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CFWS455IT Schematic ( PDF Datasheet ) - Murata

Teilenummer CFWS455IT
Beschreibung High Selectivity Low Profile Type Ceramic Filter
Hersteller Murata
Logo Murata Logo 




Gesamt 1 Seiten
CFWS455IT Datasheet, Funktion
This is the PDF file of catalog No.P05E-9.
No.P05E9.pdf 00.7.20
CERAFIL®
*CERAFIL®is the Registered Trademark
of Murata Manufacturing Co., Ltd.
Ceramic Filter for Communications Equipment CFWS455 Series
Resin Molded, High Selectivity Low Profile Type
Ceramic Filter (6-Element)
Ceramic filter CFWS455- series are low profile high
selectivity ceramic filters which use 6 elements in ladder
form. They have the same electric characteristics as
CFW455- series, best suitable to high-class transceivers,
cordless telephones and amateur radios.
!FEATURES
1. Low profile, high selectivity.
2. Available bandwidths B to I as standard.
3. Easily mountable on an any PC boards.
4.Operating temperature range : Y20D to W80D
Storage temperature range : Y40D to W85D
!SPECIFICATIONS
Character-
istics
Part Number
Nominal Center
Frequency
(kHz)
6dB Bandwidth
(kHz)min.
CFWS455B
455
T15
CFWS455C
455
T12.5
CFWS455D
455
T10
CFWS455E
455
T07.5
CFWS455F
455
T06
CFWS455G
455
T04.5
CFWS455HT
455
T03
CFWS455IT
455
T02
Ripple
(dB)max.
3
3
3
3
3
2
2
2
50dB Bandwidth
(kHz)max.
Attenuation
455T100kHz
(dB)min.
T30 35
T24 35
T20 35
T15 35
T12.5
35
T10 35
T09 60
T07.5
60
Insertion Loss
(dB)max.
4
4
4
6
6
6
6
6
Input/Output
Impedance
()
1500
1500
1500
1500
2000
2000
2000
2000
!DIMENSIONS
!TEST CIRCUIT
!FREQUENCY CHARACTERISTICS
11.0T0.5
7.0T0.5
0.8T0.1
5-0.15T0.05
2.0 2.3T0.5
t
qw e r
2.0
0.6T0.1
1.2T0.5 2.6 2.9 2.9
Connection
q Input
wer Ground
t Output
5-1.0φ Hole
2.6 2.9 2.9
(Back Side of PCB)
Tol. without notice : T0.3
(in mm)
Rg
S.S.G.
CFWS455
t
R1 q w e r
R2
R.F.
Voltmeter
RgWR1=R2=Input/Output Impedance
Connection
q Input
wer Ground
t Output
CFWS455E
0
10
20
30
40
50
60
70
80
410 420 430 440 450 460 470 480 490 500
Frequency (kHz)
Note : To take best advantage of safety feature of ceramic filters, connect the output to an IF amplifier through a DC cut capacitor.
Avoid directly applying a direct current to output of ceramic filters (between 5 and 2,3,4).
33
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