參數(shù)資料
型號: 21145
廠商: Intel Corp.
英文描述: Phoneline/Ethernet LAN Controller(電話線/以太網(wǎng)LAN控制器)
中文描述: 電話線/以太網(wǎng)控制器(電話線/以太網(wǎng)局域網(wǎng)控制器)
文件頁數(shù): 31/50頁
文件大小: 624K
代理商: 21145
21145
Preliminary
Datasheet
25
3.7
Twisted-Pair DC Specifications
Table 20
lists the DC specifications for the twisted-pair parts of the SIA.
3.8
Serial Interface Attachment Specifications
This section describes the dc specifications and timing limits of the SIA unit.
3.8.1
Internal SIA Mode 10BASE-T Interface Timing—Transmit
Figure 7
shows the internal SIA transmit timing characteristics for the 10BASE-T interface, and
Table 21
lists the internal SIA transmit limits.
Table 20. Twisted-Pair DC Specifications
Symbol
Definition
Condition
Minimum
Typical
1
1. At 3.3 V.
Maximum
Unit
V
toh
Output high voltage
(tp_td± and tp_td±±)
I
oh
= –25 mA
2.5
V
V
tol
Output low voltage
(tp_td± and tp_td±±)
I
ol
= 25 mA
0.5
V
V
tsq
+
Differential positive
squelch threshold
(tp_rd±)
300—520
mV
V
tsq
Differential negative
squelch threshold
(tp_rd±)
–520 — –300
mV
V
tdif
Differential input voltage
range (tp_rd±)
–3.1 — 3.1
V
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