USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
The MAX14508E–MAX14511E feature +5.5V fault
protection on COM1 and COM2, making these devices
compliant with the USB 2.0 fault-protection specification.
The MAX14510E/MAX14511E feature a VBUS detection
input (VB) to automatically switch to the USB signal path
upon detection of a valid VBUS signal. The MAX14508E/
MAX14510E feature internal shunt resistors on the audio
path to reduce clicks and pops heard at the output. The
MAX14508E/MAX14509E/MAX14509AE have an enable
input (EN) to reduce supply current and set all channels
to high impedance when driven low.
●● Single +2.7V to +5.0V Supply Voltage
●● Low 12μA Supply Current
●● -3dB Bandwidth: 950MHz (typ)
●● Low 2.4Ω (typ) On-Resistance
●● Low 20mΩ (typ) RON Flatness
●● THD+N: 0.05%
●● COM Analog Inputs Fault Protected Against Shorts
to +5.5V (MAX14508E/MAX14509E/MAX14510E/
MAX14511E)
●● Internal Shunt Resistors for Click-and-Pop Reduction
(MAX14508E/MAX14510E)
●● VBUS Detection for Automatic Switch Path Selection
(MAX14510E/MAX14511E)
●● Space-Saving Package: 10-Pin, 1.4mm x 1.8mm
UTQFN
Pin Configurations
TOP VIEW
The MAX14508E–MAX14511E/MAX14509AE are available
in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package,
and operate over the -40°C to +85°C temperature range.
CB
8
EN
9
UNC2
10
6
1
Cell Phones
MP3 Players
Notebook Computers
PDAs
2
5
VCC
4
GND
3
ANO1
5
VCC
4
GND
3
ANO1
Typical Operating Circuit appears at end of data sheet.
VB
9
UNC2
10
COM1
8
7
6
MAX14510E/
MAX14511E
1
2
UNC1
AOR
COM2
UTQFN
ANO2
●●
●●
●●
●●
7
MAX14508E/
MAX14509E/
MAX14509AE
UNC1
Applications
COM1
The MAX14508E–MAX14511E/MAX14509AE high-ESDprotected DPDT switches multiplex Hi-Speed (480Mbps)
USB and analog signals such as AC-coupled audio or
video. These devices combine the low on-capacitance
(CON) and low on-resistance (RON) necessary for highperformance switching applications in portable electronics,
and include an internal negative supply to pass audio
signals that swing below ground (down to VCC - 5.0V).
The MAX14508E–MAX14511E/MAX14509AE also handle
USB low-/full-speed signaling and operate from a +2.7V
to +5.0V supply.
Benefits and Features
COM2
General Description
ANO2
MAX14508E–MAX14511E/
MAX14509AE
UTQFN
Ordering Information/Selector Guide
PIN-PACKAGE
VBUS DETECTION/
ENABLE LINE
FAULT PROTECTION
SHUNT RESISTORS
TOP
MARK
MAX14508EEVB+
10 Ultra-Thin QFN
Enable
Yes
Yes
AAH
MAX14509EEVB+*
10 Ultra-Thin QFN
Enable
Yes
No
AAI
MAX14509AEEVB+
10 Ultra-Thin QFN
Enable
No
No
AAL
MAX14510EEVB+
10 Ultra-Thin QFN
VBUS
Yes
Yes
AAJ
MAX14511EEVB+*
10 Ultra-Thin QFN
VBUS
Yes
No
AAK
PART
Note: All devices operate over the -40°C to +85°C temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Future product—contact factory for availability.
19-4136; Rev 3; 11/17
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Absolute Maximum Ratings
(Voltages referenced to GND.)
VCC, CB, EN, VB, AOR.........................................-0.3V to +6.0V
COM_ (VEN > VIH) (Note 1)...................... (VCC - 5.0V) to +6.0V
COM_ (VEN < VIL)................................................-0.3V to +6.0V
ANO_ (VEN > VIH)..........................(VCC - 5.0V) to (VCC + 0.3V)
ANO_ (VEN < VIL)..................................... -0.3V to (VCC + 0.3V)
UNC_......................................................... -0.3V to (VCC + 0.3V)
Continuous Current into Any Terminal.............................±100mA
Continuous Power Dissipation (TA = +70°C)
10-Pin UTQFN (derate 6.9mW/°C above +70°C)........559mW
Junction-to-Case Thermal Resistance (θJC) (Note 2)
10-Pin UTQFN...........................................................20.1°C/W
Junction-to-Ambient Thermal Resistance (θJA) (Note 2)
10-Pin UTQFN.........................................................143.1°C/W
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature Range............................ -40°C to +150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Note 1: Limits are only for the MAX14508E/MAX14509E/MAX14510E/MAX14511E. For the MAX14509AE (VCC ≥ 2.7V), the limits are
from (VCC - 5.0V) to min of 6.0V or (VCC + 1.0V).
