XRS10L120 Datasheet, PDF (18/52 Pages) Exar Corporation – SERIAL ATA II: 1:2 PORT MULTIPLIER

XRS10L120
PRELIMINARY
SERIAL ATA II: 1:2 PORT MULTIPLIER
REV. P1.0.1
SERIAL ATA RECEIVER
An equivalent circuit for the XRS10L120 Serial ATA inputs is shown in Figure 17. The device receiver mask is
shown in Figure 18. This circuit is designed to be AC coupled. Note that the Serial ATA system specification
requires the common mode value of the receiver to be near ground; to accomplish this, a high value resistor
should be placed on the connector side of the AC coupling capacitor. The termination resistors are not
connected during power-up.
FIGURE 17. SERIAL ATA EQUIVALENT INPUT CIRCUIT
FIGURE 18. RECEIVE EYE MASK FOR SERIAL ATA INPUT
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