KR Electronics, Inc. KR Electronics www.krfilters.com General Description Features • 725 MHz Center Frequency • 550 MHz to 900 MHz Passband • Sharp Transition to Stopband • Surface Mount • 50 Ω Source and Load KR 2855 is a 550 MHz to 900 MHz bandpass filter. Other passband frequencies are available. Please consult the factory. Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div and 5 nsec/div) (10 dB/div) 24 Sep 2008 12:27:48 CH1 CH2 S31 S31 LOG DEL 1 dB/ 5 ns/ 24 Sep 2008 12:29:25 REF 0 dB REF 0 s CH1 S31 LOG 10 dB/ REF 0 dB Cor Cor Cor START 550 . 000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. STOP 900 . 000 000 MHz START 100 . 000 000 MHz STOP Web Email Phone Fax 1 600 . 000 000 www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 MHz KR Electronics, Inc. www.krfilters.com KR Electronics 2855 Specifications Parameter Specification Filter type Bandpass Insertion Loss < 2 dB ( 1 dB typical ) Attenuation at 550 MHz < 3 dB Attenuation at 900 MHz < 3 dB Attenuation at 500 MHz > 40 dB Attenuation at 1000 MHz > 40 dB Source and Load 50 Ω Physical Dimensions Notes: 1. Surface mount package — Metal cover 2. Dimensions in inches 3. Maximum reflow temperature is 209° C for 15 sec maximum. 4. If boards are cleaned after installation, dry units completely. KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2008, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2