70 MHz SAW Bandpass Filter 26 MHz bandwidth Part Number SF0070CF51851T Integrated Circuit Systems, Inc. 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. Rev X1 22-Apr-05 Page 1 of 2 Integrated Circuit Systems • Surface Acoustic Wave Products 324 Clark Street, Worcester, MA 01606, USA • Phone 508-852-5400 • Fax 508-852-8456 www.icst.com QF12/3 70 MHz SAW Bandpass Filter 26 MHz bandwidth Part Number SF0070CF51851T Integrated Circuit Systems, Inc. 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 Rev X1 22-Apr-05 Page 2 of 2 Integrated Circuit Systems • Surface Acoustic Wave Products 324 Clark Street, Worcester, MA 01606, USA • Phone 508-852-5400 • Fax 508-852-8456 www.icst.com QF12/3