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AT43301 Datasheet(PDF) 14 Page - ATMEL Corporation

Part # AT43301
Description  Low-cost USB Hub Controller
PDF  27 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43301 Datasheet(HTML) 14 Page - ATMEL Corporation

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14
1137J–USB–01/06
AT43301
Note:
1. With 6.000 MHz, 100 ppm crystal.
Table 3-6.
DPx, DMx Source Timings, Full Speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
tDRATE
Full Speed Data Rate(1)
Average bit rate
11.97
12.03
Mb/s
t
FRAME
Frame Interval(1)
0.9995
1.0005
ms
t
RFI
Consecutive Frame Interval Jitter(1)
No clock adjustment
42.0
ns
tRFIADJ
Consecutive Frame Interval Jitter(1)
With clock adjustment
126.0
ns
tDJ1
tDJ2
Source Diff Driver Jitter
To Next Transition
For Paired Transitions
-3.5
-4.0
3.5
4.0
ns
ns
tFDEOP
Source Jitter for Differential Transition to SEO Transitions
-2.0
5.0
ns
tJR1
tJR2
Recvr Data Jitter Tolerance
To Next Transition
For Paired Transitions
-18.5
-9.0
18.5
9.0
ns
ns
tFEOPT
Source SEO interval of EOP
160.0
175.0
ns
t
FEOPR
Receiver SEO interval of EOP
82.0
ns
tFST
Width of SEO interval during differential transition
14.0
ns
Table 3-7.
DPx, DMx Driver Characteristics, Low-speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
tR
Rise time
CL = 200 - 600 pF
75.0
300.0
ns
t
F
Fall time
C
L = 200 - 600 pF
75.0
300.0
ns
t
RFM
t
R/tF matching
80.0
125.0
%
Table 3-8.
DPx, DMx Hub Timings, High-Speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
t
HDD2
Hub Differential Data Delay without Cable
44.0
ns
t
HDJ1
t
HDJ2
Hub Diff Driver Jitter
To Next Transition
For Paired Transitions
-3.0
-1.0
3.0
1.0
ns
ns
t
FSOP
Data Bit Width Distortion after SOP
-5.0
5.0
ns
tFEOPD
Hub EOP Delay Relative to tHDD
015.0
ns
t
FHESK
Hub EOP Output Width Skew
-15.0
15.0
ns



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