MAXIM MAX14508E, MAX14511E, MAX14509AE User Manual

General Description

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 V

CC

-

5.0V). The MAX14508E–MAX14511E/MAX14509AE also
handle USB low-/full-speed signaling and operate from
a +2.7V to +5.0V supply.

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.

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.

Applications

Cell Phones

MP3 Players

Notebook Computers

PDAs

Features

♦ 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) R

ON

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

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

________________________________________________________________

Maxim Integrated Products

1

Ordering Information/Selector Guide

19-4136; Rev 1; 3/09

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

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.

Typical Operating Circuit appears at end of data sheet.

Pin Configurations

5

4

3

8

9

10

MAX14510E/
MAX14511E

7 6

1 2

V

CC

GND

ANO1

UNC2

AOR

VB

UTQFN

COM1

COM2

ANO2

UNC1

TOP VIEW

UNC2

CB

8

9

EN

10

COM2

7 6

MAX14508E/
MAX14509E/
MAX14509AE

1 2

UNC1

UTQFN

COM1

ANO2

5

V

CC

4

GND

3

ANO1

PART PIN-PACKAGE

VBUS DETECTION/

ENABLE LINE

FAULT PROTECTION SHUNT RESISTORS

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

TOP

MARK

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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)

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.

(Voltages referenced to GND.)
V

CC

, CB, EN, VB, AOR..........................................-0.3V to +6.0V

COM_ (V

EN

> VIH) (Note 1) ........................(VCC- 5.0V) to +6.0V

COM_ (V

EN

< VIL)..................................................-0.3V to +6.0V

ANO_ (V

EN

> VIH)............................(VCC- 5.0V) to (VCC+ 0.3V)

ANO_ (V

EN

< VIL) .......................................-0.3V to (VCC+ 0.3V)

UNC_..........................................................-0.3V to (V

CC

+ 0.3V)

Continuous Current into Any Terminal............................±100mA

Continuous Power Dissipation (T

A

= +70°C)

10-Pin UTQFN (derate 6.9mW/°C above +70°C).........559mW

Junction-to-Case Thermal Resistance (

θ

JC

) (Note 2)

10-Pin UTQFN ...........................................................20.1°C/W

Junction-to-Ambient Thermal Resistance (

θ

JA

) (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 (V

CC

- 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.maxim-ic.com/thermal-tutorial

.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Operating Power-Supply

V

CC

MAX14508E/MAX14509E/
MAX14509AE, V

(VEN = VCC, VCB = 0V) or
(V

= 0V, VVB = V

AOR

= VCC, VCB = VCC) or

(V

EN

(V

= VCC, VVB = 0V)

AOR

MAX14508E/MAX14509E/

Supply Current I

VCC = 3.3V

CC

MAX14509AE, V

VCC = 5.0V

(VEN = VCC, VCB = 0V) or
(V

= 0V, VVB > V

AOR

= VCC, VCB = VCC) or

(V

EN

(V

= VCC, VVB = 0V)

AOR

Power-Supply Rejection Ratio PSRR f = 10kHz, VCC = 3.0 ± 0.3V, R

COM Overvoltage Detect
Threshold

Fault-Protection Response
Time

Fault-Protection Recovery
Time

Analog Signal Range

V

t

V

UNC_

V

ANO_

V

COM_

FP

t

FP

FPR

MAX14508E/MAX14509E/MAX14510E/
MAX14511E, V

= +2.7V to +3.3V,

CC

Figure 1 (Note 4)

V

= 1V to 5V step, VCC = 3.0V, R

COM

= 1kΩ

R

ANO_

V

= 5V to 1V step, VCC = 3.0V, R

COM

= 1kΩ

R

ANO_

VEN > V

VEN < V

IH

IL

,

= 0V

EN

VBDET

= 0V

EN

VBDET

= 50Ω 60 dB

COM_

UNC_

UNC_

2.7 5.0 V

)

)

V

CC

0.8

+

+

0V

VCC -

5.0

0V

1

612

612

1

612

612

+

VCC +

1.6

1.3 5.0 µs

2µs

CC

V

CC

CC

µA

V

V

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

_______________________________________________________________________________________ 3

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 2)