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
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.
Electrical Characteristics
(VCC = +2.7V to +5.0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25°C.) (Note 3)
PARAMETER
Operating Power-Supply
Range
SYMBOL
CONDITIONS
VCC
MIN
TYP
2.7
MAX14508E/MAX14509E/
MAX14509AE, VEN = 0V
VCC = 3.3V
Supply Current
ICC
Power-Supply Rejection Ratio
PSRR
12
(VEN = VCC, VCB = VCC) or
(VAOR = VCC, VVB = 0V)
6
12
µA
1
(VEN = VCC, VCB = 0V) or
(VAOR = 0V, VVB > VVBDET)
6
12
(VEN = VCC, VCB = VCC) or
(VAOR = VCC, VVB = 0V)
6
12
60
VFP
MAX14508E/MAX14509E/MAX14510E/
MAX14511E, VCC = +2.7V to +3.3V,
Figure 1 (Note 4)
Fault-Protection Response
Time
tFP
VCOM = 1V to 5V step, VCC = 3.0V, RUNC_ +
RANO_ = 1kΩ
1.3
Fault-Protection Recovery
Time
tFPR
VCOM = 5V to 1V step, VCC = 3.0V, RUNC_ +
RANO_ = 1kΩ
2
www.maximintegrated.com
VANO_,
VCOM_
V
6
COM Overvoltage Detect
Threshold
Analog Signal Range
5.0
(VEN = VCC, VCB = 0V) or
(VAOR = 0V, VVB > VVBDET)
f = 10kHz, VCC = 3.0 ± 0.3V, RCOM_ = 50Ω
VUNC_
UNITS
1
MAX14508E/MAX14509E/
MAX14509AE, VEN = 0V
VCC = 5.0V
MAX
VCC +
0.8
dB
VCC +
1.6
V
5.0
µs
µs
0
VCC
VEN > VIH
VCC 5.0
VCC
VEN < VIL
0
VCC
V
Maxim Integrated │ 2
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Electrical Characteristics (continued)
(VCC = +2.7V to +5.0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25°C.) (Note 3)
PARAMETER
ANO_ On-Resistance
SYMBOL
RON(ANO_)
CONDITIONS
MIN
TYP
MAX
UNITS
VCC = 3.0V; VANO_ = -1.5V, +1.5V;
ICOM_ = 10mA
2.4
5
Ω
VCC = 3.0V; VUNC_ = 0V, VCC; ICOM_ = 10mA
2.4
5
MAX14509AE, VCC = 2.7V, VCOM_ = 3.6V,
ICOM_ = 10mA
2.4
5
UNC_ On-Resistance
RON(UNC_)
ANO_ On-Resistance Match
Between Channels
∆RON(ANO_)
VCC = 3.0V, VANO_ = 0V, ICOM_ = 10mA
(Notes 5, 6)
0.2
Ω
UNC_ On-Resistance Match
Between Channels
∆RON(UNC_)
VCC = 3.0V, VUNC_ = 0V, ICOM_ = 10mA
(Notes 5, 6)
0.2
Ω
ANO_ On-Resistance
Flatness
RFLAT(ANO_)
VCC = 3.0V, ICOM_ = 10mA, VANO_ = -1.5V to
+1.5V (Note 7)
0.03
0.25
Ω
UNC_ On-Resistance
Flatness
RFLAT(UNC_)
VCC = 3.0V, ICOM_ = 10mA, VUNC_ = 0V to
VCC (Note 7)
0.05
0.5
Ω
RSH
MAX14508E/MAX14510E, IANO_ = 10mA
100
200
Ω
250
1200
kΩ
Shunt Switch Resistance
Ω
AOR Pulldown Resistance
RAOR
UNC_ Off-Leakage Current
IUNC_(OFF)
VCC = 3.0V; VUNC_ = +2.5V, 0V;
VCOM_ = -1.5V, +2.5V; VEN = VCC for
MAX14508E/MAX14509E/MAX14509AE
-10
+10
nA
ANO_ Off-Leakage Current
IANO_(OFF)
MAX14509E/MAX14511E/MAX14509AE;
VCC = 3.0V; VANO_ = +2.5V, 0V;
VCOM = 0V, +2.5V
-10
+10
nA
MAX14508E/MAX14509E/MAX14509AE,
VCC = 3.0V, VEN = 0V, VCOM_ = 3.6V,
VUNC_ = VANO_ = 0V
-10
+10
µA
MAX14508E/MAX14509E/MAX14509AE,
VCC = 3.3V, VEN = 0V, VCOM_ = 0V,
VUNC_ = VANO_ = 0V
-10
+10
nA
VCC = 0V, VCOM_ = 3.6V, VUNC_ = VANO_ = 0V
10
600
µA
+200
COM_ Off-Leakage Current
COM_ On-Leakage Current
