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CFU455B2 Schematic ( PDF Datasheet ) - Murata Electronics

Teilenummer CFU455B2
Beschreibung FILTERS
Hersteller Murata Electronics
Logo Murata Electronics Logo 




Gesamt 1 Seiten
CFU455B2 Datasheet, Funktion
CERAMIC FILTERS
FOR AM APPLICATIONS–HIGHLY SELECTIVE
CFU SERIES
The CFU 455 line of ceramic filters
are 4-element devices connected in
ladder form while the CFWS 455 line
of ceramic filters contain 6-elements.
These compact, highly selective
filters are recommended for use in
applications ranging from two-way
radio to auxiliary filters in high class
transceivers. (Also available in
450kHz version.)
FEATURES
s High selectivity
s The pass bandwidths from 30kHz
to 4kHz are available.
s Easily mountable onto printed boards
s Operating temperature range:
–20°C to +80°C
Storage temperature range:
–40°C to +85°C
DIMENSIONS: mm
8.0 ± 0.5
7.0 ± 0.5
8.0 ± 0.5
0.8 ± 0.1
0.2
0.8 ± 0.3
Sealing
4.0 ± 0.5
0.6 ± 0.1
2.7 ± 0.3 0.8
2 1 4.3 ± 0.3
3
3-1.0D.
3.3 ± 0.5 1.2 ± 0.5
1.5 max.
2.7
21
3
CIRCUIT
R1
S.S.G.
Rg
13
2
R2
Rg+R1=R2=Input/Output Impedance
1=INPUT
2=GROUND
3=OUTPUT
CHARACTERISTICS
RF
Voltmeter
0 CFU
10 455B2
20 CFU
30 455E2
CFU
455H2
40
50
60
70
420 440 460 480 500
Frequency (kHz)
SPECIFICATIONS
Part Number
Nominal Center
Frequency (kHz)
6dB Bandwidth 40dB Bandwidth
(kHz) min.
(kHz) max.
Attenuation
455 ±100kHz
(dB) min.
Ripple
Insertion Loss
(dB) max. kHz (dB) max.
‚CFU455B2
455 ± 2
±15
±30
27 3 (455 ± 10) 4
‚CFU455C2
455 ± 2
±12.5
±24
27 4 (455 ± 8)
4
‚CFU455D2
455 ± 1.5
±10
±20
27 2 (455 ± 7)
4
‚CFU455E2
455 ± 1.5
±7.5
±15
27 1.5 (455 ± 5)
6
‚CFU455F2
455 ± 1.5
±6
±12.5
27 1.5 (455 ± 4)
6
‚CFU455G2
455 ± 1
±4.5
±10
25 1.5 (455 ± 3.0) 6
‚CFU455H2
455 ± 1
±3
±9
25
2 (455 ± 2.0)
6
‚CFU455I2
455 ± 1
±2
±7.5
25
2 (455 ± 1.5)
6
CFU455HT
455 ± 1
±3
±9
35 3 (455 ± 2)
6
CFU455IT
455 ± 1
±2
±7.5
35
2 (455 ± 1.5)
6
Note: For safety purposes, connect the output of filters to the IF amplifier through a DC blocking capacitor. Avoid applying a direct current to the output of ceramic filters.
PART NUMBERING SYSTEM
CFU 455kHz
Input/Output
Impedance ()
1500
1500
1500
1500
2000
2000
2000
2000
2000
2000
CFU 455 B
2
SERIES
FREQUENCY
in kHz
BANDWIDTH
DENOTES ANY
SPECIFIC CHARACTERISTICS
‚Available as standard through authorized Murata Electronics Distributors. ̆Applicable in North American market only. ̄Applicable in European market only.
For more detailed information regarding this product line in North America, see Catalog No. P-05-D. To receive additional information on Murata Products call 1-800 -831-9172.
For more detailed information regarding this product line in Europe, see Catalog No. P05E-8.
113





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