ALFY450G [TOKO]
Ceramic BPF, 0.45MHz, LEAD FREE PACKAGE-5;
| 型号： | ALFY450G |
| 厂家： | 
TOKO, INC |
| 描述： | Ceramic BPF, 0.45MHz, LEAD FREE PACKAGE-5 |
| 文件： | 总2页 (文件大小：200K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LFY/LFYM
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
LFY
Unit: mm
Applications
• AM radio cassettes, AM stereo sets
• Cordless telephones, pagers
• Two-way radios
LFYM
Unit: mm
STANDARD FILTERS SELECTION GUIDE
TYPE LFY/LFYM
TOKO
Part
Number
Center *
Frequency
(kHz)
Bandwidth
at 6 dB
(kHz)
Bandwidth
at 50 dB
(kHz)
Attenuation
fo ± 100 KHz
(dB)
Insertion
Loss
(dB)
Input/Output
Impedance
(kΩ)
LFY
ALFY455H
ALFY455G
ALFY455F
ALFY455E
BLFY455D
BLFY455C
BLFY455B
LFYM
455±1.0
455±1.0
455±1.0
455±1.0
455±2.0
455±2.0
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.
35.0 max.
35.0 max.
35.0 max.
35.0 max.
35.0 max.
35.0 max.
35.0 max.
6.0 max.
6.0 max.
6.0 max.
6.0 max.
4.0 max.
4.0 max.
4.0 max.
2.0
2.0
2.0
1.5
1.5
1.5
1.5
ALFYM455H
ALFYM455G
ALFYM455F
ALFYM455E
BLFYM455D
BLFYM455C
BLFYM455B
455±1.0
455±1.0
455±1.0
455±1.0
455±2.0
455±2.0
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.
35.0 max
35.0 max
35.0 max
35.0 max
35.0 max
35.0 max
35.0 max
6.0 max.
6.0 max.
6.0 max.
6.0 max.
4.0 max.
4.0 max.
4.0 max.
2.0
2.0
2.0
1.5
1.5
1.5
1.5
* For 450kHz, substitute 450 for 455 in part number.
August 2005
1
CF-318-LFY/M
R-LOG0805A
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
LFY/LFYM
AM CERAMIC FILTERS
Frequency Response
LFY / LFYM (6 element)
0
20
40
60
80
E
H
C
Bandwidth
Rank:
100
C = ±12.5kHz
E = ±7.5kHz
H = ±3kHz
415 425 435
455 465 475 485 495
445
Frequency (kHz)
Test Circuit
R1
LFY
Test circuit
5
Test Conditions
50Ω
SG.
Rg
1 2
3 4
E.V.
R2
E2
1. C includes test circuit capacitance.
2. R1, R2: Input-output impedance
Cs: Stray capacitance
E1
(less than 50pF, including EV)
Z = Rg + R1 =R2
1
2
LFYM
Test circuit
R1
4
3
5
50Ω
Rg
E.V.
R2
E2
E1
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
© 2005 TOKO America, Inc.
All Rights Reserved
Printed in USA
2
CF-318-LFY/M
R-LOG0805A
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