SGM7222 Datasheet, PDF (1/16 Pages) SG Micro Corp – DPDT Analog Switch

SGM7222
High Speed USB 2.0
(480Mbps) DPDT Analog Switch
GENERAL DESCRIPTION
FEATURES
The SGM7222 is a high-speed, low-power double-pole/
double-throw (DPDT) analog switch that operates from a
single 1.8V to 4.3V power supply.
SGM7222 is designed for the switching of high-speed
USB 2.0 signals in handset and consumer applications,
such as cell phones, digital cameras, and notebooks with
hubs or controllers with limited USB I/Os.
The SGM7222 has low bit-to-bit skew and high
channel-to-channel noise isolation, and is compatible with
various standards, such as high-speed USB 2.0 (480
Mbps). Each switch is bidirectional and offers little or no
attenuation of the high-speed signals at the outputs. Its
bandwidth is wide enough to pass high-speed USB 2.0
differential signals (480 Mb/s) with good signal integrity.
The SGM7222 contains special circuitry on the D+/D-
pins which allows the device to withstand a V_BUS short to
D+ or D- when the USB devices are either powered off or
powered on.
SGM7222 is available in Green TQFN-1.8×1.4-10L,
MSOP-10 and UTQFN-1.8×1.4-10L packages. It operates
over an ambient temperature range of -40℃ to +85℃.
APPLICATIONS
 R_ON is Typically 4.5Ω at 3.0V
 Low Bit-to-Bit Skew: 50ps (TYP)
 Voltage Operation: 1.8V to 4.3V
 Fast Switching Times:
t_ON 10ns
t_OFF 22ns
 Low Crosstalk: -41dB at 250MHz
 Power-Off Protection when V＋ = 0V,
D+/D- Pins can Tolerate up to 5.25V
 High Off-Isolation: -35dB at 250MHz
 Rail-to-Rail Input and Output Operation
 Break-Before-Make Switching
 Extended Industrial Temperature Range:
-40℃ to +85℃
 Small Packages:
MSOP-10, TQFN-1.8×1.4-10L and
UTQFN-1.8×1.4-10L
BLOCK DIAGRAM
HSD1+
D+
HSD2+
HSD1-
D-
HSD2-
Route Signals for USB 2.0
MP3 and Other Personal Media Players
Digital Cameras and Camcorders
Portable Instrumentation
Set-Top Boxes
PDAs
LOGIC
S
OE
SG Micro Corp
www.sg-micro.com
REV. B. 2