Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Filter 137.50MHz Part No: MP04814 Model: TA1581A Rev No: 1 A. MAXIMUM RATING: Electrostatic Sensitive Device (ESD) 1. Input Power Level: 10dBm 2. DC Voltage: 10V 3. Operating Temperature: -40°C to +85°C 4. Storage Temperature: -40°C to +85°C B. ELECTRICAL CHARACTERISTICS: (Operating temperature: 25°C) 1. Terminating source impedance (single ended): ZS = 50Ω 2. Terminating load impedance (single ended): ZL = 50Ω Item Unit Min. Typ. Max. Note MHz - 137.5 - - Insertion Loss (@ 137.5MHz) IL dB - 1.5 3.5 - Passband Ripple (137 ~ 138MHz) dB - 0.4 1.5 - 2dB Bandwidth BW2 MHz 1.4 2.5 - - 3dB Bandwidth BW3 MHz 1.8 2.6 - - 20dB Bandwidth BW20 MHz - 4.5 6 - 129MHz dB 42 70 - - 134MHz dB 30 34 - - 141MHz dB 20 23 - - 146MHz dB 30 40 - - ppm/°C - -36 - - Center frequency Fc Attenuation (reference level from 0dB) Temperature Coefficient of Frequency TA1581A v1 1 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Filter 137.50MHz Part No: MP04814 Model: TA1581A Rev No: 1 C. OUTLINE DRAWING: 9: Input 4: Output 10: Input ground 5: Output ground 1, 2, 3, 6, 7, 8: To be grounded D. MEASUREMENT CIRCUIT: HP Network analyzer IN OUT 9 4 SAW Filter 1,2,3,5,6,7,8,10 E. PCB FOOTPRINT: TA1581A v1 2 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Filter 137.50MHz Part No: MP04814 Model: TA1581A Rev No: 1 F. FREQUENCY CHARACTERISTICS: TA1581A v1 3 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Filter 137.50MHz Part No: MP04814 Model: TA1581A Rev No: 1 G. PACKING: 1. Reel Dimension 2. Tape Dimension 208 TB Direction of Feed TA1581A v1 4 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Filter 137.50MHz Part No: MP04814 Model: TA1581A Rev No: 1 H. RECOMMENDED REFLOW PROFILE: 1. Preheating shall be fixed at 150 ~ 180°C for 60 ~ 90 seconds. 2. Ascending time to preheating temperature 150°C shall be 30 seconds min. 3. Heating shall be fixed at 220°C for 50 ~ 80 seconds and at 245 ~ 260°C peak (min. 10sec). 4. Time: 2 times. TA1581A v1 5