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CFULA455KB2A-B0 View Datasheet(PDF) - Murata Manufacturing

Part Name
Description
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CFULA455KB2A-B0 Datasheet PDF : 16 Pages
First Prev 11 12 13 14 15 16
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Ceramic Filters (CERAFILr)/Ceramic Discriminators for Communications Equipment
CERAFILr Plastic Case Group Delay Flat Type CFWLA_Y Series
CFWLA_Y series are high selectivity ceramic filters,
which consist of 6 ceramic elements connected in a
ladder form.
Most suitable for digital communications and mobile
telephones because of their improved GDT
characteristics.
s Features
1. High selectivity.
2. A variety of bandwidths are available.
3. Excellent GDT characteristics are available within
pass bandwidth.
4. Easily mounted on a printed circuit board
5. Operating temperature range : -20 to +80 (degree C)
Storage temperature range : -40 to +85 (degree C)
11.0±0.5
MARKING
EIAJ
CODE
0.8±0.1
Connection
(1) : Input
0.15
2.9±0.3
2.9—±00.3.3
}(2)
(3) : Ground
(4)
2.6±0.3 0.6±0.1
(5) : Output
1.2±0.5
Type
(in mm)
Marking
(4) (3) (2) (1)
CFWLA455KB4Y-B0 BY
CFWLA455KC4Y-B0 CY
(5)
CFWLA455KD1Y-B0 DY
CFWLA455KE1Y-B0 EY
CFWLA455KF1Y-B0 FY
2.3±0.3
2.0±0.3
CFWLA455KG1Y-B0 GY
Part Number
CFWLA455KB4Y-B0
Center
Frequency (fo)
(kHz)
455.0
±1.5kHz
6dB
Stop
Bandwidth Bandwidth
(kHz)
(kHz)
Stop Band
Attenuation
(dB)
fn±15.0 fn±35.0 max.
40 min.
min. [within 50dB] [within fn±100kHz]
Insertion
Loss
(dB)
GDT Deviation
(µs)
6.0 max.
30.0 max.
[at minimum loss point] [within fn±10kHz]
Input/Output
Impedance
(ohm)
1500
CFWLA455KC4Y-B0
455.0
±1.5kHz
fn±12.5 fn±30.0 max.
40 min.
7.0 max.
30.0 max.
min. [within 50dB] [within fn±100kHz] [at minimum loss point] [within fn±8kHz]
1500
CFWLA455KD1Y-B0
455.0
±1.0kHz
fn±10.0 fn±25.0 max.
40 min.
8.0 max.
30.0 max.
min. [within 50dB] [within fn±100kHz] [at minimum loss point] [within fn±7kHz]
1500
CFWLA455KE1Y-B0
455.0
±1.0kHz
fn±7.5
min.
fn±20.0 max.
40 min.
9.0 max.
30.0 max.
[within 50dB] [within fn±100kHz] [at minimum loss point] [within fn±5kHz]
1500
CFWLA455KF1Y-B0
455.0
±1.0kHz
fn±6.0
min.
fn±17.5 max.
40 min.
10.0 max.
40.0 max.
[within 50dB] [within fn±100kHz] [at minimum loss point] [within fn±4kHz]
2000
CFWLA455KG1Y-B0
455.0
±1.0kHz
fn±4.5
min.
fn±15.0 max.
40 min.
11.0 max.
40.0 max.
[within 50dB] [within fn±100kHz] [at minimum loss point] [within fn±3kHz]
2000
For safety purposes, connect the output of filters to the IF amplifier through a D.C. blocking capacitor. Avoid applying a direct current to the output of ceramic filters.
(fn) means nominal center frequency 455kHz.
The order quantity should be an integral multiple of the "Minimum Quantity" shown in package page in this catalog.
s Test Circuit
Rg
S.S.G.
0dBm
(5)
R1
(1) (2) (3) (4)
R2
E2
E1
RF Voltmeter
Connection
(1) : Input
(5) : Output
(2)(3)(4) : Ground
Rg+R1=R2=Input/Output Impedance
15
41
 

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