2455

KR 2455 Lowpass Filter General Description KR 2455 is a 45 MHz lowpass filter. The filter is group delay equalized and includes sin(x)/x compensation for a sampling frequency of 105 MHz. The filter can be supplied without sin(x)/x correction. Please consult the factory for other passband or sampling frequencies. KR Electronics, Inc. www.krfilters.com Features Features • 45 MHz passband • Sin(x)/x correction • Sharp transition to 60 dB • 50 Ω Typical Performance Effective Passband & Group Delay (0.25 dB/div & 5 nsec/div) 27 Nov 2002 10:18:06 CH1 CH2 S21 /M S21 LOG DEL .25 dB/ 5 ns/ REF -4.25 dB REF 55 ns CH1 S21 LOG 10 dB/ Overall Response (10 dB/div) 27 Nov 2002 10:18:52 REF 0 dB Cor Cor Smo Cor START . 100 000 MHz STOP 50 . 000 000 MHz START . 100 000 MHz STOP 200 . 000 000 MHz Figure 1 Figure 2 KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2002, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 1 KR KR Electronics, Inc. KR KR 2455 Specifications Parameter Filter type End of Passband Effective Passband Ripple Insertion Loss (at 100 KHz) Group Delay Ripple Sin(x)/x Compensation Sampling Frequency Start of Stopband Stopband Attenuation Source & Load Specification Lowpass 45 MHz < 0.5 dB < 4 dB < 10 nsec Yes 105 MHz 60 MHz 60 dB 50 Ω www.krfilters.com Physical Dimensions KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2002, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 2