TEW4974 [FILTRAN]
64 Kbit/s data In/Output Transformer; 64千位/秒的数据输入/输出变压器
| 型号： | TEW4974 |
| 厂家： | 
FILTRAN LTD |
| 描述： | 64 Kbit/s data In/Output Transformer |
| 文件： | 总1页 (文件大小：54K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
64 Kbit/s data
In/Output Transformer
TEW4974
SCOPE
Features:
•
TEW4974 is specifically designed
to meet the stringent BS6301
requirements for reinforced barrier
insulation.
TEW4974 and TEW4974-1 are
designed to operate in the 64 kbit
mode of the CCITT
recommendation G703 for
Hierarchical Digital Interfaces.
•
•
TEW4974 is fully encapsulated in
epoxy to ensure 4000V dielectric
strength.
Applications:
Codirectional Interface
Contradirectional Interface
TEW4974-1 has an electrostatic
shield for improved noise rejection.
MECHANICAL
6
Line Side
4
1
2
3
Device
1 : 2
TEW4974
1
6
2
Device
Line Side
WHITE
DOT
AT PIN 1
3
5
All dimensions
are in inches
4
1 : 2
TEW4974-1
ELECTRICAL SPECIFICATIONS
Line Impedance
TEW4974
120 Ω
1:2
TEW4974-1
120 Ω
Turns Ratio
(6 - 4):(1 - 3)
1:2
Winding Resistance
(1 - 3)
(6 - 4)
5.2 Ω nom.
3.1 Ω nom.
8.9 Ω nom.
2.8 Ω nom
Inductance @ 0.5V 3000 Hz
Leakage Inductance
(6 - 4)
(6 - 4)
> 16 mH
> 24 mH
< 50 µH
< 20 µH
Return Loss @ 0.5 V Application
Codirectional
para. 1.2.1.3
Co- & Contradirectional
para. 1.2.1.3 & 1.2.3.1.6
CCITT G.703
o
o
Temperature
Operating
Storage
0 to +50 C
0 to +50 C
o
o
- 40 to +70 C
- 40 to +70 C
Dielectric Strength
4000 Vrms
1500 Vrms
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3,
Tel : (613) 226-1626 Fax : (613) 226-7124
5-4
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