參數(shù)資料
型號: ISP1122
廠商: NXP Semiconductors N.V.
英文描述: Universal Serial Bus stand-alone hub
中文描述: 通用串行總線獨立的樞紐
文件頁數(shù): 35/48頁
文件大?。?/td> 1159K
代理商: ISP1122
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.
T
PERIOD
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
T
PERIOD
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.
handbook, full pagewidth
MGR776
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
T
PERIOD
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
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