Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK 435.50MHz SAW Filter Part No: MA08948 Model: TB0490A REV NO.: 2 A. MAXIMUM RATING: 1.Operating Temperature: -20 °C ~ 70 °C 2. Storage Temperature: -40 °C ~ +85 °C B. CHARACTERISTICS : Characteristics Min. Center frequency FC MHz Minimum Insertion loss I.L. dB 3dB BW MHz Amplitude Ripple (FC ±13.5MH) dB - 27 Relative Rejection (Reference to Minimum Insertion loss) FC + 35.5MH dB 35 FC - 35.5MH dB 35 FC + 57.5MH dB 45 FC - 57.5MH dB 45 Temp Coefficient ppm/K Matching: 1.The input of the filter will be matched to 50 ohm 2.The output of the filter will be matched to 50 ohm TB0490A v2 Value Typ. Max. Note - 435.5 12.4 33.9 0.95 13.5 1.2 52 54 59 53 -94 - - 1 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK 435.50MHz SAW Filter Part No: MA08948 Model: TB0490A REV NO.: 2 C. FREQUENCY CHARACTERISTICS: (1) S21 Response:(span 300MHz) (2) Passband of Response: (span: 40MHz) TB0490A v2 2 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK 435.50MHz SAW Filter Part No: MA08948 Model: TB0490A REV NO.: 2 (3) S11 Smith Chart: (span 300MHz) (4) S22 Smith Chart: (span 300MHz) TB0490A v2 3 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK 435.50MHz SAW Filter Part No: MA08948 Model: TB0490A REV NO.: 2 D. TEST CIRCUIT: L1=6.8nH, C1=10pF, L2=8.2nH, C2=12pF E. OUTLINE DRAWING: Pin 1: RF input Pin 2,3,6,7: Ground Pin 5: RF output Pin 4,8: Case Ground TB0490A v2 4 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK 435.50MHz SAW Filter Part No: MA08948 Model: TB0490A REV NO.: 2 F. PACKING: 1.REEL DIMENSION 2.TAPE DIMENSION Direction of feed TB0490A v2 5 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK 435.50MHz SAW Filter Part No: MA08948 Model: TB0490A REV NO.: 2 G. RECOMMENDED REFLOW PROFILE: TB0490A v2 6