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PDIUSBH12D датащи(PDF) 20 Page - NXP Semiconductors

номер детали PDIUSBH12D
подробное описание детали  USB 2-port hub
PDF  28 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PDIUSBH12D датащи(HTML) 20 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
PDIUSBH12
USB 2-port hub
1999 Jul 22
20
AC CHARACTERISTICS (AI/O pins, FULL speed)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Driver characteristics
CL = 50pF;
Rpu = 1.5kΩ on D+ to VCC
Transition Time:
tr
Rise time
Between 10% and 90%
4
20
ns
tf
Fall time
Between 10% and 90%
4
20
ns
tRFM
Rise/fall time matching
(tr/tf)
90
110
%
VCRS
Output signal crossover voltage
1.3
2.0
V
Driver Timings
tEOPT
Source EOP width
Figure 1
160
175
ns
tDEOP
Differential data to EOP transition skew
Figure 1
–2
5
ns
Receiver Timings
Receiver Data Jitter Tolerance
tJR1
To next transition
Characterized and not tested.
–18.5
18.5
ns
tJR2
For paired transitions
Guaranteed by design.
–9
9
ns
EOP Width at Receiver
tEOPR1
Must reject as EOP
Figure 1
40
ns
tEOPR2
Must accept
82
ns
Hub Timings
Full Speed downstream port.
tHDD
Hub Differential Data Delay
Figure 2
40
ns
tSOP
Data bit width distortion after SOP
Figure 2
–5
3
ns
tEOPDR
Hub EOP Delay Relative to tHDD
Figure 3
0
15
ns
tHESK
Hub EOP Output Width Skew
Figure 3
–15
+15
ns



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