Part Number 854920 140 MHz SAW Filter Data Sheet Features Usable bandwidth of 18 MHz Typical 3 dB bandwidth of 18.84 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 - 15-Mar-2005 Page 1 of 5 Part Number 854920 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 - 9.1 12 dB O 1 dB Bandwidth 17.25 17.69 - MHz 3 dB Bandwidth 18 18.84 - MHz 35 dB Bandwidth - 22.79 24.1 MHz 40 dB Bandwidth - 22.79 48 MHz Passband Ripple 132.8 - 147.2 MHz - 0.63 1 dB Phase Linearity 132.8 - 147.2 MHz - 6 10 deg Group Delay Variation 132.8 - 147.2 MHz - 64 120 nsec o Temperature Coefficient - -94 - 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 120nH 120nH 11 5 50 50 Single-ended 22pF 10pF 50 Single-ended 50 1,2,3,4,6 Input Output 7,8,9,10,12 Subject to change or obsolescence without notice Rev - 15-Mar-2005 Page 2 of 5