KR 2455

KR Electronics, Inc.
KR 2455 Lowpass Filter
www.krfilters.com
General Description
KR 2455 is a 45 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
• 45 MHz passband
• Sin(x)/x correction
• Sharp transition to 60 dB
• 50 Ω
Typical Performance
Effective Passband & Group Delay
Overall Response
(0.25 dB/div & 5 nsec/div)
(10 dB/div)
27 Nov 2002 10:18:52
27 Nov 2002 10:18:06
CH1
CH2
S21 /M
S21
LOG
DEL
.25 dB/
5 ns/
REF -4.25 dB
REF 55 ns
CH1
Cor
S21
LOG
10 dB/
REF 0 dB
Cor
Smo
Cor
START
. 100
000
MHz
STOP
Figure 1
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2002, KR Electronics, Inc.
50 . 000
000
MHz
START
. 100
000
MHz
STOP
200 . 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 2455
Specifications
Parameter
Specification
Filter type
Lowpass
End of Passband
45 MHz
Effective Passband Ripple
< 0.5 dB
Insertion Loss (at 100 KHz)
< 4 dB
Group Delay Ripple
Sin(x)/x Compensation
< 10 nsec
Yes
Sampling Frequency
105 MHz
Start of Stopband
60 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