ALFCM450H [TOKO]

Ceramic BPF, 0.45MHz, LEAD FREE PACKAGE-4;


型号：	ALFCM450H
厂家：	TOKO, INC
描述：	Ceramic BPF, 0.45MHz, LEAD FREE PACKAGE-4
文件：	总2页 (文件大小：178K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LFC/LFCM

AM CERAMIC FILTERS

Description

Dimensions

• AM Ceramic ﬁlters are connected in a ladder structure

and are available as either 4/6 element devices

• Bandwidths from 6 to 30 kHz

Features

• 450, 455 kHz, (460kHz and 486kHz by special request)

• High selectivity

• Compact package

• Version with group delay variations speciﬁed also available

• Lead-free terminations

LFC

Unit: mm

Applications

• AM radio cassettes, AM stereo sets

• Cordless telephones, pagers

• Two-way radios

LFCM

Unit: mm

STANDARD FILTERS SELECTION GUIDE

TYPE LFC/LFCM

TOKO

Part

Number

Center *

Frequency

(kHz)

Bandwidth

at 6 dB

(kHz)

Bandwidth

at 40 dB

(kHz)

Attenuation

fo ± 100 KHz

(dB)

Insertion

Loss

(dB)

Input/Output

Impedance

(kΩ)

LFC

ALFC455H

ALFC455G

ALFC455F

ALFC455E

BLFC455D

BLFC455C

BLFC455B

LFCM

455±1.0

455±2.0

±3.0 min.

±4.5 min.

±6.0 min.

±7.5 min.

±10.0 min.

±12.5 min.

±15.0 min.

±9.0 min.

±10.0 min.

±12.5 min.

±15.0 min.

±20.0 min.

±24.0 min.

±30.0 min.

25.0 max.

27.0 max.

6.0 max.

4.0 max.

2.0

1.5

ALFCM455H

ALFCM455G

ALFCM455F

ALFCM455E

BLFCM455D

BLFCM455C

BLFCM455B

455±1.0

455±2.0

±3.0 min.

±4.5 min.

±6.0 min.

±7.5 min.

±10.0 min.

±12.5 min.

±15.0 min.

±9.0 min.

±10.0 min.

±12.5 min.

±15.0 min.

±20.0 min.

±24.0 min.

±30.0 min.

25.0 max

27.0 max

6.0 max.

4.0 max.

2.0

1.5

* For 450kHz, substitute 450 for 455 in part number.

August 2005

CF-317-LFC/M

R-LOG0805A

Printed in USA

LFC/LFCM

AM CERAMIC FILTERS

Frequency Response

LFC / LFCM (4 element)

Bandwidth

Rank:

100

C = ±12.5kHz

E = ±7.5kHz

H = ±3kHz

415 425 435

455 465 475 485 495

445

Frequency (kHz)

Test Circuit

LFC

Test circuit

Test Conditions

50Ω

SG.

E.V.

1. C includes test circuit capacitance.

2. R1, R2: Input-output impedance

Cs: Stray capacitance

(less than 50pF, including EV)

Z = Rg + R1 =R2

LFCM

Test circuit

50Ω

E.V.

SG.

Z = Rg + R1 =R2

The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, speciﬁcation or manufacture

of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or

other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.

TOKO America, Inc.

1250 Feehanville Drive, Mount Prospect, Illinois 60056

Tel: (847) 297-0070 Fax: (847) 699-7864 Web: http://www.tokoam.com

August 2005

Printed in USA

CF-317-LFC/M

R-LOG0805A

相关型号：