KR Electronics, Inc. KR 2490 Lowpass Filter www.krfilters.com General Description Features • Flat passband response • Group delay equalized KR 2490 is a group delay equalized lowpass filters. The filter’s flat passband response and group delay equalization make it a good choice for video applications. Typical Performance CH1 CH2 S 21 S 21 Passband Amplitude & Group Delay Overall Response (0.2 dB/div & 10 nsec/div) 100 KHz to 8 MHz (5 dB/div) 100 KHz to 100 MHz log MAG delay .2 dB/ 10 ns/ REF 0 dB REF 120 ns 28 Aug 2003 11:16:02 1_:-.4425 dB 1_ 139.42 ns 28 Aug 2003 11:17:51 CH1 S 21 log MAG 5 dB/ REF 0 dB 7.000 000 MHz PRm PRm Cor 1 1 2 PRm Cor 1 Smo START START .100 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2003, KR Electronics, Inc. STOP .100 000 MHz STOP 100.000 000 MHz 8.000 000 MHz Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. www.krfilters.com KR Series 2490 Specifications Parameter Specification Filter type Lowpass Insertion Loss < 1 dB End of Passband (< 1 dB) 7 MHz < 3 dB Frequency 8 MHz Attenuation at 12 MHz > 30 dB Group Delay Ripple to 7 MHz Source and Load < 24 nsec 50 Ω Physical Dimensions Other configurations available on request All dimensions in inches KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2003, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2