KR Electronics, Inc. KR Electronics www.krfilters.com General Description Features • 12 MHz modified Bessel • Constant delay and linear phase • Good transient characteristics • 50 Ω • DIP Package KR 2758 is a 12 MHz modified bessel lowpass filter. The filter has constant delay and good transient characteristics. The 3 dB bandwidth is 12 MHz and the filter is designed for 50 Ω source and load impedance. Other passband frequencies, bandwidths and impedances are available. Please consult the factory. Typical Performance Amplitude & Group Delay Overall Response (1 dB/div & 1 nsec/div) (10 dB/div) 5 Feb 2007 11:50:04 CH1 CH2 1 S 21 S 21 log MAG delay 1 dB/ 1 ns/ 5 Feb 2007 11:47:37 REF 0 dB REF 27 ns CH1 PRm PRm Cor Cor S 21 log MAG 10 dB/ REF 0 dB PRm Cor Avg 16 Smo START 2 .100 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2007, KR Electronics, Inc. STOP 19.000 000 MHz START .100 000 MHz STOP 100.000 000 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 Electronics 2758 Specifications Parameter Specification Filter type Lowpass 3 dB Bandwidth 12 MHz Attenuation at 40 MHz Constant Group Delay to Source & Load Approximately 50 dB 19 MHz 50 Ω Physical Dimensions Metal Case Pin 1 is Input Pin 5 is Output All other Pins are Ground All leads .030” diameter Dimensions inches KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2007, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2