Datasheet

MAX4906/MAX4606F/MAX4907/MAX4907F
High-/Full-Speed USB 2.0 Switches
10 ______________________________________________________________________________________
2.5V
V
PF
t
PF
t
FPR
5V
3V
0V
3V
1.5V
2.5V
0V
VCOM_
VNC_
VNO_
Figure 5. MAX4906F/MAX4907F Fault-Protection Response/Recovery Time
Test Circuits/Timing Diagrams (continued)
V
GEN
GND
COM_
C
L
V
OUT
V+
V
OUT
IN
OFF
ON
OFF
ΔV
OUT
Q = (ΔV
OUT
)(C
L
)
NC_
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
OFF
ON
OFF
IN
V
IL
TO V
IH
V+
R
GEN
IN
MAX4906/MAX4906F
MAX4907/MAX4907F
OR NO_
Figure 6. Charge Injection
Detailed Description
The MAX4906/MAX4906F/MAX4907/MAX4907F analog
switches are targeted for USB 2.0 high-speed
(480Mbps) switching applications. These devices still
meet USB low- and full-speed requirements and are
suitable for 10/100 Ethernet switching. The MAX4906/
MAX4906F feature two SPDT switches, while the
MAX4907/MAX4907F feature two SPST switches. The
MAX4907/MAX4907F switch configurations have a low
7Ω (max) on-resistance and 7pF (max) on-capacitance.
The MAX4906/MAX4906F/MAX4907/MAX4907F are fully
specified to operate from a single +3.0V to +3.6V supply
and are available with +5.5V fault protection (MAX4906F/
MAX4907F). When operating from a +3.0V to +3.6V sup-
ply, the low threshold of these devices permits them to
be used with logic levels as low as 1.4V.The
MAX4906/MAX4906F/MAX4907/MAX4907F are based
on a charge-pump-assisted n-channel architecture and
thus operate at 300µA (max) quiescent current. These
devices all feature a shutdown input to reduce the quies-
cent current to less than 2µA (max).