Marvel 88F6281 User Manual
Electrical Specifications
Differential Interface Electrical Characteristics
Copyright © 2008 Marvell
Doc. No. MV-S104859-U0 Rev. E
December 2, 2008, Preliminary
Document Classification: Proprietary Information
Page 127
Table 71: USB High Speed Driver and Receiver Characteristics
8.7.4.2
USB Interface Driver Waveforms
Figure 44: Low/Full Speed Data Signal Rise and Fall Time
Min
Max
Baud Rate
BR
Mbps
-
Baud rate tolerance
Bppm
-500.0
500.0
ppm
-
Data signaling high
VHSOH
360.0
440.0
mV
-
Data signaling low
VHSOL
-10.0
10.0
mV
-
Data rise time
THSR
500.0
-
ps
1
Data fall time
THSF
500.0
-
ps
1
Data source jitter
2
Differential input signaling levels
3
Data signaling common mode voltage range
VHSCM
-50.0
500.0
mV
-
Receiver jitter tolerance
3
Notes:
General Comment: For more information, refer to Universal Serial Bus Specification, Revision 2.0, April 2000.
General Comment: The load is 100 ohm differential for these parameters, unless otherw ise specified.
General Comment: To comply w ith the values presented in this table, refer to your local
Marvell representative for register settings.
1. Defined from 10% to 90% for rise time and 90% to 10% for fall time.
2. Source jitter specified by the "TX eye diagram pattern template" figure.
3. Receiver jitter specified by the "RX eye diagram pattern template" figure.
See note 3
See note 3
See note 2
Driver Parameters
Receiver Parameters
Notes
High Speed
480.0
Description
Sym bol
Units
VCRS
Rise Time
Fall Time
TR
TF
90%
10%
10%
90%
Differential
Data Lines
Data Lines