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参数资料
| 型号： | TR857FA-0D50M |
| 英文描述： | Optoelectronic |
| 中文描述： | 光电 |
| 文件页数： | 4/19页 |
| 文件大小： | 201K |
| 代理商： | TR857FA-0D50M |
4
Figure 2. Example SFP Host Board Shematics
In order to prevent unwanted reflections between system and transceiver, it is necessary to
have both a 50
impedance matched transmission line as well as a 50
termination load.
The system board differential pair transmission lines must be designed with the same length.
The transmitter internally includes a 100
differential termination for the two differential input
lines (TD+, TD-). Therefor, additional 50
terminations should not be externally connected to
the transmitter-input lines. The transmitter is disabled when the TX disable is TTL high and
enabled when TTL low. If this feature is not needed, it should be connected to system ground.
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