19-3797; Rev 2; 1/07
High-/Full-Speed USB 2.0 Switches
General Description
The MAX4906/MAX4906F/MAX4907/MAX4907F analog
switches combine the low on-capacitance (C
ON
) and
low on-resistance (R
ON
) necessary for high-perfor-
mance switching applications. These devices are
designed for USB 2.0 high-speed applications at
480Mbps. These switches will also handle all the
requirements for USB low- and full-speed signaling.
The MAX4906/MAX4906F feature two single-pole/dou-
ble-throw (SPDT) switches, and the MAX4907/
MAX4907F feature two single-pole/single-throw switches
(SPST). The MAX4907/MAX4907F have a low 7Ω (max)
on-resistance and 7pF (max) on-capacitance. These
devices are fully specified to operate from a single
+3.0V to +3.6V power supply and are protected against
a +5.5V short to COM1 and COM2. This feature makes
them fully compliant with the USB 2.0 specification of
+5.5V fault protection. These devices feature a low
threshold voltage and a +1.4V V
IH
, permitting them to
be used with low-voltage logic. The MAX4906/
MAX4906F/MAX4907/MAX4907F operate at 300µA
(max) quiescent current and feature a shutdown input
to reduce the quiescent current to less than 2µA (max).
The MAX4906/MAX4906F/MAX4907/MAX4907F are avail-
able in space-saving, 2mm x 2mm µDFN packages and
operate over a -40°C to +85°C temperature range.
Features
♦
Fully Specified for a Single +3.0V to +3.6V
Power-Supply Voltage
♦
Low 4Ω (typ), 7Ω (max) On-Resistance (R
ON
)
♦
MAX4907/MAX4907F Ultra-Low 4pF (typ),
7pF (max) On-Capacitance (C
ON
)
♦
-3dB Bandwidth: 1GHz (typ)
♦
Low Bit-to-Bit Skew
≤
100ps
♦
Shutdown Input Reduces Power Consumption
to 2µA (max)
♦
3.3V, 1.8V, and 1.4V Logic Compatible
♦
COM
_
Analog Inputs Fault Protected Against
Shorts to USB Supply Rail Up to +5.5V
♦
Space-Saving Packages
8-Pin and 10-Pin, 2mm x 2mm µDFN Packages
MAX4906/MAX4606F/MAX4907/MAX4907F
Ordering Information
PART
MAX4906ELB
MAX4906FELB
MAX4907ELA
MAX4907FELA
PIN-PACKAGE
10 µDFN
10 µDFN
8 µDFN
8 µDFN
PKG CODE
L1022-1
L1022-1
L822-1
L822-1
Applications
Cell Phones
PDAs
Digital Still Cameras
GPS
Notebook Computers
Relay Replacements
USB Switching
Ethernet Switching
Video Switching
Bus Switches
T3/E3 Switches for
Redundancy Protection
Note:
All devices operate over the -40°C to +85°C operating
temperature range.
Selector Guide appears at end of data sheet.
Typical Operating Characteristics
EYE DIAGRAM
V
NO1OUT
V+ =3.3V
I
BIAS
= 9mA
f = 240MHz
USB 2.0
HIGH SPEED
TRANSMIT
TEMPLATE
Pin Configurations
TOP VIEW
IN
SHDN/EN
GND
1
2
3
4
5
10
9
V+
NC1
NC2
NO1
NO2
100mV/div
COM1
COM2
MAX4906
MAX4906F
8
7
6
μDFN
V
NO2OUT
500ps/div
Pin Configurations continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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