249.6 MHz SAW Filter 10 MHz Bandwidth Part Number SF0250BA03223S DESCRIPTION • • • 249.6 MHz SAW bandpass filter with 10 MHz bandwidth. 9.1 x 4.8 mm ceramic LCC package. RoHS compliant. TYPICAL PERFORMANCE Amp 10 dB/div Amp 1 dB/div Phase 10 deg/div Delay 100 ns/div Center = 249.6 MHz, 10 MHz/div (125 kHz incr) S11 (199.6-299.6 MHz) S22 (199.6-299.6 MHz) Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0250BA03223S Rev A ECN 36650 19-Mar-2010 Page 1 of 3 249.6 MHz SAW Filter 10 MHz Bandwidth Part Number SF0250BA03223S SPECIFICATION Parameter Center Frequency, FC 1 Insertion Loss Amplitude variation (244.6 to 254.6 MHz) Phase Linearity (244.6 to 254.6 MHz) Absolute Delay Lower 1dB Band Edge 2 Upper 1dB Band Edge 2 Relative Attenuation (149.6 to 234.6 MHz) 2 Relative Attenuation (234.6 to 235.6 MHz) 2 Relative Attenuation (235.6 to 237 MHz) 2 Relative Attenuation (237 to 239.6 MHz) 2 Relative Attenuation (259.6 to 262 MHz) 2 Relative Attenuation (262 to 263.6 MHz) 2 Relative Attenuation (263.6 to 264.6 MHz) 2 Relative Attenuation (264.6 to 349.6 MHz) 2 Source and Load Impedance Temperature Coefficient of Frequency Ambient Temperature Notes: Min 254.6 47 40 23 13 13 23 40 43 - Typ 249.6 10.8 0.7 1 570 243.89 255.18 53 55 55 48 35 47 47 55 50 -18 25 Max 13.5 1 4 244.6 - Units MHz dB dB p-p deg RMS ns MHz MHz dB dB dB dB dB dB dB dB ohms ppm/˚C ˚C - 1. Reference frequency. Computed as mean of the 3 dB frequencies. 2. All dB values are referenced to the insertion loss value. MAXIMUM RATINGS Parameter Storage Temperature Range Operating Temperature Range Input Power Level Min Max -40 -20 - 85 85 10 Units ˚C ˚C dBm MATCHING CIRCUIT 10 5 Input 50 Ω Single ended Output 50 Ω Single ended All other pads GND Ls1 = 39 nH Cp1 = 27 pF GND Ls2 = 33 nH Cp2 = 22 pF Notes: • Recommend 2% or better tolerance matching components. Typical inductor Q=40. • Optimum values may change depending on board layout. Values shown are intended as a guide only. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401 www.SpectrumMicrowave.com DSSF0250BA03223S Rev A ECN 36650 19-Mar-2010 Page 2 of 3 249.6 MHz SAW Filter 10 MHz Bandwidth Part Number SF0250BA03223S PACKAGE OUTLINE Units: mm Tolerances are typically ±0.15 mm except where indicated. Pad Configuration: Input: 10 Output: 5 Ground: All other pads Package Material: Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 1 µm min, over a 1.3-8.9 µm Ni plating MARKING 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 DSSF0250BA03223S Rev A ECN 36650 19-Mar-2010 Page 3 of 3