2838-30

KR Electronics, Inc. KR Electronics General Description www.krfilters.com KR 2838-30 is a 140 MHz group delay equalized bandpass filter. Features The filter has a passband from 125 MHz to 155 MHz. Other • 140 MHz Center Frequency passband frequencies are available. Please consult the factory. • Sharp Transition to Stopband • Group Delay Equalized • 50 Ω Source and Load Typical Performance Passband Amplitude & Group Delay (1 dB/div and 5 nsec/div) 10 Jun 2008 13:02:40 CH1 CH3 S31 S31 LOG DEL 1 dB/ 5 ns/ REF -3 dB REF 70 ns CH2 S31 LOG 10 dB/ Overall Response (10 dB/div) 10 Jun 2008 13:03:56 REF 0 dB Cor Smo Cor Cor Avg 16 CENTER 140 . 000 000 MHz SPAN 200 . 000 000 MHz CENTER 140 . 000 000 MHz SPAN 30 . 000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. KR Electronics 2838-30 Specifications Parameter Filter type Insertion Loss Passband (< 2 dB) Passband Ripple Passband Group Delay Ripple 128 MHz to 152 MHz Attenuation at 113 MHz & 167 MHz Attenuation at 104 MHz & 176 Source and Load Specification Bandpass < 5.5 dB ( 4.5 dB typical ) 125 MHz to 155 MHz < 1.5 dB < 5 nsec > 40 dB > 55 dB 50 Ω www.krfilters.com Physical Dimensions Notes: 1. Surface mount package — Metal cover open frame 2. Dimensions in inches 3. Maximum reflow temperature is 230° C for 10 sec maximum. 4. If boards are cleaned after installation, units must be completely dried. Web Email Phone Fax www.krfilters.com sales@krfilters.com (732) 636-1900 (732) 636-1982 Page 2 KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc.