KR Electronics, Inc. KR 2455 Lowpass Filter www.krfilters.com 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. Features • 45 MHz passband • Sin(x)/x correction • Sharp transition to 60 dB • 50 Ω Typical Performance Effective Passband & Group Delay Overall Response (0.25 dB/div & 5 nsec/div) (10 dB/div) 27 Nov 2002 10:18:52 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 Cor S21 LOG 10 dB/ REF 0 dB Cor Smo Cor START . 100 000 MHz STOP Figure 1 KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2002, KR Electronics, Inc. 50 . 000 000 MHz START . 100 000 MHz STOP 200 . 000 000 Figure 2 Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 MHz KR Electronics, Inc. www.krfilters.com KR 2455 Specifications Parameter Specification Filter type Lowpass End of Passband 45 MHz Effective Passband Ripple < 0.5 dB Insertion Loss (at 100 KHz) < 4 dB Group Delay Ripple Sin(x)/x Compensation < 10 nsec Yes Sampling Frequency 105 MHz Start of Stopband 60 MHz Stopband Attenuation 60 dB Source & Load 50 Ω Physical Dimensions KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2002, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2