TLK4015 Datasheet, PDF (2/24 Pages) Texas Instruments – QUAD 0.6 TO 1.5 Gbps TRANSCEIVER

TLK4015
QUAD 0.6 to 1.5 Gbps TRANSCEIVER
SLLS541 – DECEMBER 2002
description (continued)
The TLK4015 has a loss-of-signal detection circuit for conditions where the incoming signal no longer has
sufficient voltage amplitude to keep the clock recovery circuit in lock.
To prevent a data bit error from causing a valid data packet to be interpreted as a comma and thus causing
erroneous word alignment by the comma detection circuit, the comma word alignment circuit is turned off after
the link is properly established in TLK4015.
The TLK4015 allows users to implement redundant ports by connecting receive data bus pins from two
TLK4015 devices together. Asserting LCKREFNx to a low state drives the receive data bus pins, RDx[0–15],
Rx_CLK and Rx_ER, Rx_DV/LOSx to a high-impedance state. This places the device in a transmit-only mode
because the receiver is not tracking the data.
The TLK4015 uses a 2.5-V supply. The I/O section is 3-V compatible. With the 2.5-V supply the device is very
power-efficient, typically consuming less than 1.5 W. The TLK4015 is characterized for operation from –40°C
to 85°C.
AVAILABLE OPTIONS
PACKAGE
TA
PLASTIC BALL GRID ARRAY
(PBGA)
–40°C to 85°C
TLK4015IGPV
2
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