Turn-On Time
(Figure 2)
www.maximintegrated.com
ICOM_(OFF)
USB mode
VCC = 3.0V; VANO_ = 0V, 2.5V;
unconnected;
VCOM_ = 0V, 2.5V
-200
Audio mode
VCC = 3.0V; VUNC_ = 0V, 2.5V;
unconnected;
VCOM_ = -1.5V, +2.5V
-200
ICOM_(ON)
tON
nA
+200
(VANO_ = 1.5V, RL = 50Ω,
V = VCC, VCB = 0V to VCC)
ANO_ to COM_, EN
or (VAOR = 0V, VVB = 5.0V to
VCC = 3.0V
0V) or (VVB = 5.0V,
VAOR = 0V to VCC)
14
(VUNC_ = 1.5V, RL = 50Ω,
UNC_ to COM_, VEN = VCC, VCB = VCC to 0V)
VCC = 3.0V
or (VAOR = 0V,
VVB = 0V to 5.0V)
14
60
µs
60
Maxim Integrated │ 3
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Electrical Characteristics (continued)
(VCC = +2.7V to +5.0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25°C.) (Note 3)
PARAMETER
Turn-Off Time
(Figure 2)
Break-Before-Make Time
Delay
SYMBOL
CONDITIONS
TYP
MAX
5
ANO_ from
COM_,
VCC = 3.0V
(VANO_ = 1.5V, RL = 50Ω,
VEN = VCC, VCB = VCC to
0V) or (VAOR = 0V, VVB =
0V to 5.0V) or (VVB = 5.0V,
VAOR = VCC to 0V)
1.4
ANO_ from
COM_,
VCC = 3.0V
(VUNC_ = 1.5V, RL = 50Ω,
VEN = VCC, VCB = 0V to
VCC) or (VAOR = 0V, VVB
= 5.0V to 0V or VVB = 5.0V,
VAOR = 0V to VCC)
0.7
tOFF
tD
MIN
UNITS
µs
RL = 50Ω
5
13.5
µs
Output Skew Same Switch
tSK(P)
Figure 3 (Note 5)
40
ps
Output Skew Between
Switches
tSK(O)
Figure 3 (Note 5)
40
ps
ANO_ Off-Capacitance
CANO_(OFF)
VCOM_ = 0.5VP-P, DC bias = 0V, f = 1MHz
(Note 5)
8
pF
UNC_ Off-Capacitance
CUNC_(OFF)
VCOM_ = 0.5VP-P, DC bias = 0V, f = 240MHz
(Note 5)
3.3
pF
UNC_ to COM_, VCOM_ = 0.5VP-P,
DC bias = 0V, f = 240MHz
8
pF
ANO_ to COM_, VCOM_ = 0.5VP-P,
DC bias = 0V, f = 1MHz
8
pF
On-Capacitance (Note 5)
CCOM(ON)
AC PERFORMANCE
ANO_ -3dB Bandwidth
BWANO_
RS = RL = 50Ω, VANO_ = 0dBm, Figure 4
950
MHz
UNC_ -3dB Bandwidth
BWANC_
RS = RL = 50Ω, VUNC_ = 0dBm, Figure 4
950
MHz
Off-Isolation
VISO
f = 100kHz, VCOM_ = 1VRMS, RS = RL = 50Ω,
Figure 4
-65
dB
Crosstalk
VCT
f = 100kHz, VCOM_ = 1VRMS, RS = RL = 50Ω,
Figure 4 (Note 8)
-70
dB
ANO_ to COM_, f = 20Hz to 20kHz,
VCOM_ = 0.5VP-P, DC bias = 0V, RL = 600Ω
0.05
%
Total Harmonic Distortion
Plus Noise
THD+N
LOGIC INPUT
Input Logic-High
VIH
Input Logic-Low
VIL
Input Leakage Current
IIN
VBUS Detection Threshold
www.maximintegrated.com
VVBDET
1.6
MAX14508E/MAX14509E/MAX14509AE,
VCB = 0V or VCC
V
0.4
V
-1
+1
µA
VCC +
0.2
VCC +
1V
V
Maxim Integrated │ 4
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Electrical Characteristics (continued)
(VCC = +2.7V to +5.0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.0V, TA = +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ESD PROTECTION
All Pins
Human Body Model
±2
kV
COM1, COM2
Human Body Model
±15
kV
Note
Note
Note
Note
Note
3: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
4: The switch turns off for voltages above VFP, protecting downstream circuits in case of a fault condition.
