Part Number 855737 70 MHz SAW Filter Data Sheet Features For broadband applications Typical 3dB bandwidth of 1 MHz High attenuation Single-ended operation Ceramic Surface Mount Package (SMP) Replaces Sawtek P/N 851544 (BW 3dB=1 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 1.02 3.53 x 4.83 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 0.20mm and width +0.13/-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 855737 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 - 22.2 23 dB (4) Lower 1 dB Bandedge - 69.47 69.54 MHz Upper 1 dB Bandedge 70.46 70.50 - MHz (4) Lower 3 dB Bandedge - 69.37 69.41 MHz Upper 3 dB Bandedge 70.59 70.62 - MHz (4) Lower 40 dB Bandedge 68.91 68.95 - MHz Upper 40 dB Bandedge - 71.06 71.09 MHz Amplitude Variation 69.54 - 70.46 MHz - 0.55 1 dB p-p Phase Linearity 69.54 - 70.46 MHz - 2.2 5 deg p-p Group Delay Variation 69.54 - 70.46 MHz - 100 190 nsec (4) Relative Attenuation 10 - 68.5 MHz 48 53 - dB 68.5 - 68.91 MHz 40 45 - dB 71.09 - 75 MHz 40 45 - dB 75 - 110 MHz 50 55 - dB 110 - 122 MHz 35 37 - dB 122 - 135 MHz 36 40 - dB 135 - 200 MHz 50 65 - dB (5) Source Impedance - 50 - (5) Load Impedance - 50 - Substrate Material - Quartz - - 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 7pF 820nH 220nH 10 5 50 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