SGM7222
High Speed USB 2.0
(480Mbps) DPDT Analog Switch
GENERAL DESCRIPTION
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.
HSD1+
FEATURES
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
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℃.
D+
HSD2+
HSD1-
APPLICATIONS
Route Signals for USB 2.0
MP3 and Other Personal Media Players
Digital Cameras and Camcorders
Portable Instrumentation
Set-Top Boxes
PDAs
D-
HSD2-
LOGIC
S
OE
SG Micro Limited
www.sg-micro.com
REV. B
SGM7222
PACKAGE/ORDERING INFORMATION
MODEL
PIN-
PACKAGE
MSOP-10
SGM7222
TQFN-1.8×1.4-10L
UTQFN-1.8×1.4-10L
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
High Speed USB 2.0
(480Mbps) DPDT Analog Switch
ORDERING
NUMBER
SGM7222YMS10/TR
SGM7222YWQ10/TR
SGM7222YUWQ10/TR
PACKAGE
MARKING
SGM7222YMS10
7222
7222
PACKAGE
OPTION
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
ABSOLUTE MAXIMUM RATINGS
V
+
to GND................................................................... 0V to 4.6V
Analog, Digital voltage range .......................-0.3V to (V
+
) + 0.3V
Continuous Current HSDn or Dn…….............................±100mA
Peak Current HSDn or Dn…….......................................±150mA
Operating Temperature Range............................-40℃ to +85℃
Junction Temperature....................................................... 150℃
Storage Temperature.........................................-65℃ to +150℃
Lead Temperature (soldering, 10s)...................................260℃
ESD Susceptibility
HBM..................................................................................4000V
MM......................................................................................400V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can
cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated
circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its
published specifications.
SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at
any time. Please contact SGMICRO sales office to get the last datasheet.
SG Micro Limited
www.sg-micro.com
2
SGM7222
PIN CONFIGURATIONS
(TOP VIEW)
HSD1- HSD2-
7
OE
V
+
S
8
9
10
1
2
6
5
4
3
D-
GND
High Speed USB 2.0
(480Mbps) DPDT Analog Switch
S
HSD1+
HSD2+
D
+
D+
GND
1
2
3
4
5
10
9
8
7
6
V
+
OE
HSD1-
HSD2-
D-
HSD1
+
HSD2
+
TQFN-1.8×1.4-10L/ UTQFN-1.8×1.4-10L
MSOP-10
PIN DESCRIPTION
TQFN-1.8×1.4-10L /
UTQFN-1.8×1.4-10L
9
4
10
8
1, 2
7, 6
3, 5
MSOP-10
10
5
1
9
2, 3
8, 7
4, 6
NAME
V
+
GND
S
FUNCTION
Power Supply
Ground
Select Input
Output Enable
Data Ports
OE
HSD1+ , HSD2+
HSD1- , HSD2-
D+ , D-
FUNCTION TABLE
OE
0
0
1
S
0
1
×
HSD1+
HSD1-
ON
OFF
OFF
HSD2+
HSD2-
OFF
ON
OFF
NOTE: Switches Shown For Logic “0” Input
SG Micro Limited
www.sg-micro.com
3
SGM7222
High Speed USB 2.0
(480Mbps) DPDT Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= +1.8V to +4.3V, GND = 0V, V
IH
= +1.6V, V
IL
= +0.5V, T
A
= -40℃ to +85℃. Typical values are at V
+
= +3.3V, T
A
= +25℃, unless
otherwise noted.)
PARAMETER
ANALOG SWITCH
Analog I/O Voltage
(HSD1+, HSD1-, HSD2+, HSD2-)
On-Resistance
On-Resistance Match Between
Channels
On-Resistance Flatness
Power Off Leakage Current (D+, D-)
Increase in I
+
per Control Voltage
Source Off Leakage Current
Channel On Leakage Current
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Time Delay
Propagation Delay
Off Isolation
Channel-to-Channel Crosstalk
-3dB Bandwidth
Channel-to-Channel Skew
Charge Injection Select Input to
Common I/O
HSD+, HSD-, D+, D-
ON Capacitance
POWER REQUIREMENTS
Power Supply Range
Power Supply Current
V
+
I
+
V
+
= 3.0V, V
S
, V
OE
= 0V or V
+
-40℃ to +85℃
-40℃ to +85℃
1.8
4.3
1
V
µA
t
ON
t
OFF
t
D
t
PD
O
ISO
X
TALK
BW
t
SKEW
Q
C
ON
V
IS
= 0.8V, R
L
= 50Ω, C
L
= 10pF,
Test Circuit 2
V
IS
= 0.8V, R
L
= 50Ω, C
L
= 10pF,
Test Circuit 3
R
L
= 50Ω, C
L
= 10pF
Signal = 0dBm, R
L
= 50Ω,
f = 250MHz, Test Circuit 4
Signal = 0dBm, R
L
= 50Ω,
f = 250MHz, Test Circuit 5
Signal = 0dBm, R
L
= 50Ω, C
L
= 5pF
Test Circuit 6
R
L
= 50Ω, C
L
= 10pF
V
G
= GND, C
L
= 1.0nF, R
G
= 0Ω,
Q = C
L
x V
OUT
, Test Circuit 7
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
10
22
4
0.3
-35
-41
550
0.05
11
6.5
ns
ns
ns
ns
dB
dB
MHz
ns
pC
pF
V
IH
V
IL
I
IN
V
+
= 3.0V, V
S
, V
OE
= 0V or V
+
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
1.6
0.5
1
V
V
µA
V
IS
R
ON
∆R
ON
R
FLAT(ON)
I
OFF
I
CCT
I
HSD2(OFF)
I
HSD1(OFF)
I
HSD2(ON)
, I
HSD1(ON)
V
+
= 3.0V, V
IS
= 0V to 0.4V, I
D
= 8mA,
Test Circuit 1
V
+
= 3.0V, V
IS
= 0V to 0.4V, I
D
= 8mA,
Test Circuit 1
V
+
= 3.0V, V
IS
= 0V to 1.0V, I
D
= 8mA,
Test Circuit 1
V
+
= 0V, V
D
= 0V to 3.6V,
V
S
, V
OE
= 0V or 3.6V
V
+
= 3.6V, V
S
or V
OE
= 2.6V
V
+
= 3.6V, V
IS
= 3.3V/ 0.3V,
V
D
= 0.3V/ 3.3V
V
+
= 3.6V, V
IS
= 3.3V/ 0.3V,
V
D
= 3.3V/ 0.3V or floating
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
1.5
0.15
0
4.5
V
+
8.5
9
0.6
1.6
2.0
2.6
1
5
1
1
V
Ω
Ω
Ω
µA
µA
µA
µA
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX UNITS
SG Micro Limited
www.sg-micro.com
4
SGM7222
High Speed USB 2.0
(480Mbps) DPDT Analog Switch
TYPICAL PERFORMANCE CHARACTERISTICS
Response vs. Frequency
20
0
On Response (dB)
On Response (dB)
20
0
-20
-40
-60
-80
-100
-120
-140
V
+
= +3V
T
A
= +25℃
0.1
1
10
100
Frequency (MHz)
1000
OFF-ISOLATION
Response vs. Frequency
-20
-40
-60
-80
-100
-120
-140
0.1
1
10
100
Frequency (MHz)
1000
V
+
= +3V
T
A
= +25℃
CROSSTALK
SG Micro Limited
www.sg-micro.com
5
电子工程世界
电源技术