5: Guaranteed by design.
6: ΔRON(MAX) = ABS(RON(CH1) - RON(CH2))
7: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured over specified analog signal ranges.
Note 8: Between two switches.
Test Circuits/Timing Diagrams
MAX14508E/
MAX14509E/
MAX14510E/
MAX14511E
VCC = 3.0V
5V
VCOM_
1V
tFP
tFPR
VFP
VUNC_
VAN0_
1V
0V
Figure 1. Fault Protection
MAX14508E/
MAX14509E/
MAX14510E/
MAX14511E/
MAX14509AE
ANO_
OR UNC_
VIN_
LOGIC
INPUT
COM_
VOUT
RL
VIH
VIL
t OFF
VOUT
SWITCH
OUTPUT
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
VOUT = VIN_
RL + RON
(
50%
CL
CONTROL
LOGIC
INPUT
)
tR < 5ns
tF < 5ns
0V
0.9 x V0UT
0.1 x VOUT
t ON
CONTROL DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 2. Switching Time
www.maximintegrated.com
Maxim Integrated │ 5
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Test Circuits/Timing Diagrams (continued)
VIN+
RS
MAX14508E/
MAX14509E/
MAX14510E/
MAX14511E/
MAX14509AE
UNC1 OR
ANO1
COM1
tPLH = tPLHX OR tPLHY
tPHL = tPHLX OR tPHLY
tSK(O) = |tPLHX - tPLHY| OR |tPHLX - tPHLY|
tSK(P) = |tPLHX - tPHLX| OR |tPLHY - tPHLY|
VOUT+
RL
VIN-
RS
UNC2 OR
ANO2
COM2
CONTROL DEPENDS ON SWITCH CONFIGURATION.
VOUTRL
CONTROL
VIL TO VIH
tINFALL
tINRISE
VCC
90%
VIN+
50%
50%
10%
0V
90%
10%
VCC
VIN-
50%
50%
0V
tOUTRISE
VCC
tPLHX
tOUTFALL
tPHLX
90%
VOUT+
50%
50%
50%
50%
10%
0V
90%
10%
VCC
VOUT0V
tPHLY
tPLHY
Figure 3. Output Skew
www.maximintegrated.com
Maxim Integrated │ 6
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Test Circuits/Timing Diagrams (continued)
COM1
50Ω
MAX14508E/
UNC1 MAX14509E/
MAX14510E/
MAX14511E/ ANO1*
MAX14509AE
50Ω
VIN
VOUT
MEAS
50Ω
NETWORK
ANALYZER
OFF-ISOLATION = 20log
VOUT
VIN
V
ON-LOSS = 20log OUT
VIN
50Ω
REF
V
CROSSTALK = 20log OUT
VIN
50Ω
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" ANO_ OR UNC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND "ON" ANO_ OR UNC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
*FOR CROSSTALK THIS PIN IS ANO2.
UNC2 AND COM2 ARE OPEN.
Figure 4. On-Loss, Off-Isolation, and Crosstalk
www.maximintegrated.com
Maxim Integrated │ 7
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Typical Operating Characteristics
(VCC = 3.0V, TA = +25°C, unless otherwise noted.)
