Datasheet

MAX3301E/MAX3302E
USB On-the-Go Transceivers and Charge Pumps
_______________________________________________________________________________________ 5
TIMING CHARACTERISTICS
(V
CC
= +3V to +4.5V, V
L
= +1.65V to +3.6V, C
FLYING
= 100nF, C
VBUS
= 1µF, ESR
CVBUS
= 0.1Ω (max), T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at V
CC
= +3.7V, V
L
= +2.5V, T
A
= +25°C.) (Note 2)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
TRANSMITTER CHARACTERISTICS (FULL-SPEED MODE)
D+, D- Rise Time t
R
Figures 2 and 5 4 20 ns
D+, D- Fall Time t
F
Figures 2 and 5 4 20 ns
Rise-/Fall-Time Matching Figures 2 and 5 (Note 3) 90 110 %
Output-Signal Crossover Voltage V
CRS_F
Figures 2, 6, and 7 (Note 3) 1.3 2.0 V
TRANSMITTER CHARACTERISTICS (LOW-SPEED MODE)
D+, D- Rise Time t
R
Figures 2 and 5 75 300 ns
D+, D- Fall Time t
F
Figures 2 and 5 75 300 ns
Rise-/Fall-Time Matching Figures 2 and 5 80 125 %
Output-Signal Crossover Voltage V
CRS_L
Figures 2, 6, and 7 1.3 2.0 V
TRANSMITTER TIMING (FULL-SPEED MODE)
t
PLH
Low-to-high, Figures 2 and 6 25
Driver Propagation Delay
(DAT_VP, SE0_VM to D+, D-)
t
PHL
High-to-low, Figures 2 and 6 25
ns
Driver Disable Delay t
PDZ
Figures 1 and 8 25 ns
Driver Enable Delay t
PZD
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 t
PVZ
Figure 4 30 ns
Receiver Enable Delay t
PZV
Figure 4 30 ns
D+ Pullup Assertion Time During HNP 3 µs
RCV Rise Time t
R
Figures 3 and 5, C
L
= 15pF 4 ns
RCV Fall Time t
F
Figures 3 and 5, C
L
= 15pF 4 ns
Figures 3 and 10, |D+ - D-| to DAT_VP 30
Differential-Receiver Propagation
Delay
t
PHL
, t
PLH
Figures 3 and 9, |D+ - D-| to RCV 30
ns
Single-Ended-Receiver
Propagation Delay
t
PHL
, t
PLH
Figures 3 and 9, D+, D- to DAT_VP,
SE0_VM
30 ns
Interrupt Propagation Delay 100 µs
V
BUS_CHRG
Propagation Delay Dominated by the V
BUS
rise time 0.2 µs
Time to Exit Shutdown 1µs
Shutdown Delay 10 µs