Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com SAW Filter 139MHz Part No: MA05254 Model: TA0245A Rev No: 2 A. MAXIMUM RATING: 1. Input Power Level: 0dBm 2. DC voltage: 10V 3. Operating Temperature: -10°C to +50°C 4. Storage Temperature: -40°C to +85°C B. ELECTRICAL SPECIFICATION: Characteristics Specification Note 139 1 6.5 Max. 1 Fc -100MHz to -38.8MHz (dB) 50 Min. 1 Fc +38.8MHz to +100MHz (dB) 42 Min. Center frequency Fc (MHz) Insertion Loss IL (Within Fc ± 4MHz) (dB) Attenuation: (Reference level from 0dB) (dB) Impedance at Fc Input ZIN = RIN // CIN Output ZOUT = ROUT // COUT 210Ω // 11pF 2 210Ω // 11pF 2 Note 1: The standard definitions is in JIS C 6703 Note 2: Source im pedance Load im pedance 50Ω 50Ω Z IN =210Ω // 11pF Z OU T =210Ω // 11pF TA0245A v1 1 Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com SAW Filter 139MHz Part No: MA05254 Model: TA0245A Rev No: 2 C.FREQUENCY CHARACTERISTICS: TA0245A 0 -2 -4 Att.(dB) -6 -8 -10 -12 -14 -16 -18 143 145 147 149 159 169 179 189 141 139 137 135 133 131 129 -20 Freq.(MHz) TA0245A 0 -8 -16 Att. (dB) -24 -32 -40 -48 -56 -64 -72 149 139 129 119 109 99 89 -80 Freq. (MHz) TA0245A v1 2 Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com SAW Filter 139MHz Part No: MA05254 Model: TA0245A Rev No: 2 D. MEASUREMENT CIRCUIT: Net work analy zer 50Ω 160Ω 2 SAW F ilter L 6 160Ω 50Ω L 1 , 3 ,5 , 7 0 dB Level Net work analy zer 50Ω 160Ω 160Ω 50Ω E. OUTLINE DRAWING: TA0245A v1 3 Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com SAW Filter 139MHz Part No: MA05254 Model: TA0245A Rev No: 2 F. PACKING: 1. REEL DIMENSION 2. TAPE DIMENSION TA0245A v1 4