MAX4906 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – High-/Full-Speed USB 2.0 Switches

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.
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
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
Ordering Information
PART
PIN-PACKAGE
PKG CODE
MAX4906ELB
10 µDFN
L1022-1
MAX4906FELB
10 µDFN
L1022-1
MAX4907ELA
8 µDFN
L822-1
MAX4907FELA
8 µDFN
L822-1
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+ =3.3V
IBIAS = 9mA
f = 240MHz
VNO1OUT
USB 2.0
HIGH SPEED
TRANSMIT
TEMPLATE
100mV/div
Pin Configurations
TOP VIEW
IN 1
SHDN/EN 2
GND 3
COM1 4
COM2 5
MAX4906
MAX4906F
10 V+
9 NC1
8 NC2
7 NO1
6 NO2
500ps/div
VNO2OUT
μDFN
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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