EGLXT973QCA3V-873168 Cortina Systems Inc, EGLXT973QCA3V-873168 Datasheet - Page 87
![no-image](/images/manufacturer_photos/0/1/162/cortina_systems_inc_sml.jpg)
EGLXT973QCA3V-873168
Manufacturer Part Number
EGLXT973QCA3V-873168
Description
Manufacturer
Cortina Systems Inc
Datasheet
1.EGLXT973QCA3V-873168.pdf
(97 pages)
Specifications of EGLXT973QCA3V-873168
Lead Free Status / RoHS Status
Compliant
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LXT973 Transceiver
Datasheet
249426, Revision 6.0
13 July 2007
Figure 35
Table 46
Figure 36
Table 47
Cortina Systems
10BASE-T SQE (Heartbeat) Timing
10BASE-T SQE (Heartbeat) Timing Parameters
10BASE-T Jab and Unjab Timing
10BASE-T Jab and Unjab Timing Parameters
®
COL (SQE) delay after TXEN de-
asserted
COL (SQE) pulse duration
1. Typical values are at 25°C, and are for design aid only, are not guaranteed, and are not subject to
Maximum transmit time
Unjab time
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.
production testing.
TXEN
COL
TXD
TXCLK
TXEN
Parameter
Parameter
COL
Sym
Sym
t
t1
t2
1
t1
t2
0.65
Min
Min
250
0.5
20
t
1
Typ
Typ
1.2
.95
–
–
1
1
t
Max
Max
150
750
2
1.6
1.5
Units
Units
ms
ms
μ s
μ s
15.0 Timing Diagrams
t
2
Conditions
Conditions
Test
Test
–
–
–
–
Page 87
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