VCC = 5.0V
2.30
2.25
1
2
3
4
2.375
2.350
-2
-1
0
TA = +85°C
2.9
2.7
TA = +25°C
2.5
2.3
TA = -40°C
2.1
1.9
70
0
1
2
3
4
COM_ LEAKAGE CURRENT
vs. TEMPERATURE
VCOM_ = 2.5V
50
COM_ ON-LEAKAGE
30
COM_ OFF-LEAKAGE
10
-40
-15
10
35
60
6.6
MAX14508E-11E/9AE toc03
TA = +85°C
TA = +25°C
6.2
TA = -40°C
6.0
5.8
5.6
5.4
5.2
5.0
85
VEN = VCC
6.4
2.5
3.0
3.5
4.0
4.5
QUIESCENT SUPPLY CURRENT
vs. LOGIC LEVEL
TURN-OFF TIME
vs. SUPPLY VOLTAGE
TURN-ON TIME
vs. SUPPLY VOLTAGE
VEN AND VCB RISING
10
8
6
4
1.6
ANO_ FROM COM_
1.4
1.2
1.0
UNC_ FROM COM_
0.8
0.6
0.4
1
2
LOGIC LEVEL (V)
www.maximintegrated.com
3
0
20
18
16
UNC_ TO COM_
14
5.0
12
10
8
ANO_ TO COM_
6
4
0.2
2
3.6
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
40
20
3.0
SUPPLY VOLTAGE (V)
12
0
2.0
TEMPERATURE (°C)
VEN AND VCB FALLING
14
1.0
MAX14508E-11E/9AE toc09
16
0
VCOM_ (V)
VCC = 5.0V
VEN = VCB
18
1.5
5
VCOM_ (V)
60
-10
3
TURN-OFF TIME (µs)
QUIESCENT SUPPLY CURRENT (µA)
-1
MAX14508E-11E/9AE toc07
-2
20
0
2
0
1.7
1.5
1
TA = -40°C
2.1
1.7
80
LEAKAGE CURRENT (µA)
ON-RESISTANCE (Ω)
MAX14508E-11E/9AE toc04
IANO_ = 10mA
3.1
2.3
VCOM_ (V)
ANO_ ON-RESISTANCE vs. VCOM_
3.3
2.5
1.9
-3
TA = +25°C
2.7
2.275
VCOM_ (V)
3.5
2.9
2.300
2.250
5
VCC = 5.0V
2.325
TURN-ON TIME (µs)
0
2.400
MAX14508E-11E/9AE toc08
2.20
2.425
TA = +85°C
3.1
QUIESCENT SUPPLY CURRENT (µA)
2.35
VCC = 2.7V
IUNC_ = 10mA
3.3
MAX14508E-11E/9AE toc06
2.40
2.450
UNC_ ON-RESISTANCE vs. VCOM_
3.5
ON-RESISTANCE (Ω)
2.45
IANO_ = 10mA
2.475
MAX14508E-11E/9AE toc05
2.50
MAX14508E-11E/9AE toc02
VCC = 2.7V
ANO_ ON-RESISTANCE vs. VCOM_
2.500
ON-RESISTANCE (Ω)
IUNC_ = 10mA
2.55
ON-RESISTANCE (Ω)
MAX14508E-11E/9AE toc01
UNC_ ON-RESISTANCE vs. VCOM_
2.60
2
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
4.5
5.0
0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
Maxim Integrated │ 8
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Typical Operating Characteristics (continued)
(VCC = 3.0V, TA = +25°C, unless otherwise noted.)
EYE DIAGRAM
FREQUENCY RESPONSE
10
MAX14508E-11E/9AE toc12
0
-10
THD+N (%)
MAGNITUDE (dB)
0.1
0.01
ANO_ ON-LOSS
-20
-30
OFF-ISOLATION
-40
-50
0.001
20
200
2000
20000
USB 2.0
HI-SPEED
TRANSMIT
TEMPLATE
CROSSTALK
-60
RL = 600Ω
UNC_ ON-LOSS
MAX14508E-11E/9AE toc11
1
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
toc10
-70
-80
1
10
100
1,000
FREQUENCY (MHz)
FREQUENCY (Hz)
Pin Description
PIN
MAX14508E/
MAX14509E/
MAX14509AEE
MAX14510E/
MAX14511E
NAME
1
1
UNC1
USB Input 1. Normally closed terminal for switch 1.
2
2
ANO2
Audio Input 2. Normally open terminal for switch 2.
