This is the PDF file of catalog No.P05E-9.
*CERAFIL
®
is the Registered Trademark
of Murata Manufacturing Co., Ltd.
No.P05E9.pdf 00.7.20
CERAFIL
®
Ceramic Filter for Communications Equipment
CF-455
Series
-
High Performance Ceramic Filters
for Various Types of Radio Equipment
CF- series ceramic filters are high-performance filters, which
consist of piezoelectric elements connected in a ladder form.
They can be widely used as intermediate-frequency filters in
various high-class receivers, SSB communications equipment,
mobile radio set.
!FEATURES
1. High selectivity.
2. Stable operation in a wide temperature range.
3. Variety of bandwidths available to suit your needs.
4. Operating temperature range :
Y20
to
W80D
Storage temperature range :
Y40
to
W85D
CFS455-
CFR455-
CFM455-
CFK455-
CFL455-
CFX455-
CFG455-
CFJ455K-
CFS455-
CFR455-
CFM455-
CFK455-
CFL455-
CFX455-
CFG455-
CFJ455K-
High selectivity type filter using 15 ceramic elements.
11 ceramic elements used. The characteristic standard of this filter located between CFS455- and CFM455-.
Economic ceramic filter using 9 ceramic elements.
Miniature but having characteristics equivalent to CFS455-. Most suitable for portable radios which are required to be
miniaturized.
Another miniature type. Characteristics are equivalent to CFR455- and the size is the same as CFK455-. Enables
immediate improvement of characteristics.
One of the smallest of our ceramic filters. It is provided with characteristics equivalent to CFL455-. Perfect for portable
radios and particularly, pagers.
The other of our smallest filters. Characteristics equivalent to CFM455-. Perfect for receivers and radio equipment which
require particular miniaturization.
Most suitable type for SSB communications for which narrow bands are particularly needed.
25
This is the PDF file of catalog No.P05E-9.
No.P05E9.pdf 00.7.20
!SPECIFICATIONS
¡CFS455-
Characteristics
Part Number
CFS455A
CFS455B
CFS455C
CFS455D
CFS455E
CFS455E10
CFS455F
CFS455G
CFS455H
CFS455I
CFS455J
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
Spurious
Attenuation
80dB
Bandwidth 455T100kHz 0.1Y1MHz
(dB) min.
(dB) min.
(kHz) max.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
455
455
T13
T10
T09
T07
T05.5
T05
T04.2
Y
Y
Y
Y
T17.5
T15
T13
T10
T08
T07.5
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
3
T30
T25
T23
T20
T15
T12.5
T12
T09
T07.5
T05
T04.5
70
70
70
70
70
70
70
70
70
70
60
50
50
50
50
50
50
50
50
50
50
50
4
4
4
4
6
6
6
6
7
8
8
1500
1500
1500
1500
1500
1500
2000
2000
2000
2000
2000
¡CFR455-
Characteristics
Part Number
CFR455A
CFR455B
CFR455C
CFR455D
CFR455E
CFR455F
CFR455G
CFR455H
CFR455I
CFR455J
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
70dB
Attenuation
Spurious
Bandwidth 455T100kHz 0.1Y1MHz
(kHz) max.
(dB) min.
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
455
T13
T10
T09
T07
T05.5
T04.2
Y
Y
Y
Y
T17.5
T15
T13
T10
T08
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T30
T25
T23
T20
T16
T12
T10
T7.5
T05
T04.5
60
60
60
60
55
55
55
55
55
55
40
40
40
40
40
40
40
40
40
40
4
4
4
4
6
6
6
7
8
8
1000
1000
1000
1500
1500
2000
2000
2000
2000
2000
¡CFM455-
Characteristics
Part Number
CFM455A
CFM455B
CFM455C
CFM455D
CFM455E
CFM455F
CFM455G
CFM455H
CFM455I
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
60dB
Attenuation
Spurious
Bandwidth 455T100kHz 0.1Y1MHz
(kHz) max.
(dB) min.
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
T13
T10
T09
T07
T05.5
T04.2
Y
Y
Y
T17.5
T15
T13
T10
T8
T6
T4
T3
T2
3
3
3
3
3
3
3
3
3
T30
T25
T23
T20
T16
T12
T10
T07.5
T05
50
50
50
50
45
45
45
45
45
30
30
30
30
30
30
30
30
30
3
3
3
3
5
6
6
6
7
1000
1000
1000
1500
1500
2000
2000
2000
2000
¡CFK455-
Characteristics
Part Number
CFK455B
CFK455C
CFK455D
CFK455E
CFK455E10
CFK455F
CFK455G
CFK455H
CFK455I
CFK455J
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
70dB
Attenuation
Spurious
Bandwidth 455T100kHz 0.1Y1MHz
(kHz) max.
(dB) min.
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
Y
T15
T13
T10
T08
T07.5
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
T04.5
80
80
80
80
80
80
80
80
70
70
50
50
50
50
50
50
50
50
50
50
4
4
4
6
6
6
6
7
8
8
1000
1000
1500
1500
1500
2000
2000
2000
2000
2000
26
This is the PDF file of catalog No.P05E-9.
