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| 型号： | RFCMF1220100M4T |
| 厂商： | WALSIN TECHNOLOGY CORP |
| 元件分类： | 数据传输滤波器 |
| 中文描述： | 2 FUNCTIONS, 0.2 A, DATA LINE FILTER |
| 封装： | MINIATURE, SMD, 4 PIN |
| 文件页数： | 1/1页 |
| 文件大小： | 131K |
| 代理商： | RFCMF1220100M4T |
Walsin Technology Corporation
Introduction of RFCMF1220100M4T
June. 2006
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On USB 2.0/ IEEE 1394 interface, the frequency and strength of the
noise have to be suppressed, a part called Common Mode Choke be
chosen to provide the required noise attenuation, however, the higher
impedance Common Mode Choke generally have a greater damaging
effect and distortion on full speed and high speed signal quality.
The
Common Mode Filter designed and maunfactured at Walsin
Technology Corporation provide excellent noise suppression
characteristics thank to high common mode impedance while with
minimizing insertion loss to maintain the signal quality on the
transmission line. Especially, most effective on meeting the EMI
regulation of high speed USB 2.0 and IEEE 1394 interface circuit.
FEATURES
Miniature footprint: 1.2 x 2.0 x 1.0 mm3.
Low Differential Mode Insertion Loss maximum 1.0dB @
240MHz
High Common Mode attenuation minimum 9.0dB @ 130MHz ~
1.0GHz
Special 3D layout design to minimize phase shifting
Reflow solderable SMD Devices
ELECTRICAL CHARACTERISTICS
Item
Specification
Common Mode Attenuation
Min. 9.0dB @ 130 MHz ~ 1GHz
Differential Mode Insertion Loss
Max. 1 dB @ 240MHz
DC Resistance
Max. 2.5
Rated Current
200 mA
Characteristic Impedance
90
Operating Temperature
- 40 °C ~ +85 °C
APPLICATIONS
USB 2.0/ IEEE 1394 high speed data transmission
PC Related, DSC, Scanner, Data Storage, CD ROM W/R,
Printer
DIMENSION
Figure
Symbol
Dimension
L
1.20 ± 0.20 mm
W
2.00 ± 0.20 mm
T
1.00 ± 0.20 mm
P
0.80 ± 0.10 mm
a
0.45 ± 0.20 mm
b
0.40 ± 0.20 mm
CONSTRUCTION and SCHEMATIC
Outline and Schematic of USB 2.0/ IEEE 1394 Common Mode Filter
ELECTRICAL PERFORMANCE
0
0.24
0.48
0.72
0.96
1.2
Frequency (GHz)
-50
-40
-30
-20
-10
0
dB
Common Mode Attenuation
Differential Mode Loss
APPLICATION CIRCUIT
(1). USB 2.0
(2). IEEE 1394
CONTACT INFORMATION
For more information, please contact with Walsin Technology
Corporation
Tel
: 886-3-475-8711
Fax No.
: 886-3-475-5197
E mail
: info@passivecomponent.com
Web
: http://www.passivecomponent.com
Specification subject to change without prior notice.
Patent Pending
L
W
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