3
3
ANO1
Audio Input 1. Normally open terminal for switch 1.
4
4
GND
Ground
5
5
VCC
Positive Supply-Voltage Input. Bypass VCC to GND with a 0.1µF capacitor as
close to the device as possible.
6
6
COM1
Common Terminal for Switch 1
7
7
COM2
Common Terminal for Switch 2
8
—
CB
Digital Control Input. Drive CB low to connect COM_ to UNC_. Drive CB high to
connect COM_ to ANO_.
9
—
EN
Active-High Enable Input. Drive EN high for normal operation. Drive EN low to put
switches in high impedance. Do not connect negative signals to ANO_ or
COM_ when EN is low.
10
10
UNC2
USB Input 2. Normally closed terminal for switch 2.
—
8
AOR
Audio Override Input. Drive AOR low to have VB control the switch. Drive AOR
high to connect COM_ to ANO_. AOR has an internal pulldown resistor to GND.
—
9
VB
www.maximintegrated.com
FUNCTION
VBUS Detection Input. If VVB ≥ VVBDET, COM_ connects to UNC_.
Otherwise, COM_ connects to ANO_.
Maxim Integrated │ 9
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
MAX14508E/MAX14509E/MAX14509AE Functional Diagrams/Truth Table
MAX14509E/
MAX14509AE
MAX14508E
UNC1
UNC1
COM1
COM1
UNC2
UNC2
COM2
ANO1
COM2
ANO1
ANO2
ANO2
EN
EN
CB
MAX14508E/MAX14509E/MAX14509AE
CB
MAX14508E
EN
CB
UNC_
ANO_
COM_
ANO_ SHUNT
1
0
On
Off
–
On
1
1
Off
On
–
Off
0
0
Off
Off
Hi-Z
On
0
1
Off
Off
Hi-Z
Off
MAX14510E/MAX14511E Functional Diagrams/Truth Table
MAX14510E
MAX14511E
UNC1
UNC1
COM1
UNC2
COM1
UNC2
COM2
ANO1
ANO2
COM2
ANO1
ANO2
VB
VVBDET
VB
VVBDET
AOR
AOR
MAX14510E/MAX14511E
MAX14510E
VB
AOR
UNC_
ANO_
ANO_ SHUNT
> VVBDET
0
On
Off
On
< VVBDET
0
Off
On
Off
X
1
Off
On
Off
X = Don’t Care
www.maximintegrated.com
Maxim Integrated │ 10
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Detailed Description
Digital Control Input (CB)
The MAX14508E–MAX14511E/MAX14509AE are highESD-protected single DPDT switches that operate from
a +2.7V to +5.0V supply and are designed to multiplex
USB 2.0 Hi-Speed signals and AC-coupled analog signals.
These switches combine the low on-capacitance (CON)
and low on-resistance (RON) necessary for highperformance switching applications. These devices meet
the requirements for USB low-speed and full-speed signaling.
The negative signal capability of the analog channel
allows signals below ground to pass through without distortion.
Analog Signal Levels
The MAX14508E–MAX14511E/MAX14509AE are bidirectional,
allowing ANO_, UNC_, and COM_ to be configured as
either inputs or outputs. Note that UNC_ and ANO_ are
only protected against ESD up to ±2kV (Human Body
Model) and may require additional ESD protection if used
as outputs. These devices feature a charge pump that
generates a negative supply to allow analog signals as
low as VCC - 5.0V to pass through ANO_. This allows
AC-coupled signals that drop below ground to pass when
operating from a single power supply. The negative charge
pump is controlled by the enable line and the output of the
COM_ fault protection circuit. The negative charge pump
is active when EN is high and VCOM_ < VFP. Note that if
the fault protection is activated by a COM_ voltage greater
than VFP, there must not be a negative voltage attached
to the ANO_ inputs. For the MAX14508E/MAX14509E/
MAX14509AE connect negative signals to ANO_ or
COM_ only when EN is driven high.
Overvoltage Fault Protection
The MAX14508E–MAX14511E feature overvoltage
fault protection on COM_, allowing compliance with
USB requirements for voltage levels. Fault protection is
triggered if the voltage applied to COM_ rises above VFP,
protecting the switch and USB transceiver from damaging
voltage levels.
