參數(shù)資料
型號: L84225
英文描述: L84225 100BaseTX/FX/10BaseT Physical Layer Device technical manual 4/02
中文描述: L84225 100BaseTX/FX/10BaseT物理層設(shè)備的技術(shù)手冊,4月2日
文件頁數(shù): 89/118頁
文件大?。?/td> 890K
代理商: L84225
Specifications
Copyright 1999-2002 by LSI Logic Corporation. All rights reserved.
89 of 118
April, 2002
5.3 Twisted Pair Characteristics, Transmit
Unless otherwise noted, all test conditions are as follows:
1.
T
A
= 0 to +70 C
V
DD
= 3.3 V 5%
25 MHz 0.01%
2.
3.
4.
REXT = 10K 1%,no load
5.
TPOP/N loading shown in
Figure 11
, or equivalent
Sym.
Parameter
Limit
Unit
Conditions
Min
Typ
Max
T
OV
TP Differential Output
Voltage
0.950
1.000
1.050
V pk
100 Mbps, UTP Mode, 100
Ohm load
100 Mbps, STP Mode, 150
Ohm load
10 Mbps, UTP Mode, 100 Ohm
load
10 Mbps, STP Mode, 150 Ohm
load
100 Mbps, ratio of positive and
negative amplitude peaks on
TPOP/N
100 Mbps
1.165
1.225
1.285
V pk
2.2
2.5
2.8
V pk
2.694
3.062
3.429
V pk
T
OVS
TP Differential Output
Voltage Symmetry
98
102
%
T
ORF
TP Differential Output
Rise And Fall Time
TP Differential Output
Rise And Fall Time
Symmetry
TP Differential Output
Duty Cycle Distortion
3.0
5.0
ns
T
ORFS
0.5
ns
100 Mbps, difference between
rise and fall times on TPOP/N
T
ODC
0.25
ns
100 Mbps, output data=0101...
NRZI Pattern Unscrambled,
measure at 50% Points
100 Mbps, Output Data=Scram-
bled /H/
100 Mbps
T
OJ
TP Differential Output
Jitter
TP Differential Output
Overshoot
TP Differential Output
Voltage Template
TP Differential Output
SOI Voltage Template
0.7
ns
T
OO
5.0
%
T
OVT
See
Figure 4
10 Mbps
T
SOI
See
Figure 6
10 Mbps
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