Part Number 855745 70 MHz SAW Filter Preliminary Data Sheet Features * * * * * * * * * For broadband applications Typical 3 dB bandwidth of 5.7 MHz High attenuation Single-ended operation Ceramic Surface Mount Package (SMP) Replaces Sawtek P/N 851553 (BW 3dB=5.5 MHz) Hermetic RoHS compliant (2002/95/EC), Pb-free Pb Package Pin Configuration Surface Mount 19.00 x 6.50 x 1.75 mm Bottom View 2 3 4 5 10 9 8 7 6 1 1.75 NOM. 1.96 MAX. 0.76 19.0 1.91 1.80 R0.51 6.50 1.02 2.31 Pin No. 5 10 1,6 2,3,4 7,8,9 Description RF output RF input Ground Case ground Case ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width +0.15mm/-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 13-Oct-2005 Page 1 of 5 Part Number 855745 70 MHz SAW Filter Preliminary Data Sheet Electrical Specifications (1) Operating Temperature Range: (2) 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 67.65 - 72.35 MHz Phase Linearity 67.65 - 72.35 MHz Group Delay Variation 67.65 - 72.35 MHz Absolute Delay Relative Attenuation(4) 10 - 58 MHz 58 - 66 MHz 74 - 82 MHz 82 - 90 MHz 90 - 120 MHz 120 - 145 MHz 145 - 200 MHz Source Impedance: (5) Load Impedance: (5) Substrate Material Temperature Coefficient of Frequency 0 to +70 oC Minimum Typical Maximum Unit 72.35 72.73 66.08 - 70 22.2 67.45 72.66 67.17 72.89 66.28 73.76 24 67.65 67.27 73.92 MHz dB MHz MHz MHz MHz MHz MHz - 0.61 1.1 dB p-p - 2.6 5.0 deg p-p - 55.7 2.065 110 - nsec sec 42.0 37.0 41.0 44.5 51.0 47.5 59.0 - 55 47 47 54 60 54 65 50 50 LiTaO3 -23 - dB dB dB dB dB dB dB ppm/oC Notes: 1. 2. 3. 4. 5. All specifications are based on the matching schematic shown 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 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 Subject to change or obsolescence without notice Rev B 13-Oct-2005 Page 2 of 5 Preliminary Data Sheet Part Number 855745 70 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev B 13-Oct-2005 Page 3 of 5 Part Number 855745 70 MHz SAW Filter Preliminary Data Sheet Matching Schematic Actual matching values may vary due to PCB layout and parasitics 180nH 50 Single-ended 50 10pF 560nH 5 10 15pF 50 1,2,3,4 6,7,8,9 Marking PCB Footprint 8.86 SAWTEK 855745 XXXXXX 6.70 Date Code ID Dot 2.51 1.22 2.00 The date code consists of: day of the current year (Julian, 3 digits), last digit of the year (1 digit) and hour (2 digits) .69 This footprint represents a recommendation only Dimensions shown are nominal in millimeters Tape and Reel 2.7 ID dot 32.8 0.3 O330 4.0 2.0 O1.5 R0.75 A 1.75 14.2 32.0 19.6 28.4 O102 O20.2 O13.0 2.0 0.20 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 B 13-Oct-2005 Page 4 of 5 Part Number 855745 70 MHz SAW Filter Preliminary Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Symbol Minimum T Tstg 0 -40 Typical +25 - Maximum +70 +85 Unit o C C o Important Notes Warnings * * Electrostatic Sensitive Device (ESD) Avoid ultrasonic exposure RoHS Compliance * This product complies with EU directive 2002/95/EC (RoHS) Pb Solderability * Compatible with JEDEC J-STD-020C Pb-free process, 260C peak reflow temperature (see soldering profile) Links to Additional Technical Information PCB Layout Tips Qualification Flowchart S-Parameters Soldering Profile RoHS Information 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 B 13-Oct-2005 Page 5 of 5