)

)

)

)

)

)

)

)

)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ANO_ On-Resistance R

UNC_ On-Resistance R

ANO_ On-Resistance Match
Between Channels

UNC_ On-Resistance Match
Between Channels

ANO_ On-Resistance Flatness R

UNC_ On-Resistance Flatness R

ON(ANO_

ON(UNC_

ΔR

ON(ANO_

ΔR

ON(UNC_

FLAT(ANO_

FLAT(UNC_

Shunt Switch Resistance R

AOR Pulldown Resistance R

UNC_ Off-Leakage Current I

ANO_ Off-Leakage Current I

COM_ Off-Leakage Current I

COM_ On-Leakage Current I

UNC_(OFF

ANO_(OFF

COM_(OFF

COM_(ON

Turn-On Time
(Figure 2)

SH

AOR

t

ON

VCC = 3.0V; V
I

= 10mA

COM_

VCC = 3.0V; V

MAX14509AE, VCC = 2.7V, V

= 10mA

I

COM_

VCC = 3.0V, V
(Notes 5, 6)

VCC = 3.0V, V
(Notes 5, 6)

VCC = 3.0V, I
+1.5V (Note 7)

V

= 3.0V , I

C C

( N ote 7)

V

C C

MAX14508E/MAX14510E, I

VCC = 3.0V; V

= -1.5V, +2.5V; VEN = VCC for

V

COM_

MAX14508E/MAX14509E/MAX14509AE

MAX14509E/MAX14511E/MAX14509AE;

= 3.0V; V

V

CC

+2.5V

MAX14508E/MAX14509E/MAX14509AE,

= 3.0V, VEN = 0V, V

V

CC

V

= V

UNC_

ANO_

MAX14508E/MAX14509E/MAX14509AE,

= 3.3V, VEN = 0V, V

V

CC

V

= V

UNC_

V

C C

ANO_

= 0V , V

USB mode

Audio mode

ANO_ to COM_,

= 3.0V

V

CC

UNC_ to COM_,

= 3.0V

V

CC

ANO_

UNC_

ANO_

UNC_

COM_

C OM _

UNC_

ANO_

C OM _

= 0V

= 0V

= 3.6V , V

= -1.5V, +1.5V;

= 0V, VCC; I

= 0V, I

= 0V, I

= 10mA, V

= 10m A, V

COM_

COM_

= 10mA

COM_

= 10mA

COM_

ANO_

U N C _

= 10mA 100 200 Ω

ANO_

= +2.5V, 0V;

= +2.5V, 0V; V

= 3.6V,

COM_

= 0V,

COM_

= V

U N C _

= 3.0V; V

V

CC

2.5V; unconnected;
V

= 0V, 2.5V

COM_

= 3.0V; V

V

CC

2.5V; unconnected;
V

= -1.5V, +2.5V

COM_

( V

= 1.5V , RL = 50Ω ,

A N O_

= V

C C

) or ( V

, V

A OR

C B

V

E N

V

C C

= 5.0V to 0V ) or ( V

5.0V , V

(V

UNC_

50Ω, V
V

CC

0V, V

= 0V to V

A OR

= 1.5V, RL =

= VCC, VCB =

EN

to 0V) or (V

= 0V to 5.0V)

VB

2.4 5 Ω

= 10mA 2.4 5

= 3.6V,

= -1.5V to

= 0V to

2.4 5

0.03 0.25 Ω

0.05 0.5 Ω

250 1200 kΩ

-10 +10 nA

COM

= 0V,

-10 +10 nA

-10 +10 µA

-10 +10 nA

= 0V 10 600 µA

A N O_

= 0V,

ANO_

-200 +200

= 0V,

UNC_

-200 +200

= 0V to

= 0V , V

V B

=

AOR

=

C C

V B

)

14 60

14 60

0.2 Ω

0.2 Ω

Ω

nA

µs

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

4 _______________________________________________________________________________________

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 2)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

