KR Electronics, Inc. KR 2579 Bandpass Filter www.krfilters.com General Description KR 2579 is a 60MHz to 88 MHz surface mount bandpass filter. Features The filter has >80 dB rejection below 40 MHz & above 108 • Surface Mount Package MHz. Other center frequencies and bandwidths available. Please • Sharp Transition to Stopband consult the factory. • > 80 dB Stopband • 50 Ω Source and Load Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div & 10 nsec/div) (10 dB/div) 21 Dec 2004 14:13:35 CH1 CH2 S21 S21 LOG DEL 1 dB/ 10 ns/ 21 Dec 2004 14:28:08 REF 0 dB REF 40 ns CH1 S21 LOG 10 dB/ REF 0 dB Cor Cor Avg 16 Smo Cor START 59 . 000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2004, KR Electronics, Inc. STOP 89 . 000 000 MHz START 10 . 000 000 MHz STOP Web Email Phone Fax 1 000 . 000 000 MHz www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. www.krfilters.com KR 2579 Bandpass Specifications Parameter Specification Filter type Bandpass Center Frequency 74 MHz Insertion Loss < 4 dB (< 2 dB typical) Passband (< 3 dB) 60 MHz to 88 MHz Attenuation at 40 MHz & below > 80 dB Attenuation 108 MHz to 500 MHz > 80 dB Typical 1 dB Bandwidth 30 MHz Typical 3 dB Bandwidth 37 MHz Typical 60 dB Bandwidth 57.8 MHz Typical 80 dB Bandwidth 64.2 MHz 50 Ω Source and Load Physical Dimensions Notes: 1. Surface mount package — Metal cover, open frame 2. Dimensions in inches 3. Use SN60 or SN63 solder during installation 4. If boards are cleaned after installation, units must be completely dried to remove any entrapped moisture that will effect electrical performance KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2004, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2