TSI721 Datasheet, PDF (54/68 Pages) Integrated Device Technology – This document uses the following conventions

3. Electrical Characteristics > AC Timing Specifications
During the steady-state, the eye mask prevents the transmitter from de-emphasizing the low frequency content of the data too
much and limiting the available signal-to-noise at the receiver. The de-emphasis introduces a jitter artifact that is not accounted
for in this eye mask. This additional jitter is caused by the finite rise/fall time of the transmitter and the non-uniform voltage
swing between the transitions. This additional deterministic jitter must be accounted for as part of the high probability jitter and
is specified in the following table.
Table 28: Level II Medium Run Near-End (Tx) Template Intervals
Characteristic
Symbol Near-End MRValue Comments Units
Eye mask
T_X1
0.15
-
UI
Eye mask
T_X2
0.40
-
UI
Eye mask
T_Y1
200
For connection mV
to short run Rx
400
For connection
to long run Rx
Eye mask
T_Y2
375
For connection mV
to short run Rx
600
For connection
to long run Rx
Eye mask
T_Y3
N/A
-
mV
Uncorrelated bounded high probability T_UBHPJ
0.15
jitter
-
UIpp
Duty cycle distortion
T_DCD
0.05
-
UIpp
Total jitter
T_TJ
0.30
-
UIpp
Tsi721 Datasheet
Formal Status
Integrated Device Technology
54
May 5, 2014
This document is confidential and is subject to an NDA.