426 MHz SAW Bandpass Filter 4.9 MHz bandwidth Part Number SF0426BA02365S Integrated Circuit Systems, Inc. TYPICAL PERFORMANCE Horizontal: 4 MHz/div Vertical (from top): Magnitude Magnitude Phase Linearity 10 1 5 dB/div dB/div deg/div SPECIFICATION Parameter Center Frequency (Fc) 1 Minimum Insertion Loss Lower 1 dB band Edge Point Upper 1 dB Band Edge Point Lower 3 dB Band Edge Point Upper 3 dB Band Edge Point Lower 40 dB Band edge Point Upper 40 dB Band Edge Point Rejection (417.5 to 421.5 MHz) Rejection (430.7 to 436 MHz) Rejection (100 to 417.5 MHz) Rejection (436 to 500 MHz) Passband Ripple (423.56 to 428.44 MHz) Phase Ripple (423.56 to 428.44 MHz) Group Delay Variation (423.56 to 428.44 MHz) 4 Triple Transit Suppression Source and Load Impedance Input Power Operating Temperature Range Notes: Min Typ 426.00 Max 22.0 423.56 428.44 423.31 428.69 422.13 429.92 44 44 48 48 1 7.5 130 40 50 10 23 +10 70 Units MHz dB MHz MHz MHz MHz MHz MHz dB dB dB dB dB deg p-p ns p-p dB Ω dBm °C 1. Average of the lower and upper 3 dB band edge frequencies. 2. Specifications apply over operating temperature with filter matched to 50 ohms. 3. All dB values are measured relative to the minimum insertion loss. 4. A smoothing aperture of 0.125 MHz is to be used for this measurement. Rev X8 21-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 QF12/3 426 MHz SAW Bandpass Filter 4.9 MHz bandwidth Part Number SF0426BA02365S Integrated Circuit Systems, Inc. PACKAGE OUTLINE Units: mm Pad Configuration: Input: 11 Input Return: 12 Output: 5 Output Return: 6 Ground: 1,2,3,4,7,8,9,10 MATCHING CIRCUIT Ls1 11 5 Ls2 Cp1 Cp2 12 Typical component values: Ls1 = 17 nH Cp1 = 18 pF 6 Ls2 = 15 nH Cp2 = 18 pF (Minimum inductor Q = 40) Notes • • Maximum 2% tolerance matching components shall be used. Tuning values shown are for reference only. Optimum values may change depending upon board layout. ISO 9001 Registered Rev X8 21-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