KR Electronics 2538 Bandpass Filter KR Electronics, Inc. www.krfilters.com General Description KR 2538 is a 85 MHz surface mount bandpass filter. Other cen- Features ter frequencies and bandwidths available. Please consult the fac- • Surface Mount Package tory. • Sharp Transition to Stopband • 20 MHz 1 dB Bandwidth • 50 Ω Source and Load Typical Performance Passband Amplitude & Group Delay Overall Response (1 dB/div and 5 nsec/div) (5 dB/div) 3 May 2004 14:34:24 CH1 CH2 S 21 S 21 log MAG delay 1 dB/ 5 ns/ 3 May 2004 14:25:32 REF 0 dB REF 50 ns CH1 PRm Cor S 21 log MAG 5 dB/ REF 0 dB PRm 1 Cor 2 PRm Cor Smo CENTER 85.000 000 MHz CENTER 85.000 000 MHz KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2004, KR Electronics, Inc. SPAN 100.000 000 MHz SPAN 20.000 000 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 2538 Bandpass Specifications Parameter Specification Filter type Bandpass Center Frequency 85 MHz Insertion Loss < 4 dB (1 dB typical) Min 1 dB Bandwidth 20 MHz Attenuation at 65 MHz & below > 35 dB Attenuation 105 MHz & above > 27 dB 50 Ω Source and Load Physical Dimensions Notes: 1. Surface mount package — Metal cover, open frame 2. Dimensions in inches 3. Use SN60 or SN63 solder during installation 4. If boards are cleaned after installation, units must be completely dried to remove any entrapped moisture that will effect electrical performance KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2004, KR Electronics, Inc. Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2