USB On-the-Go Transceivers and Charge Pumps

_______________________________________________________________________________________

5

TIMING CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

TRANSMITTER CHARACTERISTICS (FULL-SPEED MODE)

D+, D- Rise Time

Figures 2 and 5

4

20

ns

D+, D- Fall Time

Figures 2 and 5

4

20

ns

Rise-/Fall-Time Matching

Figures 2 and 5 (Note 3)

90

110

%

Output-Signal Crossover Voltage

Figures 2, 6, and 7 (Note 3)

1.3

2.0

V

TRANSMITTER CHARACTERISTICS (LOW-SPEED MODE)

D+, D- Rise Time

Figures 2 and 5

75

300

ns

D+, D- Fall Time

Figures 2 and 5

75

300

ns

Rise-/Fall-Time Matching

Figures 2 and 5

80

125

%

Output-Signal Crossover Voltage

Figures 2, 6, and 7

1.3

2.0

V

TRANSMITTER TIMING (FULL-SPEED MODE)

Low-to-high, Figures 2 and 6

25

Driver Propagation Delay

(DAT_VP, SE0_VM to D+, D-)

High-to-low, Figures 2 and 6

25

ns

Driver Disable Delay

Figures 1 and 8

25

ns

Driver Enable Delay

Figures 2 and 8

25

ns

TRANSMITTER TIMING (LOW-SPEED MODE) (Low-speed delay timing is dominated by the slow rise and fall times.)

SPEED-INDEPENDENT TIMING CHARACTERISTICS

Receiver Disable Delay

Figure 4

30

ns

Receiver Enable Delay

Figure 4

30

ns

D+ Pullup Assertion Time

During HNP

3

µs

RCV Rise Time

4

ns

RCV Fall Time

4

ns

Figures 3 and 10, |D+ - D-| to DAT_VP

30

Differential-Receiver Propagation

Delay

Figures 3 and 9, |D+ - D-| to RCV

30

ns

Single-Ended-Receiver

Propagation Delay

Figures 3 and 9, D+, D- to DAT_VP,

SE0_VM

30

ns

Interrupt Propagation Delay

100

µs

0.2

µs

Time to Exit Shutdown

1µs

Shutdown Delay

10

µs