257.5 MHz SAW Filter 35 MHz Bandwidth Part Number: SF0258BA02488S DESCRIPTION • • • 257.5 MHz SAW bandpass filter with 35 MHz bandwidth. 13.3 x 6.5 mm ceramic LCC package. RoHS compliant. TYPICAL PERFORMANCE 50. ns/" Horizontal: Vertical (from top): S11 (177.5-337.5 MHz) Frequency Magnitude Magnitude Phase Deviation Group Delay Deviation 16 10 1 5 50 MHz /div dB/div dB/div deg/div ns/div S22 (177.5-337.5 MHz) Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0258BA02488S Rev A 19-Mar-2010 ECN 36650 Page 1 of 3 257.5 MHz SAW Filter 35 MHz Bandwidth Part Number: SF0258BA02488S SPECIFICATION Parameter Center Frequency, FC Minimum Insertion Loss 1 Lower 1.5 dB band Edge 3 Upper 1.5 dB band Edge 3 Lower 45 dB band Edge 3 Upper 45 dB band Edge 3 Relative Attenuation (Fc/2 to 235.5 MHz) 3 Relative Attenuation (279.5 to 1.5*Fc MHz) 3 Absolute Delay Amplitude Ripple 2 Amplitude Ripple (any 1.25 MHz BW) Source/Load Impedance (differential) Temperature Coefficient of Frequency Ambient Temperature Notes: Min 275.0 235.4 45 45 - - Typ 257.5 21.4 238.8 276.2 236.3 278.8 54 54 0.99 0.9 0.42 50 -82 40 Max 23 240.0 279.6 1.00 1.5 0.5 - Units MHz dB MHz MHz MHz MHz dB dB us dB p-p dB p-p ohms ppm/˚C ˚C 1. Measured with 50Ω analyzer. 2. Measured within the 1 dB bandwidth over temperature. 3. Measured relative to the Insertion Loss Value. MAXIMUM RATINGS Parameter Storage Temperature Range Operating Temperature Range Input Power Level Min -40 -10 - Max 85 80 +10 Units ˚C ˚C dBm MATCHING CIRCUIT 11 5 Input 50 Ω Balanced Output 50 Ω Balanced 12 6 Note: Matching components are not required. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0258BA02488S Rev A 19-Mar-2010 ECN 36650 Page 2 of 3 257.5 MHz SAW Filter 35 MHz Bandwidth Part Number: SF0258BA02488S PACKAGE OUTLINE SUGGESTED FOOTPRINT Units: mm Tolerances are ±0.15 mm except where indicated. Pad Configuration: Input: 11 Input Return: 12 Output: 5 Output Return: 6 Ground: 1,2,3,4,7,8,9,10 Package Material: Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 1 µm min, over a 1.3-8.9 µm Ni plating ISO 9001 Registered All specifications are believed to be accurate and reliable. However, Spectrum Microwave reserves the right to make changes without notice. © 2010 All rights reserved. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0258BA02488S Rev A 19-Mar-2010 ECN 36650 Page 3 of 3