No.P05E9.pdf 00.7.20
¡CFL455-
Characteristics
Part Number
CFL455B
CFL455C
CFL455D
CFL455E
CFL455E10
CFL455F
CFL455G
CFL455H
CFL455I
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
70dB
Attenuation
Spurious
Bandwidth 455T100kHz 0.1Y1MHz
(kHz) max.
(dB) min.
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
T15
T13
T10
T08
T07
T06
T04
T03
T02
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
60
60
60
60
60
60
60
60
60
40
40
40
40
40
40
40
40
40
4
4
4
6
6
6
6
7
8
1000
1000
1500
1500
1500
1500
1500
1500
2000
¡CFX455-
Characteristics
Part Number
CFX455B
CFX455C
CFX455D
CFX455E
CFX455E10
CFX455F
CFX455G
CFX455H
CFX455I
CFX455J
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
70dB
Attenuation
Spurious
Bandwidth 455T100kHz 0.1Y1MHz
(kHz) max.
(dB) min.
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
Y
T15
T13
T10
T08
T07.5
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
T04.5
70
70
70
70
70
70
70
70
70
70
40
40
40
40
40
50
50
50
50
50
4
4
4
6
6
6
6
7
8
8
1000
1000
1500
1500
1500
1500
1500
1500
2000
2000
¡CFG455-
Characteristics
Part Number
CFG455B
CFG455C
CFG455D
CFG455E
CFG455E10
CFG455F
CFG455G
CFG455H
CFG455I
CFG455J
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
Spurious
Attenuation
60dB
Bandwidth 455T100kHz 0.1Y1MHz
(dB) min.
(dB) min.
(kHz) max.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
455
455
455
455
455
455
455
455
455
T10
T09
T07
T05.5
T05.0
T04.2
Y
Y
Y
Y
T15
T13
T10
T08
T07.0
T06
T04
T03
T02
T01.5
3
3
3
3
3
3
3
3
3
3
T25
T23
T20
T16
T12.5
T12
T10
T07.5
T05
T04.5
50
50
50
50
50
50
50
50
50
50
25
25
25
25
25
25
25
25
25
25
4
4
4
6
6
6
6
6
6
8
1000
1000
1500
1500
1500
1500
1500
1500
2000
2000
¡CFJ455K-
Characteristics
Part Number
CFJ455K5
Nominal
Center
Frequency
(kHz)
3dB
Bandwidth
(kHz) min.
6dB
Bandwidth
(kHz) min.
Ripple
(dB) max.
60dB
Attenuation
Spurious
Bandwidth 455T100kHz 0.1Y1MHz
(kHz) max.
(dB) min.
(dB) min.
Insertion
Loss
(dB) max.
Input/Output
Impedance
(Ω)
455
Y
Y
Y
2.4 (Total)
T1.1Y
T1.3
1.0 (Total)
2
4.5 (Total)
Y
Y
60
(
(
CFJ455K14
CFJ455K8
1.
2.
3.
.
455
455
2
1.5
4.5 (Total)
3.0 (Total)
60
40 at 600
Y700kHz
60
40 at 600
Y750kHz
Y
)
)
6
2000
7
8
2000
2000
Operating temperature range is
Y20D
to
W80D.
Aging variation of frequency is within 0.4% over 10 years.
Ripple definition range is within the 3 dB bandwidth mentioned in the standards list whenever the 3 dB bandwidth standard is provided.
It is within a 6 dB bandwidth mentioned in the standards list whenever 3 dB bandwidth is not provided.
27
This is the PDF file of catalog No.P05E-9.
No.P05E9.pdf 00.7.20
!TEST
CIRCUIT
¡Measuring
Circuit Diagram of the CF-455- Series
R
1
CF-455
q
e
w
r
Rg
S.S.G.
R
2
R.F.Voltmeter
R
1
WRg=R
2
= Impedance in Standards List
!EXAMPLES
OF CHARACTERISTICS
¡Frequency
Characteristics of the CFK455- Series
0
10
20
30
Attenuation (dB)
40
50
60
70
80
90
100
415 425 435 445 455 465 475 485 495
Frequency (kHz)
CFK455B
CFK455D
CFK455E
CFK455F
CFK455H
¡Frequency
Characteristics Comparison of the CF-455E Series
0
10
20
30
Attenuation (dB)
40
50
60
70
80
90
CFS455E
CFK455E
CFR455E
CFL455E
CFM455E
CFG455E
100
415 425 435 445 455 465 475 485 495
Frequency (kHz)
¡Frequency
Characteristics of CFJ455K5
0
10
20
30
Attenuation (dB)
40
50
60
70
80
90
100
450 452.5 455 457.5 460
Frequency (kHz)
¡Spurious
Response of CFS455E
0
20
Attenuation (dB)
40
60
80
100
0
1
2
3
4
5
6
Frequency (MHz)
7
8
9
10
29