68.256 MHz SAW Filter 2.4 MHz Bandwidth Part Number 074949-518 DESCRIPTION * * * 68.256 MHz SAW bandpass filter with 2.4 MHz bandwidth. 35.05 X 20.6 mm 8-pin DIP package. RoHS compliant. TYPICAL PERFORMANCE Horizontal: Vertical (from top): Frequency Magnitude Magnitude Phase Deviation Group Delay Deviation S11 (63.26-73.26 MHz) 1 10 1 2 50 MHz / div dB/div dB/div deg/div ns/div S22 (63.26-73.26 MHz) IDT * SAW Products * 324 Clark Street, Worcester, MA 01606, USA * Ph 1-508-852-5400 * Fax 1-508-852-8456 www.idt.com DS074949-518 Rev 30-Apr-2008 ECN 35965 Page 1 of 3 68.256 MHz SAW Filter 2.4 MHz Bandwidth Part Number 074949-518 SPECIFICATION Parameter 1 Center Frequency, FC Insertion Loss 1 dB Bandwidth 3 dB Bandwidth 20 dB Bandwidth 35 dB Bandwidth Phase Linearity (Fc +/- 1.85 MHz) Phase Linearity (Fc +/- 2.4 MHz) Lower 3 dB Frequency Upper 3 dB Frequency Lower 20 dB Frequency Upper 20 dB Frequency Lower 35 dB Frequency Upper 35 dB Frequency Absolute Delay Group Delay Ripple (Fc +/- 1.85 MHz) 2 Rejection (30 to Fc-3.5 MHz) 2 Rejection (Fc+3.5 to 150 MHz) Input VSWR (Fc +/- 1.2 MHz) Output VSWR (Fc +/- 1.2 MHz) Source and Load Impedance Ambient Temperature Notes: Min 67.056 32 2.4 3.7 5.6 6.3 Fc-2.05 Fc+1.85 Fc-3.1 Fc+2.8 Fc-3.5 Fc+3.15 2.4 35 35 - Typ 68.256 33.6 3.08 3.86 5.81 6.43 2 5 2.45 30 42 42 1.4 1.4 50 25 Max 69.456 36 4.1 6.2 7 4 10 Fc-1.85 Fc+2.05 Fc-2.8 Fc+3.1 Fc-3.15 Fc+3.5 2.5 100 1.5 1.5 - Units MHz dB MHz MHz MHz MHz deg p-p deg p-p MHz MHz MHz MHz MHz MHz us ns p-p dB dB :1 :1 ohms 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 -18 - 85 63 10 Units C C dBm MATCHING CIRCUIT 8 4 Input 50 Single ended Output 50 Single ended GND 7 5 GND Notes: * Device is internally matched. No external matching components are required. IDT * SAW Products * 324 Clark Street, Worcester, MA 01606, USA * Ph 1-508-852-5400 * Fax 1-508-852-8456 www.idt.com DS074949-518 Rev 30-Apr-2008 ECN 35965 Page 2 of 3 68.256 MHz SAW Filter 2.4 MHz Bandwidth Part Number 074949-518 PACKAGE OUTLINE Units: mm Tolerances are typically 0.15 mm except where indicated. Pad Configuration: Input: 8 Input return: 7 Output: 4 Output return: 5 Ground: All other pins ISO 9001 Registered All specifications are believed to be accurate and reliable. However, MNC reserves the right to make changes without notice. (c) 2008 All rights reserved. IDT * SAW Products * 324 Clark Street, Worcester, MA 01606, USA * Ph 1-508-852-5400 * Fax 1-508-852-8456 www.idt.com DS074949-518 Rev 30-Apr-2008 ECN 35965 Page 3 of 3