Part Number 855735 70 MHz SAW Filter Data Sheet Features For broadband applications Typical 3 dB bandwidth of 0.31 MHz High attenuation Single-ended operation Ceramic Surface Mount Package (SMP) Replaces Sawtek P/N 851541 (BW 3dB=0.25 MHz) Hermetic RoHS compliant (2002/95/EC), Pb-free Pb Package Pin Configuration Surface Mount 24.60 x 9.00 x 2.31 mm Bottom View 1 2 3 4 5 2.31 NOM. 2.62 MAX. 10 9 8 7 6 1.02 24.6 1.91 1.80 Pin No. Description R0.5 9.00 1 Input return 2.31 5 Output 6 Output return 3.53 x 4.83 1.02 10 Input 2,3,4 Case ground 7,8,9 Case ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width +0.13mm/-0.20mm Body: Al O ceramic 2 3 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 27-Oct-2005 Page 1 of 5 Part Number 855735 70 MHz SAW Filter Data Sheet (1) Electrical Specifications (2) o Operating Temperature Range: 0 to +70 C (3) Parameter Minimum Typical Maximum Unit Center Frequency - 70 - MHz Minimum Insertion Loss - 16.36 20 dB (4) Lower 1 dB Bandedge - 69.90 69.935 MHz Upper 1 dB Bandedge 70.065 70.09 - MHz (4) Lower 3 dB Bandedge - 69.84 69.87 MHz Upper 3 dB Bandedge 70.13 70.16 - MHz (4) Lower 40 dB Bandedge 69.5 69.56 - MHz Upper 40 dB Bandedge - 70.46 70.5 MHz Amplitude Variation 69.935 - 70.065 MHz - 0.42 1 dB Phase Linearity 69.935 - 70.065 MHz - 0.84 3 deg Group Delay Variation 69.935 - 70.065 MHz - 249.70 470 nsec Absolute Delay - 3.19 - sec (4) Relative Attenuation 10 - 68 MHz 50 69 - dB 72 - 80 MHz 40 52 - dB 80 - 135 MHz 50 64.5 - dB 135 - 145 MHz 40 49.5 - dB 145 - 200 MHz 50 63 (5) Source Impedance: - 50 - (5) Load Impedance: - 50 - Notes: 1. All specifications are based on the test circuit shown below 2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature 3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances 4. All attenuation measurements are measured relative to minimum insertion loss 5. 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 50 68pF 68pF 50 50 Single-ended 1,2,3,4 6,7,8,9 Subject to change or obsolescence without notice Rev B 27-Oct-2005 Page 2 of 5