UM7222/7222A
High-Speed USB2.0 (480 Mbps) DPDT Switch
UM7222
QFN-10 1.8*1.4
UM7222A
QFN-10 2.1*1.6
General Description
The UM7222/UM7222A is a dual port high-speed, low-power data switch optimized for USB 2.0
signal switching. The UM7222/UM7222A switch is configured in double-pole/ double-throw
DPDT. It handles bidirectional signal flow, achieving a 550 MHz -3dB bandwidth, and a port to
port crosstalk and isolation at -50dB at 250MHz.
The UM7222/UM7222A operates from a single +2.7V to +5.5V supply, with current consumption
less than 1 micro amper.
The UM7222/UM7222A features wide bandwidth and low bit-to-bit skew allow it to pass
high-speed differential signal with good signal integrity, offers little or no attenuation of the
high-speed signals at the outputs. Its high channel-to-channel crosstalk rejection results in
minimal noise interface. Its bandwidth is wide enough to pass High-speed USB 2.0 differential
signals (480Mbps). The control logic threshold is guaranteed to be compatible with 1.8V logic.
UM7222 is available in Pb-free QFN-10 package (1.4mm×1.8mm×0.55mm), while UM7222A is
available in Pb-free QFN-10 package (2.1mm×1.6mm×0.55mm), they are ideal for portable high
speed mix signal switching application.
Applications
Differential Signal Data Routing
USB2.0 Signal Routing
Cell Phone, PDA, Digital Camera and
Notebook
LCD Monitor, TV, and Set-top Box
Features
Ron is Typically 6.5Ω at V
CC
=3.0V
Low Bit-to-Bit Skew: Typically 50ps
OVT on D+ and D- up to 5.5V
Power OFF Protection:
When V
CC
=0V, D+ and D- Can Tolerate up
to 5.5V
Low Crosstalk: -50dB (250MHz)
Low Current Consumption: 1µA
Near-Zero Propagation Delay:250ps
Channel On-Capacitance: 6.5pF(Typical)
V
CC
Operating Range: +2.7V to +5.5V
550MHz Bandwidth(or Data Frequency)
Lead (Pb) Free QFN-10 Package
ESD rating: ±4KV I/O to GND
Pin Configurations
HSD1_
7
OE
8
HSD2_
6
5
D-
Top View
V
CC
9
CONTROL
4
GND
S
10
1
HSD1+
2
HSD2+
3
D+
M: Monthly Code
UM7222
QFN-10
UM7222
________________________________________________________________________
http://www.union-ic.com Rev.04 May.2011
1/10
UM7222/7222A
Function Table
OE
1
0
0
S
X
0
1
HSD1+, HSD1-
OFF
ON
OFF
HSD2+, HSD2-
OFF
OFF
ON
Absolute Maximum Ratings
Symbol
V
CC
V
IS
V
IN
I
D
P
D
T
O
T
STG
Parameter
Supply Voltage
Analog Switch Input Voltage
Digital Select Input Voltage
Continuous DC Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Limit
- 0.5 to + 6.5
-0.5 to +6.5
- 0.5 to + 6.5
50
0.5
- 40 to +85
- 65 to +150
Unit
V
mA
W
°C
DC Electrical Characteristics
Limits (–40 to 85 °C)
Symbol
I
IN
I
OFF
I
CCT
I
OZ
I
CC
V
IH
V
IL
V
IK
R
ON
Parameter
Input Leakage
Current
Power Off
Leakage Current
Increase in I
CC
per Control
Voltage
OFF State
Leakage Current
Quiescent
Supply Current
Input High
Voltage
Input Low
Voltage
Clamp Diode
Voltage
On-Resistance
(Note2)
On Resistance
Match Between
Channels
(Note2,3,)
On Resistance
Flatness
(Note2,3,)
Test Conditions
0≤V
IS
≤V
CC
0≤V
IS
≤V
CC
V
IN
= 2.6V
0≤V
IS
≤V
CC
V
IS
=V
CC
or GND
Vcc(V)
3.6
0
3.6
3.6
3.6
3.0 to3.6
3.0 to 3.6
I
IS
=-18mA
V
IS
=0 to 0.4 V
I
D
=8mA
V
IS
=0 to 0.4 V
I
D
=8mA
V
IS
=0 to 1.0 V
I
D
=8mA
3.0
3.0
Temp
Min
Full
Full
Full
Full
Full
Full
Full
Full
Full
6.5
1.3
0.5
-1.2
9
-1.0
-1.0
-1.0
Typ
(Note1)
Unit
Max
1.0
1.0
10
1.0
1.0
μA
μA
μA
μA
μA
V
V
V
Ω
ΔR
ON
3.0
Full
0.35
Ω
R
FLAT
3.0
Full
4.5
Ω
1: Typically values are at V
CC
=3.3V and T
A
=+25
℃
.
2: Guaranteed by design. Resistance measurements do not include test circuit or package
resistance.
3: Parameter is characterized but not tested in production.
________________________________________________________________________
http://www.union-ic.com Rev.04 May.2011
3/10
UM7222/7222A
Typical Performance Characteristics
35
30
R
ON
vs V
D
and Single Supply Voltage
T=25 C
I
ON
=8mA
O
30
25
20
15
10
5
0
0.0
R
ON
vs Analog Voltage and Temperature
V+=3.3V
I
ON
=8mA
R
ON
-ON Resistance (ohm)
V+=3.0V
25
20
15
10
5
0
0.0
R
ON
-ON Resistance(ohm)
T=85 C
0
V+=3.3V
V+=3.6V
T=25 C
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V
D
-Analog Voltage(V)
V
D
-Analog Voltage(V)
Switching Threshold vs Supply Voltage
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
3.0
Supply Current vs Input Switching Frequency
25
20
V
T
-Switching Threshold(V)
V
IH
V+=3.6V
15
I+-Supply Current(uA)
10
5
0
-5
-10
-15
-20
V
IL
V+=3.3V
V+=3.0V
3.1
3.2
3.3
3.4
3.5
3.6
-25
10
100
1K
10K
100K
1M
10M
V+-Supply Voltage(V)
Input Switching Frequency(Hz)
________________________________________________________________________
http://www.union-ic.com Rev.04 May.2011
5/10
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