參數(shù)資料
型號(hào): AM79C989JCT
廠商: ADVANCED MICRO DEVICES INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: Quad Ethernet Switching Transceiver (QuEST⑩)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 36/37頁
文件大小: 198K
代理商: AM79C989JCT
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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