Part Number 855844 225 MHz SAW Filter Data Sheet Features For GSM IF applications Usable bandwidth of 160 kHz Low loss High attenuation Balanced operation Ceramic Surface Mount Package (SMP) Hermetic RoHS compliant (2002/95/EC), Pb-free Pb Package Pin Configuration Surface Mount 5.00 x 5.00 x 1.32 mm Bottom View 1 2 3 0.66 1.32 NOM. 8 4 1.52 MAX. 5.00 1.27 76 5 Pin No. Description 1 Input 5.00 2 Input return 1.27 5 Output 6 Output return 3,4,7,8 Case ground 2.08 0.64 Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width +0.15/-0.10mm 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 13-Oct-2005 Page 1 of 5 Part Number 855844 225 MHz SAW Filter Data Sheet (1) Electrical Specifications (2) o Operating Temperature Range: -20 to +70 C (3) Parameter Minimum Typical Maximum Unit Center Frequency, f - 225 - MHz o Insertion Loss at 225 MHz Excluding losses due to matching - 2.3 3.8 dB Including losses in matching test circuit shown below - 3.5 5.0 dB Amplitude Variation 224.9200 - 225.0800 MHz - 0.5 3.2 dB p-p 224.9325 - 225.0675 MHz - 0.3 2.2 dB p-p (4) Rejection 223 - 224.4 MHz 35 45 - MHz 224.4 - 224.6 MHz 26 32 - MHz 224.6 - 224.8 MHz 5 11 - MHz 225.2 - 225.4 MHz 5 13 - MHz 225.4 - 225.6 MHz 26 30 - MHz 225.6 - 227.0 MHz 35 39 - MHz Out of Band Rejection 10 - 215 MHz 42 45 - dB 235 - 750 MHz 42 45 - dB Group Delay Ripple 224.9200 - 225.0800 MHz - 0.9 1.8 sec 224.9325 - 225.0675 MHz - 0.6 1.6 sec 224.9500 - 225.0500 MHz - 0.2 1.3 sec (5) Optimal Source Impedance: - - 704 332nH (5) Optimal Load Impedance: - - 739 359nH 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 manufacturing tolerances 4. Relative to insertion loss at 225 MHz 5. This is the complex conjugate of the unmatched filters impedance resulting in maximum power transfer Test Circuit: 7pF 7pF 2 5 50 82nH 82nH 50 50 Balanced 1 3,4,7,8 6 7pF 7pF Subject to change or obsolescence without notice Rev B 13-Oct-2005 Page 2 of 5