EGLXT973QEA3V-873181 Cortina Systems Inc, EGLXT973QEA3V-873181 Datasheet - Page 63

• Manufacturer Part Number: EGLXT973QEA3V-873181
• Description: IC TXRX 2PORT ETH EXT 100-MQFP
• Manufacturer: Cortina Systems Inc

Specifications of EGLXT973QEA3V-873181

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1008-1001

LXT973 Transceiver
Datasheet
249426, Revision 6.0
13 July 2007
11.0
11.1
Figure 25
Figure 26
Cortina Systems
Clock Generation
External Oscillator
Figure 25
10BASE-T and 100BASE-TX in the LXT973 Transceiver.
MII 10BASE-T DTE Mode Auto-Negotiation
100BASE-T DTE Mode Auto-Negotiation
®
RXCLK
(
(Sourced by LXT973)
TXCLK
LXT973 10/100 Mbps Dual-Port Fast Ethernet PHY Transceiver
Sourced by LXT973)
(Sourced by LXT973)
(
TXCLK
RXCLK
Sourced by LXT97
REFCLK
(25 MHz Oscillator Clock)
REFCLK
(25 MHz Oscillator Clock)
through
)
2.5 MHz Clock During Auto-Negotiation
2.5 MHz Clock During Auto-Negotiation
Figure 27 on page 64
2.5 MHz Clock During Auto-Negotiation and 10BASE-T Data / Idle
2.5 MHz Clock During Auto-Negotiation and 10BASE-T Data / Idle
illustrate the different frequencies of clock for
25 MHz During 100BASE-T Mode
25 MHz During 100BASE-T Mode
11.0 Clock Generation
Page 63