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 Ω Single ended Output 50 Ω 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. © 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