Data Sheet
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
Comlinear® CLCUSB42
Low Power, High-Speed (480MSPS) USB 2.0
Analog Switch
FEATURES
n ±8kV ESD protection on all pins
n 7pF on capacitance
n 4.0Ω on resistance
n 720MHz -3dB bandwidth
n <1μA supply current in standby mode
n <6μA over a wide control voltage range
n -45dB crosstalk
n Power-off protection when VS = 0V;
D+ and D- tolerate up to 5.25V
n Power-on protection when VS ≠ 0V;
D+ and D- tolerate up to 5.25V
n Input voltage range extends 0.3V
beyond VS
n Operates from 3V to 4.3V supplies
n Pb-free 1.4mm x 1.8mm QFN-10 package
APPLICATIONS
n Cell phones
n PDAs
n Digital cameras
n Notebooks
n LCD TVs
n Set top box
n High-speed differential signal applications
n USB 2.0 switching
General Description
The CLCUSB42 is a dual-pole, double-throw (DPDT) analog switch designed
for switching high-speed analog signals. The CLCUSB42 is optimized for
switching 480Mbps (USB2.0) signals in portable devices such as cell phones,
digital cameras, PDAs, and notebook computers.
The CLCUSB42 offers superior crosstalk (-45dB) and off-isolation (-30dB) to
reduce channel-to-channel interferance and provide good signal integrity.
The low on-channel resistance and capacitance reduce attentuation and
distortion during bi-directional HS signal routing.
The CLCUSB42 also features protection circuitry on D+ and D- pins that
allows the switch to handle overvoltage conditions when powered on or off.
Functional Block Diagram
Ordering Information
Part Number Package Pb-Free RoHS Compliant Operating Temperature Range Packaging Method
CLCUSB42ILP10X QFN-10 Yes Yes -40°C to +125°C Reel
Moisture sensitivity level for all parts is MSL-1.
Control
OE
DA+
SEL
D+
DB+
DA-
DB-
D-
Typical Application
USB Socket
Connection
DA+
D+
DB+
DA-
DB-
D-
Baseband Processor
USB Transceiver
Multimedia Processor
USB Transceiver
Embedded
Storage
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com 2
QFN Pin Assignments
Pin No. Pin Name Description
1 D+ Common Data Port
2 D- Common Data Port
3 GND Ground
4 DA- A Data Port
5 DA+ A Data Port
6 DB- B Data Port
7 DB+ B Data Port
8 OE Output Enable Bar
9 VSPositive supply
10 SEL Select Input
Truth Table
SEL OE Function
X HIGH Disconnect
LOW LOW Select A Port; (D+, D- = DA+, DA-)
HIGH LOW Select B Port; (D+, D- = DB+, DB-)
QFN Pin Conguration
OE DA+
DA-
Top View
GND
SEL
DB+
DB-
Vs
D+
D-
76
8
12
9
10
5
4
3
Control
OE
DA+
SEL
D+
DB+
DA-
DB-
D-
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com 3
Absolute Maximum Ratings
The safety of the device is not guaranteed when it is operated above the “Absolute Maximum Ratings”. The device should
not be operated at these “absolute” limits. Adhere to the “Recommended Operating Conditions” for proper device func-
tion. The information contained in the Electrical Characteristics tables and Typical Performance plots reect the operating
conditions noted on the tables and plots.
Parameter Min Max Unit
Supply Voltage -0.5 4.6 V
SEL Voltage -0.5 4.6 V
Input Voltage Range (DA/B+, DA/B-) 0.5 +Vs +0.3V V
Input Voltage Range (D+, D- when Vs > 0) 0.5 +Vs +0.3V V
Input Voltage Range (D+, D- when Vs = 0) -0.5 5.25 V
Input / Output Current 50 mA
Reliability Information
Parameter Min Typ Max Unit
Junction Temperature 150 °C
Storage Temperature Range -65 150 °C
Lead Temperature (Soldering, 10s) 260 °C
ESD Protection
Product DFN-10
Human Body Model (HBM) 8kV
Charged Device Model (CDM) 1.5kV
Charged Device Model (MM) 400V
Recommended Operating Conditions
Parameter Min Typ Max Unit
Operating Temperature Range -40 +125 °C
Supply Voltage Range 3 4.3 V
SEL Voltage Range 0 VsV
Input Voltage Range (D+, D-, DA/B+, DA/B-) 0 VsV
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com 4
Electrical Characteristics
TA = 25°C, Vs = +3V, bold indicates -40°C to +125°C of Tj; unless otherwise noted.
