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Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, Ilminster Somerset, TA19 9DQ, UK 435.720MHz SAW Resonator Model: TC0250A Part No: MA08665 REV NO.: 1 TC0250A v1 1 A. FEATURES: 1. 1-Port Resonator. B. MAXIMUM RATING: 1.Input Power Level: 0 dBm 2.DC voltage: 12 V 3.Operating Temperature: -40°C to +85°C 4.Storage Temperature: -40°C to +85°C C. ELECTRICAL CHARACTERISTICS: Reference Temperature TA=25°C Characteristic Units Minimum Typical Maximum Center frequency Fc MHz 435.645 435.72 435.795 Insertion Loss IL dB - 1.2 2.0 Unload quality factor QU 6000 11000 - Ageing of fc ppm/yr - - ±10 Motional capacitance C1 fF - 1.68 - Motional inductance L1 µH - 85.4 - Motional resistance R1 Ohm - 17.8 - Parallel capacitance Co pF - 3.08 - Frequency Temperature coefficient (TCf) ppm/c*2 - 0.032 - Turnover To deg.C 10 25 40 Package size SMD 5X5X1.4mm Temperature dependence of fc: fc(TA)=fc(TO)(1+TCf(TA-TO)2)
Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, Ilminster Somerset, TA19 9DQ, UK 435.720MHz SAW Resonator Model: TC0250A Part No: MA08665 REV NO.: 1 TC0250A v1 2 D. OUTLINE DRAWING: E. EQUVALENT CIRCUIT: One-Port Resonator: R1 C1 L1 # 1 # 2 Source Impedance Load Impedance 50Ω50Ω
Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, Ilminster Somerset, TA19 9DQ, UK 435.720MHz SAW Resonator Model: TC0250A Part No: MA08665 REV NO.: 1 TC0250A v1 3 F. FREQUENCY CHARACTERISTICS: Resonator435.72MHz Frequency Characteristics (S21) -25 -20 -15 -10 Frequency (Center Frequency435.72MHz Span 3MHz) dB G . TEST CIRCUIT: 50Ω Network analyzer 50Ω SAW Resonator B E A? C? D? F H. PCB FOOT PRINT: To 50Ω Network Analyzer From 50Ω Network Analyzer
Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, Ilminster Somerset, TA19 9DQ, UK 435.720MHz SAW Resonator Model: TC0250A Part No: MA08665 REV NO.: 1 TC0250A v1 4 H. PACKING: 1.REEL DIMENSION 2. TAPE DIMENSION Feed Direction