(V

= 1.5V, RL = 50Ω,
ANO_ from
COM_,
V

= 3.0V

CC

Turn-Off Time
(Figure 2)

t

OFF

UNC_ from
COM_,
V

= 3.0V

CC

Break-Before-Make Time Delay t

Output Skew Same Switch t

Output Skew Between Switches t

ANO_ Off-Capacitance C

UNC_ Off-Capacitance C

AN O_( OFF)

U N C_( OF F)

SK(P)

SK(O)

RL = 50Ω 13.5 µs

D

Figure 3 (Note 5) 40 ps

Figure 3 (Note 5) 40 ps

V

= 0.5V

COM_

(Note 5)

V

= 0.5V

COM_

(Note 5)

U N C _ to C OM _, V

On-Capacitance ( N ote 5) C

COM(ON

D C b i as = 0V , f = 240M H z

AN O _ to C OM _, V
D C b i as = 0V , f = 1M H z

AC PERFORMANCE

ANO_ -3dB Bandwidth BWA

UNC_ -3dB Bandwidth BWA

Off-Isolation V

Crosstalk V

Total Harmonic Distortion
Plus Noise

NO_RS

NC_RS

ISO

CT

THD+N

= RL = 50Ω, V

= RL = 50Ω, V

f = 100kHz, V
Figure 4

f = 100kHz, V
Figure 4 (Note 8)

ANO_ to COM_, f = 20Hz to 20kHz,

= 0.5V

V

COM_

LOGIC INPUT

Input Logic-High V

Input Logic-Low V

Input Leakage Current I

IH

IL

IN

MAX14508E/MAX14509E/MAX14509AE,
V

= 0V or V

CB

ANO_

V

= VCC, VCB = VCC to

EN

0V) or (V
0V to 5.0V) or (V
V

AOR

( V

U N C _

= V

V

E N

V

) or ( V

C C

5.0V to 0V or V
V

A OR

, DC bias = 0V, f = 1MHz

P-P

, DC bias = 0V, f = 240MHz

P-P

= 0.5V

C OM _

= 0.5V

C OM _

= 0dBm, Figure 4 950 MHz

ANO_

= 0dBm, Figure 4 950 MHz

UNC_

= 1V

COM_

= 1V

COM_

, DC bias = 0V, RL = 600Ω

P-P

CC

= 0V, VVB =

AOR

VB

= VCC to 0V)

= 1.5V , RL = 50Ω ,

, V

= 0V to

C C

C B

= 0V , V

A OR

= 5.0V ,

= 0V to V

RMS

RMS

V B

C C

,

P - P

,

P - P

, RS = RL = 50Ω,

, RS = RL = 50Ω,

= 5.0V,

V B

)

1.4 5

=

0.7 5

8pF

3.3 pF

8pF

8pF

-65 dB

-70 dB

0.05 %

1.6 V

-1 +1 µA

µs

0.4 V

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

_______________________________________________________________________________________ 5

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 2)

Note 3: All devices are 100% production tested at TA= +25°C. All temperature limits are guaranteed by design.
Note 4: The switch turns off for voltages above V

FP

, protecting downstream circuits in case of a fault condition.

Note 5: Guaranteed by design.
Note 6: ΔR

ON(MAX)

= ABS(R

ON(CH1)

- R

ON(CH2)

)

Note 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.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ESD PROTECTION

All Pins Human Body Model ±2 kV

COM1, COM2 Human Body Model ±15 kV

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

6 _______________________________________________________________________________________

Test Circuits/Timing Diagrams

Figure 2. Switching Time

Figure 1. Fault Protection

MAX14508E/
MAX14509E/
MAX14510E/
MAX14511E

MAX14508E/
MAX14509E/
MAX14510E/
MAX14511E/

MAX14509AE

LOGIC
INPUT

V

IN_

ANO_
OR UNC_

CONTROL

VCC = 3.0V

V

COM_

V

UNC_

V

AN0_

COM_

5V

1V

t

FP

V

FP

R

L

C

t

FPR

1V
0V

V

IH

LOGIC
INPUT

V

V

OUT

L

SWITCH

OUTPUT

IL

0V

V

50%

t

ON

OUT

0.9 x V

0UT

tR < 5ns
t

< 5ns

F

t

OFF

0.1 x V

OUT

CL INCLUDES FIXTURE AND STRAY CAPACITANCE.

