參數(shù)資料
型號(hào): MB582A
廠商: Fujitsu Limited
英文描述: 155-Mbps ATM Transceiver(155Mbps 異步傳輸模式 收發(fā)器)
中文描述: 155 - Mbps的自動(dòng)柜員機(jī)收發(fā)器(155Mbps異步傳輸模式收發(fā)器)
文件頁數(shù): 43/46頁
文件大?。?/td> 345K
代理商: MB582A
43
MB582A/583A
(4) Serial data signals are transmitted at a high speed of 155.52 Mbps. Pay attention to the following points:
4-1. Connect a serial data terminal resistor of 82
to the V
CC
and of 130
to the GND. Connect these terminal
resistors closer to the receiving device side. (Placing a terminal resistor far away from the receiving device
causes signal reflection, resulting in degradation of serial data.)
4-2. The serial data transmission line must have 50
impedance. (Inappropriate line impedance causes signal
reflection, resulting in degradation of serial data.)
4-3. Do not bend the serial data transmission line with 90
°
. Also, do not pass it through a through hole. (The
through hole causes an impedance mismatch.)
4-4. The serial data transmission line should be minimum routed.
(5) Taking account of the above points, the board plane should be a four or more layers.
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