70 MHz SAW Bandpass Filter 26 MHz bandwidth Part Number SF0070CF51851T TYPICAL PERFORMANCE Horizontal: 10 MHz/div Vertical (from top): Magnitude Magnitude Phase Linearity Group Delay Deviation 10 1 8 30 dB/div dB/div deg/div ns/div SPECIFICATION Parameter Center Frequency ( Fc) 1 Insertion Loss at Fc 1 dB Bandwidth 2 3 dB Bandwidth 40 dB Bandwidth Passband Ripple 3 Phase Ripple Group Delay Ripple Absolute Delay Ultimate Rejection Substrate Material Ambient Temperature Notes: Min. 69.8 Typ. Max. 70.0 70.2 22.4 25.5 24.5 24.56 26.0 26.1 31.4 34 0.5 1.0 3.5 6 30 35 1.4 50 60 128 Lithium Niobate 25 Units. MHz dB MHz MHz MHz dB p-p deg p-p ns p-p us dB ºC 1. Average of the lower and upper 3 dB band edge frequencies. 2. Relative to level at Fc. 3. Excludes band edge transitions. 4. A smoothing aperture of 250 kHz may be applied to Group Delay Ripple measurement. Spectrum Microwave 400 Nickerson Road, Marlborough, MA 01752, USA • Phone 508-251-6400 • Fax 508-251-6401 www.SpectrumMicrowave.com SF0070CF51851T Rev X3 19-Feb-2010 ECN 36650 Page 1 of 2 70 MHz SAW Bandpass Filter 26 MHz bandwidth Part Number SF0070CF51851T PACKAGE OUTLINE Units: mm Pin Configuration: Input: 14 Input Return: 1 Output: 8 Output Return: 7 Ground: 2, 9 MATCHING CIRCUIT Ls1 Ls2 14 8 Input 50 Ω Single Ended Output 50 Ω Single Ended 1 Component values: (Minimum Q = 45) Ls1 = 397 nH 7 Ls2 = 338 nH Notes • Recommend use of 2% tolerance components. • Tuning values shown are for reference only. Optimum values may change depending upon board layout. 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 508-251-6400 • Fax 508-251-6401 www.SpectrumMicrowave.com SF0070CF51851T Rev X3 19-Feb-2010 ECN 36650 Page 2 of 2