V
RL + R

OUT

= V

IN_ (

R

L

)

ON

CONTROL DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

_______________________________________________________________________________________ 7

Test Circuits/Timing Diagrams (continued)

MAX14508E/

Figure 3. Output Skew

MAX14509E/
MAX14510E/
MAX14511E/

MAX14509AE

UNC1 OR

R

S

V

IN+

V

IN-

V

CC

V

IN+

0V

ANO1

UNC2 OR

R

S

ANO2

CONTROL

50%

VIL TO V

COM1

COM2

IH

50%

t

= t

V

R

L

R

L

PLH

OUT+

t

= t

PHL

t

= |t

SK(O)

= |t

t

SK(P)

CONTROL DEPENDS ON SWITCH CONFIGURATION.

V

OUT-

t

INRISE

90%

10% 10%

PLHX

PHLX

PLHX
PLHX

OR t
OR t

- t

- t

PLHY

PHLY
PLHY
PHLX

90%

| OR |t

| OR |t

PHLX
PLHY

t

INFALL

- t

|

PHLY

- t

|

PHLY

V

CC

V

IN-

0V

V

CC

V

OUT+

0V

V

CC

V

OUT-

0V

t

t

PLHX

PHLY

50%

50%

50%

t

t

PLHY

PHLX

50%

50%

50%

t

OUTRISE

90%

10% 10%

90%

t

OUTFALL

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

8 _______________________________________________________________________________________

Test Circuits/Timing Diagrams (continued)

Figure 4. On-Loss, Off-Isolation, and Crosstalk

OFF-ISOLATION = 20log

ON-LOSS = 20log

CROSSTALK = 20log

50Ω

UNC1

MAX14508E/
MAX14509E/
MAX14510E/
MAX14511E/

MAX14509AE

COM1

ANO1*

NETWORK

ANALYZER

V

IN

V

OUT

50Ω

MEAS REF

50Ω 50Ω

50Ω

V

OUT

V

IN

V

OUT

V

IN

V

OUT

V

IN

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.

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

_______________________________________________________________________________________ 9

Typical Operating Characteristics

(VCC= 3.0V, TA= +25°C, unless otherwise noted.)

UNC_ ON-RESISTANCE vs. V

2.60
I

= 10mA

UNC_

2.55

2.50

2.45

2.40

2.35

ON-RESISTANCE (Ω)

2.30

2.25

2.20

012345

VCC = 2.7V

VCC = 5.0V

V

(V)

COM_

ANO_ ON-RESISTANCE vs. V

3.5
I

= 10mA

ANO_

3.3

3.1

2.9

2.7

2.5

2.3

ON-RESISTANCE (Ω)

2.1

1.9

1.7

1.5

-2 0-1 1 2 3

TA = +85°C

TA = +25°C

TA = -40°C

V

(V)

COM_

COM_

MAX14508E-11E/9AE toc01

ON-RESISTANCE (Ω)

COM_

MAX14508E-11E/9AE toc04

QUIESCENT SUPPLY CURRENT

vs. LOGIC LEVEL

20

VCC = 5.0V

18

= V

V

EN

16

14

12

10

8

6

4

QUIESCENT SUPPLY CURRENT (μA)

2

0

CB

VEN AND VCB FALLING

VEN AND VCB RISING

0123

LOGIC LEVEL (V)

MAX14508E-11E/9AE toc07

TURN-OFF TIME (μs)

ANO_ ON-RESISTANCE vs. V

2.500
I

= 10mA

ANO_

2.475

2.450

2.425

2.400

2.375

2.350

2.325

2.300

2.275

2.250

-3 -1 0-2 12345

COM_ LEAKAGE CURRENT

80

V

= 2.5V

COM_

70

60

50

40

30

20

LEAKAGE CURRENT (μA)

10

0

-10

-40 -15 10 35 60 85

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

2.5 3.0 3.5 4.0 4.5 5.0

VCC = 2.7V

VCC = 5.0V

V

(V)

COM_

vs. TEMPERATURE

COM_ ON-LEAKAGE

COM_ OFF-LEAKAGE

TEMPERATURE (°C)

