CFULA455KB2A-B0 Ver la hoja de datos (PDF) - Murata Manufacturing

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CFULA455KB2A-B0

Ceramic Filters (CERAFIL®)/Ceramic Discriminators for Communications Equipment

Murata Manufacturing 

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Ceramic Filters (CERAFILr)/Ceramic Discriminators for Communications Equipment

CERAFILr Plastic Case General Use CFULA_A Series

CFULA_A series are high selectivity ceramic filters,

which consist of 4 ceramic elements connected in a

ladder form.

Most suitable for digital communications and cellular

phones because of their improved GDT characteristics.

s Features

1. High selectivity.

2. A variety of bandwidth 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)

8.0±0.3

MARKING

EIAJ

CODE

0.15±0.05

2.7±0.3

1.2±0.5

(2) (1)

(3)

3.3±0.5

0.8±0.1

Connection

(1) : Input

(2) : Ground

(3) : Output

0.6±0.1

(in mm)

Type

Marking

CFULA455KB2A-B0

B

CFULA455KC2A-B0

C

CFULA455KD4A-B0

D

CFULA455KE4A-B0

E

CFULA455KF4A-B0

F

CFULA455KG1A-B0

G

CFULA455KH1A-B0 HT

Part Number

CFULA455KB2A-B0

Center

Frequency (fo)

(kHz)

455.0

±2.0kHz

6dB

Bandwidth

(kHz)

fn±15.0

min.

Stop

Bandwidth

(kHz)

fn±30.0 max.

[within 40dB]

Stop Band

Attenuation

(dB)

27 min.

[within fn±100kHz]

Insertion

Loss

(dB)

4.0 max.

[at minimum loss point]

Input/Output

Impedance

(ohm)

1500

CFULA455KC2A-B0

455.0

±2.0kHz

fn±12.5

min.

fn±24.0 max.

[within 40dB]

27 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

1500

CFULA455KD4A-B0

455.0

±1.5kHz

fn±10.0

min.

fn±20.0 max.

[within 40dB]

27 min.

[within fn±100kHz]

4.0 max.

[at minimum loss point]

1500

CFULA455KE4A-B0

455.0

±1.5kHz

fn±7.5

min.

fn±15.0 max.

[within 40dB]

27 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

1500

CFULA455KF4A-B0

455.0

±1.5kHz

fn±6.0

min.

fn±12.5 max.

[within 40dB]

27 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2000

CFULA455KG1A-B0

455.0

±1.0kHz

fn±4.5

min.

fn±10.0 max.

[within 40dB]

25 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

2000

CFULA455KH1A-B0

455.0

±1.0kHz

fn±3.0

min.

fn±9.0 max.

[within 40dB]

35 min.

[within fn±100kHz]

6.0 max.

[at minimum loss point]

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.

10

s Test Circuit

(3)

R1

(1) (2)

Rg

E1

S.S.G.

0dBm

R2

E2

Rg+R1=R2=Input/Output Impedance

RF Voltmeter

Connection

(1) : Input

(2) : Ground

(3) : Output

31

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