Philips ISP1122 Fig 15. Source differential data jitter., Fig 16. Source differential data-to-EOP transition skew and EOP width., Fig 17. Receiver differential data jitter.

Philips Semiconductors ISP1122
USB stand-alone hub
Product specification Rev. 03 — 29 March 2000 35 of 48
9397 750 07002 © Philips Electronics N.V. 2000. All rights reserved.
TPERIOD is the bit duration corresponding with the USB data rate.
Fig 15. Source differential data jitter.
handbook, full pagewidth
MGR870
TPERIOD
differential
data lines
crossover point crossover point crossover point
consecutive
transitions
N × TPERIOD + tDJ1 paired
transitions
N × TPERIOD + tDJ2
+3.3 V
0 V
TPERIOD is the bit duration corresponding with the USB data rate.
Full-speed timing symbols have a subscript prefix ‘F’, low-speed timings a prefix ‘L’.
Fig 16. Source differential data-to-EOP transition skew and EOP width.
h
andbook, full pagewidth
MGR776
TPERIOD
differential
data lines
crossover point
differential data to
SE0/EOP skew
N × TPERIOD + tDEOP
source EOP width: tEOPT
receiver EOP width: tEOPR
crossover point
extended
+3.3 V
0 V
TPERIOD is the bit duration corresponding with the USB data rate.
Fig 17. Receiver differential data jitter.
handbook, full pagewidth
MGR871
TPERIOD
tJR
differential
data lines
consecutive
transitions
N × TPERIOD + tJR1
paired
transitions
N × TPERIOD + tJR2
+3.3 V
0 V tJR1 tJR2