KR Electronics, Inc. KR 2454 Lowpass Filter www.krfilters.com General Description KR 2454 is a 37 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 • 37 MHz passband • Sin(x)/x correction • Sharp transition to 60 dB • 50 Ω • SMA connectors Typical Performance Effective Passband & Group Delay Overall Response (0.25 dB/div & 5 nsec/div) (10 dB/div) 27 Nov 2002 09:48:27 27 Nov 2002 09:50:11 CH1 CH2 S21 /M S21 LOG DEL .25 dB/ 5 ns/ REF -3 dB REF 70 ns CH1 Cor S21 LOG 10 dB/ REF 0 dB Cor Cor START . 100 000 MHz STOP Figure 1 KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2002, KR Electronics, Inc. 40 . 000 000 MHz START . 100 000 MHz STOP 100 . 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 2454 Specifications Parameter Specification Filter type Lowpass End of Passband 37 MHz Effective Passband Ripple < 0.5 dB Insertion Loss (at 100 KHz) < 4 dB Group Delay Ripple Sin(x)/x Compensation Sampling Frequency Start of Stopband < 10 nsec Yes 105 MHz 52.17 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