isp1122 NXP Semiconductors, isp1122 Datasheet - Page 35

• Manufacturer Part Number: isp1122
• Description: Isp1122 Universal Serial Bus Stand-alone Hub
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 07002
Product specification
Fig 15. Source differential data jitter.
Fig 16. Source differential data-to-EOP transition skew and EOP width.
Fig 17. Receiver differential data jitter.
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handbook, full pagewidth
handbook, full pagewidth
T
T
Full-speed timing symbols have a subscript prefix ‘F’, low-speed timings a prefix ‘L’.
T
PERIOD
PERIOD
PERIOD
differential
data lines
3.3 V
differential
data lines
0 V
differential
data lines
3.3 V
3.3 V
is the bit duration corresponding with the USB data rate.
is the bit duration corresponding with the USB data rate.
0 V
is the bit duration corresponding with the USB data rate.
0 V
T PERIOD
T PERIOD
T PERIOD
crossover point
crossover point
N
t JR
differential data to
SE0/EOP skew
T PERIOD
N
N
T PERIOD
consecutive
T PERIOD
consecutive
transitions
transitions
t DEOP
t JR1
Rev. 03 — 29 March 2000
t DJ1
N
N
T PERIOD
transitions
T PERIOD
paired
transitions
paired
crossover point
t JR2
t DJ2
extended
crossover point
t JR1
source EOP width: t EOPT
receiver EOP width: t EOPR
crossover point
t JR2
USB stand-alone hub
© Philips Electronics N.V. 2000. All rights reserved.
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