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| Data Sheet Features * * * * * * * For GSM applications, IF stage Usable bandwidth 166 KHz Low loss Low group delay variation Single-ended or balanced operation Ceramic Surface Mount Package (SMP) Small size Part Number 855874 400 MHz SAW Filter * Package Surface Mount 5.00 x 3.00 x 1.24 mm Pin Configuration Bottom View 1.24 NOM. 1.35 MAX. 0.69 1 2 3 4 8 5.00 1.27 7 6 5 1.30 3.00 0.79 0.51 Pin No. 1 2 5 6 8 3,4,7 Description Input Input return or ground Output Output return or ground Coupling inductor Case ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length +0.15/-0.10mm 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 16-Jan-2002 Page 1 of 5 Data Sheet Operating Temperature Range: (2) -40 to +85 oC Part Number 855874 400 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency, fo Insertion Loss at 400 MHz Excluding losses due to matching Including losses in matching test circuit shown below Minimum 400.083 - Typical 400 2.6 4.4 399.8 400.2 0.55 0.58 0.69 0.21 300 37 34 28 26 34 37 45 45 560||44nH 860||34nH Maximum 4.2 6.0 399.917 0.8 1.2 1.6 2 1000 - Unit MHz dB dB MHz MHz MHz MHz MHz dB nsec dB dB dB dB dB dB dB dB Lower 2 dB Bandedge Upper 2 dB Bandedge 9 dB Bandwidth 12 dB Bandwidth 22 dB Bandwidth Amplitude Variation 399.917 - 400.083 MHz Group Delay Variation 399.917 - 400.083 MHz Rejection (4) 398.5 - 399.2 MHz 399.2 - 399.4 MHz 399.4 - 399.6 MHz 400.4 - 400.6 MHz 400.6 - 400.8 MHz 400.8 - 401.5 MHz Out of Band Rejection 50 - 398.5 MHz 401.5 - 500 MHz Optimal Source Impedance (5) Optimal Impedance (5) Notes: 1. 2. 3. 4. 5. 22 12 9 9 12 22 37 37 - 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 400 MHz This is the complex conjugate of the unmatched filter's impedance resulting in maximum power transfer Test Circuit: 2.5pF 1 5 8 2,3,4,6,7 47nH 30nH 50 2pF 50 Single-ended 50 30nH Subject to change or obsolescence without notice Rev B 16-Jan-2002 Page 2 of 5 Data Sheet Part Number 855874 400 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev B 16-Jan-2002 Page 3 of 5 Data Sheet Actual matching values may vary due to PCB layout and parasitics 2.5pF 1 5 8 2,3,4,6,7 47nH 2pF Part Number 855874 400 MHz SAW Filter Matching Schematics 50 Single-ended 50 30nH 30nH 50 Marking .71 Sawtek logo Marking code PCB Footprint .56 1.22 1.50 3.20 .99 N JJJYM ID dot Date code 4.52 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 Sawtek logo 0.3 2.0 4.0 O1.5 A 1.75 5.5 5.3 12.0 O102 O20.2 O13.0 2.0 Direction of travel 1.8 Section A-A 3.3 8.0 O1.5 A Dimensions shown are nominal in millimeters Packaging quantity: 4000 units/reel Subject to change or obsolescence without notice Rev B 16-Jan-2002 Page 4 of 5 Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Part Number 855874 400 MHz SAW Filter Symbol T Tstg Minimum -40 -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 B Or contact one of our worldwide Network of sales offices, Representatives or distributors 16-Jan-2002 Page 5 of 5 |
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