參數(shù)資料
型號: LXT971A
廠商: Intel Corp.
英文描述: 3.3V Dual-Speed Fast Ethernet PHY Transceiver
中文描述: 3.3雙速快速以太網(wǎng)物理層收發(fā)器
文件頁數(shù): 67/90頁
文件大小: 568K
代理商: LXT971A
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
67
Figure 34. 10BASE-T Jabber and Unjabber Timing
Table 35. 10BASE-T Jabber and Unjabber Timing Parameters
Parameter
Symbol
Min
Typ
1
Max
Units
Test Conditions
Maximum transmit time
t1
20
150
ms
Unjab time
t2
250
750
ms
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
testing.
Figure 35. 10BASE-T SQE (Heartbeat) Timing
Table 36. 10BASE-T SQE Timing Parameters
Parameter
Symbol
Min
Typ
1
Max
Units
Test Conditions
COL (SQE) Delay after TX_EN off
t1
0.65
1.6
us
COL (SQE) Pulse duration
t2
0.5
1.5
us
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
testing.
TXD
COL
t
1
t
2
TX_EN
TX_CLK
TX_EN
t
1
t
2
COL
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