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NET2890 数据表(PDF) 66 Page - List of Unclassifed Manufacturers

部件名 NET2890
功能描述  USB Interface Controller
PDF  73 Pages
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制造商  ETC [List of Unclassifed Manufacturers]
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标志 ETC - List of Unclassifed Manufacturers

NET2890 数据表(HTML) 66 Page - List of Unclassifed Manufacturers

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Specification
NET2890 USB Interface Controller
____________________________________________________________________________________
NetChip Technology, Inc., 1999
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 2.0, Draft 9, July 16, 1999
66
7.4 AC Specifications
7.4.1 USB Port AC Specifications
Operating Conditions: VDD: 3.3V ± 5%, TA = 0°C to 70°C
All typical values are at VDD = 3.3V and TA = 25°C
Operating Conditions: Notes 1,2,3.
Symbol
Parameter
Conditions
Waveform
Min
Typ
Max
Unit
TR
Rise & Fall Times
CL = 50 pF
Figure 8-1
4
20
ns
TF
Notes 4,5
4
20
TRFM
Rise/Fall time matching
(TR/ TF)
Figure 8-1
90
110
%
VCRS
Output Signal Crossover Voltage
1.3
2.0
V
ZDRV
Driver Output Resistance
Steady State Drive
10
15
Ω
TDRATE
Data Rate
11.97
12
12.03
Mbs
TDDJ1
Source Differential Driver Jitter to
Next Transition
Notes 6,7
Figure 8-2
-3.5
0
3.5
ns
TDDJ2
Source Differential Driver Jitter
for Paired Transitions
Notes 6,7
Figure 8-2
-4.0
0
4.0
ns
TDEOP
Differential to EOP Transition
Skew
Note 7
Figure 8-3
-2
0
5
ns
TEOPT
Source EOP Width
Note 7
Figure 8-3
160
167
175
ns
TJR1
Receiver Data Jitter Tolerance to
Next Transition
Note 7
Figure 8-4
-18.5
0
18.5
ns
TJR2
Receiver Data Jitter Tolerance for
Paired Transitions
Note 7
Figure 8-4
-9
0
9
ns
TEOPR1
EOP Width at Receiver; Must
reject as EOP
Note 7
Figure 8-3
40
ns
TEOPR2
EOP Width at Receiver; Must
accept as EOP
Note 7
Figure 8-3
80
ns



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