Electrical Specifications
Table 65: USB Full Speed Driver and Receiver Characteristics
Full Speed
Min Max
Description
Symbol
BR
Units
Mbps
ppm
Notes
Baud Rate
12.0
-2500.0
-
-
Baud rate tolerance
Bppm
2500.0
Driver Parameters
Ouput single ended high
Ouput single ended low
VOH
VOL
2.8
0.0
3.6
0.3
V
V
1
2
Output signal crossover voltage
Output rise time
VCRS
TFR
1.3
2.0
V
4
4.0
20.0
20.0
3.5
ns
ns
ns
ns
ns
3, 4
3, 4
5, 6
5, 6
6
Output fall time
TFL
4.0
Source jitter total: to next transition
Source jitter total: for paired transitions
Source jitter for differential transition to SE0 transition
TDJ1
TDJ2
TFDEOP
-3.5
-4.0
-2.0
4.0
5.0
Receiver Parameters
Input single ended high
VIH
VIL
2.0
-
-
V
V
-
-
Input single ended low
0.8
-
Differential input sensitivity
Receiver jitter : to next transition
Receiver jitter: for paired transitions
VDI
tJR1
tJR2
0.2
-18.5
-9.0
V
-
18.5
9.0
ns
ns
6
6
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 w ith 1.425 kilohm pull-up resistor to 3.6V.
2.. Defined w ith 14.25 kilohm pull-dow n resistor to ground.
3. Defined from 10% to 90% for rise time and 90% to 10% for fall time.
4. See "Data Signal Rise and Fall Time" w aveform.
5. Including frequency tolerance. Timing difference betw een the differential data signals.
6. Defined at crossover point of differential data signals.
Copyright © 2008 Marvell
MV-S104671-U0 Rev. C
Page 117
December 6, 2008, Preliminary
Document Classification: Proprietary Information
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
