KR Electronics, Inc.
KR Electronics
General Description
KR 2912 is a 45 MHz lowpass filter. The filter is group delay
equalized for linear phase and amplitude equalized. Other pass-
band frequencies are available. Please consult the factory.
www.krfilters.com
Features
45 MHz Cuttoff Frequency
Sharp Elliptic Type Response
Group Delay Equalized for Linear
Phase
Surface Mount Package
50
Source and Load
Typical Performance
Passband Amplitude & Group Delay
(0.2 dB/div and 10 nsec/div)
18 Apr 2009 10:54:56
CH2
CH4
S31
S31
LOG
DEL
.2 dB/
10 ns/
REF -.6 dB
REF 30 ns
CH1
S31
LOG
5 dB/
Overall Response
(5 dB/div)
18 Apr 2009 10:57:00
REF 0 dB
2
Smo
Cor
Smo
4
Cor
START
. 100
000
MHz
STOP
45 . 000
000
MHz
START
1 . 000
000
MHz
STOP
3 000 . 000
000
MHz
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2009, KR Electronics, Inc.
2912, 45 MHz Lowpass, Rev 0, April 18, 2009
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 1
KR Electronics, Inc.
KR Electronics 2912
Specifications
Parameter
Filter type
End of Passband (<0.2 dB)
Attenuation at 50 MHz
Phase Linearity to 45 MHz
Source and Load
Specification
Lowpass
45 MHz
> 11 dB
±5.3° max (±2° typical)
50
www.krfilters.com
Physical Dimensions
Notes:
1. Surface mount package — Metal cover open frame
2. Dimensions in inches
3. Maximum reflow temperature is 209° C for 10 sec maximum.
4. If boards are cleaned after installation, units must be completely dried.
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2009, KR Electronics, Inc.
2912, 45 MHz Lowpass, Rev 0, April 18, 2009
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 2
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