EGLXT973QEA3V-873181 Cortina Systems Inc, EGLXT973QEA3V-873181 Datasheet - Page 83
EGLXT973QEA3V-873181
Manufacturer Part Number
EGLXT973QEA3V-873181
Description
IC TXRX 2PORT ETH EXT 100-MQFP
Manufacturer
Cortina Systems Inc
Datasheet
1.EGLXT973QCA3V-873178.pdf
(97 pages)
Specifications of EGLXT973QEA3V-873181
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
1008-1001
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LXT973 Transceiver
Datasheet
249426, Revision 6.0
13 July 2007
Figure 31
Table 42
Cortina Systems
100BASE-FX Transmit Timing
100BASE-FX Transmit Timing Parameters
®
TXD<3:0>, TXEN, TXER setup to
TXCLK High
TXD<3:0>, TXEN, TXER hold
from TXCLK High
TXEN sampled to CRS asserted
TXEN sampled to CRS de-
asserted
TXEN sampled to fiber output (Tx
latency)
1. Typical values are at 25°C, and are for design aid only, are not guaranteed, and are not subject to
LXT973 10/100 Mbps Dual-Port Fast Ethernet PHY Transceiver
production testing.
Parameter
TXD<3:0>
DPBP/N
TXCLK
TXEN
CRS
0ns
Sym
t5
t3
t1
t2
t3
t4
t5
t2
t1
Min
12
0
2
1
–
Typ
–
–
–
–
4
1
t4
250ns
Max
–
–
5
5
–
Units
BT
BT
BT
ns
ns
15.0 Timing Diagrams
Conditions
Test
–
–
–
–
–
Page 83
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