Part Number 854909 140 MHz SAW Filter Data Sheet Features Usable bandwidth of 4 MHz Typical 3 dB bandwidth of 4.6 MHz Low loss High attenuation Single-ended operation, 50 Ceramic Surface Mount Package (SMP) Hermetic Package Pin Configuration Surface Mount 13.30 x 6.50 x 1.75 mm Bottom View 1 2 3 4 1.75 NOM. 12 5 1.96 MAX. 11 6 0.76 10 9 8 7 13.3 2.54 2.18 Pin No. Description 6.50 2.54 5 Output 11 Input 6,12 Ground 1,2,3,4 Case Ground 1.17 x 3.76 0.79 1.50 7,8,9,10 Case Ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length and width 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 - 09-May-2005 Page 1 of 5 Part Number 854909 140 MHz SAW Filter Data Sheet (1) Electrical Specifications (2) o Operating Temperature: +25 C Parameter Minimum Typical Maximum Unit Center Frequency 139.6 140 140.4 MHz Insertion Loss at F - 10.85 12.5 dB O 1 dB Bandwidth 3.4 3.9 - MHz 3 dB Bandwidth 4 4.6 - MHz 40 dB Bandwidth - 7.46 9.1 MHz Passband Ripple 138.4 - 141.6 MHz - 0.42 1 dB Phase Linearity 138.4 - 141.6 MHz - 2 6 deg Group Delay Variation 138.4 - 141.6 MHz - 27 100 nsec Absolute Delay - 1.2 - sec o Temperature Coefficient - -23 - ppm/ C (3) Source Impedance - 50 - (3) Load Impedance - 50 - Notes: 1. All specifications are based on the test circuit shown below 2. All specifications are tested at room temperature only 3. 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 82nH 68nH 11 5 50 50 50 Single-ended Single-ended 50 1,2,3,4,6 Input Output 7,8,9,10,12 Subject to change or obsolescence without notice Rev - 09-May-2005 Page 2 of 5