參數(shù)資料
型號: LQ80221
英文描述: LAN Transceiver
中文描述: 網(wǎng)絡(luò)收發(fā)器
文件頁數(shù): 63/91頁
文件大小: 907K
代理商: LQ80221
80220/80221
4-63
MD400159/E
RECEIVE TIMING CHARACTERISTICS
Refer to Figures 19-23 for Timing Diagrams
LIMIT
TYP
SYM
t
31
PARAMETER
Start Of Packet To CRS
Assert Delay
MIN
MAX
200
200
700
240
240
600
UNIT
nS
nS
nS
nS
nS
nS
CONDITIONS
100 Mbps, MII
100 Mbps, FBI
10 Mbps
100 Mbps, MII
100 Mbps, FBI
10 Mbps.
Relative To Start Of SOI Pulse
100 Mbps
10 Mbps
100 Mbps
10 Mbps.
Relative To Start Of SOI Pulse
100 Mbps
10 Mbps
100 Mbps
10 Mbps
100 Mbps
10 Mbps
10 Mbps
Measure TPI
±
from last zero cross
to 0.3V point.
100 Mbps
10 Mbps
PLEDn Programmed for Activity
PLEDn Programmed for Activity
t
32
End Of Packet To CRS
Deassert Delay
130
t
33
Start Of Packet To
RX_DV Assert Delay
End Of Packet To
RX_DV Deassert Delay
240
3600
280
1000
nS
nS
nS
nS
t
34
t
37
RX_CLK To RX_DV,
RXD, RX_ER Delay
RX_CLK High Time
-8
-80
18
180
18
180
125
8
nS
nS
nS
nS
nS
nS
nS
80
22
600
22
600
200
t
38
20
200
20
200
t
39
RX_CLK Low Time
t
40
SOI Pulse Minimum
Width Required for Idle
Detection
Receive Input Jitter
t
41
±
3.0
±
13.5
25
105
10
nS pk - pk
nS pk -pk
mS
mS
nS
t
43
t
44
t
45
PLEDn Delay Time
PLEDn Pulse Width
RX_CLK, RXD, CRC,
RX_DV, RX_ER Output
Rise and Fall Times
RX_EN Deassert to Rcv
MII Output HI-Z Delay
RX_EN Assert to Rcv
MII Output Active Delay
80
t
46
40
nS
t
47
40
nS
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