation Ceramic Surface Mount Package (SMP) Small size Part Number 855938 1950 MHz SAW Filter * Package Surface Mount 3.00 x 3.00 x 1.22 mm Pin Configuration Bottom View 1 2 3 1.22 NOM. 1.32 MAX. 0.69 3.00 6 5 4 0.75 1.50 3.00 0.75 Pin No. 2,5 1,3,4,6 Description Input/Output Case ground 0.60 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 C 29-Jan-2002 Page 1 of 5 Preliminary Data Sheet Operating Temperature Range: (2) -30 to +85 oC Part Number 855938 1950 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Maximum Insertion Loss 1920 - 1980 MHz Absolute Attenuation 10 - 1850 MHz 380 MHz 2110 - 2170 MHz 2300 - 2360 MHz 2680 - 2740 MHz Input VSWR 1920 - 1980 MHz Output VSWR 1920 - 1980 MHz Source Impedance: (4) Load Impedance: (4) Notes: 1. 2. 3. 4. 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 This is the optimum impedance in order to achieve the performance shown Minimum 20 29 28 28 25 - Typical 1950 2.7 25 31 30 32 32 1.6 1.7 50 50 Maximum 5 2.10 2.61 - Unit MHz dB dB dB dB dB dB Test Circuit: 2 5 50 50 Single-ended 50 1,3,4,6 No impedance matching required Subject to change or obsolescence without notice Rev C 29-Jan-2002 Page 2 of 5 Preliminary Data Sheet Part Number 855938 1950 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev C 29-Jan-2002 Page 3 of 5 Preliminary Data Sheet Part Number 855938 1950 MHz SAW Filter Matching Schematics 2 5 50 50 Single-ended 50 1,3,4,6 No impedance matching required Marking Sawtek logo Marking code PCB Footprint 3.20 SQ .96 9 JJJYM 1.70 1.27 ID dot Date code .81 .38 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 Sawtek logo 4.0 0.21 2.0 O1.5 A 1.75 5.5 ID dot O102 O20.2 O13.0 2.0 Direction of travel 12.0 3.25 1.4 Section A-A 3.25 4.0 O1.5 A Dimensions shown are nominal in millimeters Packaging quantity: 5000 units/reel Subject to change or obsolescence without notice Rev C 29-Jan-2002 Page 4 of 5 Preliminary Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Part Number 855938 1950 MHz SAW Filter Symbol T Tstg Minimum -30 -40 Maximum +85 +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 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 C Or contact one of our worldwide Network of sales offices, Representatives or distributors 29-Jan-2002 Page 5 of 5 |
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