VBUS Detection Input
The MAX14510E/MAX14511E feature a VBUS detection
input (VB) that connects COM_ to UNC_ when VVB
exceeds the VBUS detection threshold (VVBDET). For
applications where VBUS is always present, drive the
Audio Override Input (AOR) high to connect ANO_ to
COM_ (see the MAX14510E/MAX14511E Functional
Diagrams/Truth Table). Drive AOR low to have VB
control the switch position. Drive AOR rail-to-rail to
minimize power consumption.
www.maximintegrated.com
The MAX14508E/MAX14509E/MAX14509AE provide a
single-bit control logic input, CB. CB controls the switch
position as shown in the MAX14508E/MAX14509E/
MAX14509AE Functional Diagrams/Truth Table. Drive
CB rail-to-rail to minimize power consumption.
Enable Input (EN)
The MAX14508E/MAX14509E/MAX14509AE feature a
shutdown mode that reduces the supply current to less
than 10nA and places the switches in high impedance.
Drive EN low to place the devices in shutdown mode.
Drive EN high for normal operation.
Click-and-Pop Suppression
The switched 100Ω shunt resistors on the MAX14508E/
MAX14510E automatically discharge any capacitance
at the ANO_ terminals when they are unconnected from
COM_. This reduces audio click-and-pop sounds that may
occur when switching between USB and audio sources.
Applications Information
Extended ESD Protection
ESD-protection structures are incorporated on all pins
to protect against electrostatic discharges up to ±2kV
(Human Body Model) encountered during handling and
assembly. COM1 and COM2 are further protected against
ESD up to ±15kV (Human Body Model) without damage.
The ESD structures withstand high ESD both in
normal operation and when the device is powered
down. After an ESD event, the MAX14508E–MAX14511E/
MAX14509AE continue to function without latchup.
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents test
setup, test methodology, and test results.
Human Body Model
Figure 5 shows the Human Body Model. Figure 6 shows
the current waveform it generates when discharged into a
low impedance. This model consists of a 100pF capacitor
charged to the ESD voltage of interest that is then discharged into the device through a 1.5kΩ resistor.
Layout
USB Hi-Speed requires careful PCB layout with 45Ω
single-ended/90Ω differential controlled-impedance
matched traces of equal lengths. Ensure that bypass
capacitors are as close to the device as possible. Use
large ground planes where possible.
Maxim Integrated │ 11
MAX14508E–MAX14511E/
MAX14509AE
RC
1MΩ
CHARGE-CURRENTLIMIT RESISTOR
HIGHVOLTAGE
DC
SOURCE
Cs
100pF
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
RD
1500Ω
IP 100%
90%
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
Ir
AMPERES
DEVICE
UNDER
TEST
36.8%
10%
0
0
tRL
TIME
tDL
CURRENT WAVEFORM
Figure 5. Human Body ESD Test Model
Figure 6. Human Body Current Waveform
Power-Supply Sequencing
Proper power-supply sequencing is recommended for all
devices. Apply VCC before applying analog signals, especially if the analog signal is not current limited.
Caution: Do not exceed the absolute maximum ratings because stresses beyond the listed ratings may
cause permanent damage to the device.
www.maximintegrated.com
Maxim Integrated │ 12
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Typical Operating Circuit
3.0V
0.1µF
VCC
MAX14510E/
MAX14511E
UNC1
HIGH-SPEED
USB
TRANSCEIVER
COM1
COMBINATION
USB AND AUDIO
CONNECTOR
UNC2
COM2
ANO1
AUDIO
AMPLIFIER
ANO2
MAX14510E
ONLY
VB
VVBDET
VBUS
GND
Chip Information
PROCESS: BiCMOS
www.maximintegrated.com
AOR
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE TYPE
PACKAGE CODE
OUTLINE NO.
10 Ultra-Thin QFN
V101A1CN+1
21-0028
Maxim Integrated │ 13
MAX14508E–MAX14511E/
MAX14509AE
USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
0
5/08
Initial release
1
3/09
Released the MAX14510E, updated Absolute Maximum Ratings, Electrical
Characteristics, Figure 4, and Layout section.
2
5/17
Updated Total Harmonic Distortion Plus Noise typical value in Electrical
Characteristics table and updated TOC10 in Typical Operating Characteristics
section, corrected THD+N, TOC10, and packaging code
3
11/17
Updated Electrical Characteristics table
DESCRIPTION
—
1, 2, 3, 5, 8, 12
4, 10, 14
2, 4
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2017 Maxim Integrated Products, Inc. │ 14
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