Symbol Parameter Conditions Min Typ Max Units
Frequency Domain Response
BW-3dB -3dB Bandwidth
RL = RS = 50Ω, CL = 0pF 720 MHz
RL = RS = 50Ω, CL = 5pF 550 MHz
Time Domain Response
tON Turn-On Time VIN/OUT = 0.8V, RL = 50Ω, CL = 5pF,
VSEL_HIGH = VS , VSEL_LOW = 0, 3 ≤ VS ≤ 3.6V 13 30 ns
tOFF Turn-Off Time
VIN/OUT = 0.8V, RL = 50Ω, CL = 5pF,
VSEL_HIGH = VS , VSEL_LOW = 0, 3 ≤ VS ≤ 3.6V 12 25 ns
tPD_RISE/FALL Rise/Fall Propagation Delay RL = RS = 50Ω, CL = 5pF, VS = 3.3V 0.25 ns
tBBM Break-Before-Make Delay Time RL = RS = 50Ω, CL = 5pF, 3 ≤ VS ≤ 3.6V 5 ns
tSK1 Output Skew Between Switches
Skew between Switch 1 and Switch 2,
RL = 50Ω, CL = 5pF, 3 ≤ VS ≤ 3.6V 0.05 ns
tSK2 Output Skew of Same Switches
Skew between opposite transitions in same
switch, RL = 50Ω, CL = 5pF, 3 ≤ VS ≤ 3.6V 0.02 ns
Distortion/Noise Response
OFFISO Off Isolation f = 240MHz, RL = RS = 50Ω, CL = 0pF, VS = 3V -30 dB
XTALK Crosstalk Channel-to-channel at f = 240MHz,
RL = RS = 50Ω, CL = 0pF, VS = 3V -45 dB
DC Performance
VSEL_HIGH Control Input High Voltage
3 ≤ VS ≤ 3.6V 1.3 V
VS = 4.3V 1.7 V
VSEL_LOW Control Input Low Voltage
3 ≤ VS ≤ 3.6V 0.5 V
VS = 4.3V 0.7 V
ISEL Control Input Leakage Current 0 ≤ VSEL ≤ VS, VS = 4.3V -1 1 μA
ISQuiescent Supply Current VSEL = 0V or VS, IIN/OUT = 0A 1μA
IST Increase in IS on VS pin per Control Voltage VSEL = 2.6V, VS = 4.3V 10 μA
VSEL = 1.8V, VS = 4.3V 30 μA
ILEAK OFF-State Leakage Current on D±, DA/B± 0 < VD±, DA±, DB± ≤ 3.6V, VS = 4.3V -2 2 μA
IOFF Power OFF Leakage Current on D± VD± = 4.3V, VS = 0V -2 2 μA
RON ON Resistance VIN/OUT = 0.4V, IIN/OUT = 8A, VS = 3V 46.5 Ω
Δ RON ON Resistance Match Between Channels(1) VIN/OUT = 0.4V, IIN/OUT = 8A, VS = 3V 0.35 Ω
RFLAT_ON RON Flatness(2) 0V < VIN/OUT ≤ 1.0V, IIN/OUT = 8A, VS = 3V 1Ω
Capacitance
CIN Control Pin Input Capacitance f = 240MHz, VS = 0V 1.5 pF
CON ON Capacitance f = 240MHz, VS = 3.6V 7 pF
COFF OFF Capacitance f = 240MHz, VS = 3.6V 3.5 pF
Notes:
1. Δ RON(MAX) = | RON (Channel1) - RON (Channel2) |
2. RFLAT_ON is dened as the difference between the maximun and minimum value of RON measured over specied VIN/OUT range.
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com 5
Typical Performance Characteristics
TA = 25°C, Vs = +3V; unless otherwise noted.
Crosstalk vs. Frequency
Eye Diagram Off Isolation vs. Frequency
Differential Signal (V)
Time (ns)
0 0.4 0.8 1.2 1.6 2.0
-0.5
0.5
0.3
0.1
-0.1
-0.3
-70
30
20
10
0
-10
-20
-30
-40
-50
-60
100MHz
-40.582dB
480MHz
-31.95dB
240MHz
-34.155dB
-70
30
20
10
0
-10
-20
-30
-40
-50
-60
100MHz
-66.188dB
480MHz
-36.949dB
240MHz
-55.811dB
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com 6
Timing Diagrams
50%
VSEL_H
VSEL_L
SEL
Input
trise , t fall < 5ns
VOUT
0.9xV OUT
0.1xV OUT
0V
tON tOFF
Switch
Output
Figure 1. tON, tOFF
V
S
V
OUT/IN
50%
50%
0V
SEL
50%
t
BBM
Figure 2. Break - Before - Make Time
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
©2009-2010 CADEKA Microcircuits LLC www.cadeka.com 7
50%
D
IN+
400mV0V
50%
D
IN-
tPD_RISE+_A
50%
DA
OUT+
50%
DA
OUT-
tPD_FALL-_A
tPD_FALL+_A
tPD_RISE-_A
tPD_RISE+_B
50%
DB
OUT+
50%
DB
OUT-
tPD_FALL-_B
tPD_FALL+_B
tPD_RISE-_B
Figure 3. Rise / Fall Propagation Delay & Skew
Rise-Time Propagation Delay
tPD_RISE+, tPD_RISE-
Fall-Time Propagation Delay
tPD_FALL+, tPD_FALL-
Output Skew Between Switches
tSK(O) = | (tPD_RISE+/-_A) - (tPD_RISE+/-_B) |
OR tSK(O) = | (tPD_FALL+/-_A) - (tPD_FALL+/-_B) |
Output Skew Same Switch
tSK(P) = | (tPD_RISE+_A/B) - (tPD_FALL+_A/B) |
OR tSK(P) = | (tPD_RISE-_A/B) - (tPD_FALL-_A/B) |
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CADEKA reserves the right to make changes to any products and services herein at any time without notice. CADEKA does not assume any
responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in
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copyrights, trademark rights, or any other of the intellectual property rights of CADEKA or of third parties.
Copyright ©2009-2010 by CADEKA Microcircuits LLC. All rights reserved.
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T: 970.663.5452
T: 877.663.5452 (toll free)
Data Sheet
Comlinear CLCUSB42 Low Power, High-Speed (480MSPS) USB 2.0 Analog Switch Rev 1C
Mechanical Dimensions
QFN-10 Package