參數(shù)資料
型號: LXT972A
廠商: Intel Corp.
英文描述: 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet
中文描述: 3.3雙速快速以太網(wǎng)收發(fā)器數(shù)據(jù)表
文件頁數(shù): 50/70頁
文件大?。?/td> 833K
代理商: LXT972A
LXT972A
3.3V Dual-Speed Fast Ethernet Transceiver Datasheet
50
Datasheet
Figure 27. 10BASE-T Transmit Timing
Table 28. 10BASE-T Transmit Timing Parameters
Parameter
Sym
Min
Typ
1
Max
Units
2
Test Conditions
TXD, TX_EN, TX_ER setup to TX_CLK High
t1
10
ns
TXD, TX_EN, TX_ER hold from TX_CLK High
t2
0
ns
TX_EN sampled to CRS asserted
t3
2
BT
TX_EN sampled to CRS de-asserted
t4
1
BT
TX_EN sampled to TPO out (Tx latency)
t5
72.5
BT
1. Typical values are at 25
°
C and are for design aid only; not guaranteed and not subject to production testing.
2. BT is the duration of one bit as transferred to and from the MAC and is the reciprocal of the bit rate. 10BASE-T bit time = 10
-
s or 100 ns.
TX_CLK
TXD,
TX_EN,
TX_ER
CRS
TPO
t
1
t
3
t
4
t
5
t
2
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