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88F6281
Hardware Specifications
Doc. No. MV-S104859-U0 Rev. E Copyright © 2008 Marvell
Page 126 Document Classification: Proprietary Information December 2, 2008, Preliminary
Table 70: USB Full Speed Driver and Receiver Characteristics
Min Max
Baud Rate BR Mbps -
Baud rate tolerance Bppm -2500.0 2500.0 ppm -
Ouput single ended high VOH 2.8 3.6 V 1
Ouput single ended low VOL 0.0 0.3 V 2
Output signal crossover voltage VCRS 1.3 2.0 V 4
Output rise time TFR 4.0 20.0 ns 3, 4
Output fall time TFL 4.0 20.0 ns 3, 4
Source jitter total: to next transition TDJ1 -3.5 3.5 ns 5, 6
Source jitter total: for paired transitions TDJ2 -4.0 4.0 ns 5, 6
Source jitter for differential transition to SE0 transition TFDEOP -2.0 5.0 ns 6
Input single ended high VIH 2.0 - V -
Input single ended low VIL - 0.8 V -
Differential input sensitivity VDI 0.2 - V -
Receiver jitter : to next transition tJR1 -18.5 18.5 ns 6
Receiver jitter: for paired transitions tJR2 -9.0 9.0 ns 6
Note s:
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 with 1.425 kilohm pull-up resistor to 3.6V.
2.. Defined with 14.25 kilohm pull-down 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 between the differential data signals.
6. Defined at crossover point of differential data signals.
Driver Parameters
Receiver Parameters
12.0
NotesDescription Symbol
Full Speed
Units