TLK2501 Datasheet, PDF (22/25 Pages) Texas Instruments – 1.5 TO 2.5 GBPS TRANSCEIVER

TLK2501
1.5 TO 2.5 GBPS TRANSCEIVER
SLLS427D − AUGUST 2000 − REVISED JULY 2003
APPLICATION INFORMATION
VDD
V(term)
TXP
TXN
Rt
Rt
VDD
Rt
Transmission
Line
0.01 µF ^V(term)
Rt
0.01 µF
RXP
RXN
Data
Data
Transmission
Line
VDD
200 Ω
820 Ω
+
_
V(term)
Preemphasis = 21 mA
(See Note A)
De-Emphasis = 19 mA
TRANSMITTER
MEDIA
RECEIVER
NOTE A: This assumes RREF = 200 Ω and termination resistance = 50 Ω. See Figure 14 and section choosing RREF resistor values for more
information.
Figure 16. High-Speed I/O AC-Coupled Mode
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