Subject: CASE 35152151 {ID:2843424}
Date: Wed, 15 Aug 2001 09:18:32 -0500
From: support@ti.com
To: hb46@umail.umd.edu

Q: Customer needs to use this part as a receiver, and he needs to know what to
do with the unused pins, and if the reference clock is needed or not.

A: The unused transmitter pins should be tied to ground through 50W. The part
will function if they are left open, but tie-off is preferred.

Unused inputs can often be left open when there's an internal pull-up or
pull-down. These include LCKREFN, PREM, TX_EN, TX_ER, ENABLE, LOOPEN,
PRBSEN, and TESTEN. The TXDx pins should be pulled high or low.

GTX_CLK is critical. It drives the PLL from which the recovered clock is
generated, even though the recovery takes place through a phase
interpolator.