SLXT973QE Cortina Systems Inc, SLXT973QE Datasheet - Page 83

• Manufacturer Part Number: SLXT973QE
• Manufacturer: Cortina Systems Inc

Specifications of SLXT973QE

• Lead Free Status / RoHS Status: Not Compliant

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