參數(shù)資料
型號: AM79C989
廠商: Advanced Micro Devices, Inc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Motor Driver IC; Supply Voltage Max:13.2V; Output Current Max:0.5A; Package/Case:8-SOIC; Driver Type:Motor; Leaded Process Compatible:No; Output Current:1.5A; Peak Reflow Compatible (260 C):No; Supply Voltage Min:3.8V
中文描述: 四路以太網(wǎng)交換器(QuEST的⑩)
文件頁數(shù): 36/37頁
文件大?。?/td> 198K
代理商: AM79C989
36
Am79C989
P R E L I M I N A R Y
10BASE-T Interface
Figure 6.
10BASE-T Interface Timing Diagram
Squelch
Post-Squelch Timeout
(RXD+) – (RXD– –)
VTSQ–, VLTSQ–
VTSQ+, VLTSQ+
VTHS+, VLTHS+
VTHS–, VLTHS–
40
41
41
(TXD+) – (TXD–)
VTPOV+
VTPOV–
42
21173B-10
No.
Symbol
Parameter Description
Min
Max
Unit
40
t
TP1
RXD Frequency Rejection.
15
MHz
41
t
TP2
RXD High/Low Frequency Time-out.
160
180
ns
42
t
TP2
TXD
±
End of Transmission Delimiter.
250
375
ns
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