TURN-OFF TIME

vs. SUPPLY VOLTAGE

ANO_ FROM COM_

UNC_ FROM COM_

SUPPLY VOLTAGE (V)

COM_

3.5

3.3

3.1

2.9

MAX14508E-11E/9AE toc02

2.7

2.5

2.3

ON-RESISTANCE (Ω)

2.1

1.9

1.7

1.5

6.6

6.4

6.2

MAX14508E-11E/9AE toc05

6.0

5.8

5.6

5.4

QUIESCENT SUPPLY CURRENT (μA)

5.2

5.0

MAX14508E-11E/9AE toc08

TURN-ON TIME (μs)

UNC_ ON-RESISTANCE vs. V

I

= 10mA

UNC_

0 3.02.01.0 3.6

V

COM_

TA = +85°C

TA = +25°C

TA = -40°C

(V)

COM_

QUIESCENT SUPPLY CURRENT

vs. SUPPLY VOLTAGE

VEN = V

CC

TA = +85°C

TA = +25°C

TA = -40°C

2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)

TURN-ON TIME

vs. SUPPLY VOLTAGE

20

18

16

14

12

10

8

ANO_ TO COM_

6

4

2

0

2.5 3.53.0 4.0 4.5 5.0

UNC_ TO COM_

SUPPLY VOLTAGE (V)

MAX14508E-11E/9AE toc03

MAX14508E-11E/9AE toc06

MAX14508E-11E/9AE toc09

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

10 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC= 3.0V, TA= +25°C, unless otherwise noted.)

0.01 0.1 10 1001

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. FREQUENCY

FREQUENCY (MHz)

THD+N (%)

10

0.1

0.01

0.001

0.0001

MAX14508E-11E/9AE toc10

RL = 600Ω

Pin Description

10

0

-10

-20

-30

-40

MAGNITUDE (dB)

-50

-60

-70

-80

FREQUENCY RESPONSE

ANO_ ON-LOSS UNC_ ON-LOSS

OFF-ISOLATION

1 1,00010010

FREQUENCY (MHz)

MAX14508E-11E/9AE toc11

CROSSTALK

PIN

MAX14508E/
MAX14509E/

MAX14509AE

MAX14510E/

MAX14511E

NAME FUNCTION

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

55V

Positive Supply-Voltage Input. Bypass VCC to GND with a 0.1µF capacitor as close to

CC

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_.

Active-High Enable Input. Drive EN high for normal operation. Drive EN low to put

9—EN

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

—9VB

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.

VBUS Detection Input. If V

VB

≥ V

, COM_ connects to UNC_. Otherwise, COM_

VBDET

connects to ANO_.

EYE DIAGRAM

HI-SPEED
TRANSMIT
TEMPLATE

MAX14508E-11E/9AE toc12

USB 2.0

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

______________________________________________________________________________________ 11

MAX14508E/MAX14509E/MAX14509AE Functional Diagrams/Truth Table

MAX14510E/MAX14511E Functional Diagrams/Truth Table

X = Don’t Care

UNC1

UNC2

ANO1

ANO2

MAX14508E

EN

CB

COM1

COM2

UNC1

UNC2

ANO1

ANO2

EN

MAX14508E/MAX14509E/MAX14509AE 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

MAX14509E/
MAX14509AE

CB

COM1

COM2

UNC1

UNC2

ANO1

ANO2

MAX14510E

V

VBDET

AOR

COM1

COM2

VB

UNC1

UNC2

ANO1

ANO2

MAX14511E

COM1

COM2

VB

V

VBDET

AOR

MAX14510E/MAX14511E MAX14510E

VB AOR UNC_ ANO_ ANO_ SHUNT

> V

< V

VBDET

VBDET

0 On Off On

0 Off On Off

X 1 Off On Off

Detailed Description

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
(C

ON

) and low on-resistance (RON) necessary for high­performance switching applications. These devices
meet the requirements for USB low-speed and full­speed 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 V

COM_

< 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 V

VB

exceeds the VBUS detection threshold (V

VBDET

). 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.

Digital Control Input (CB)

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.

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

12 ______________________________________________________________________________________

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

______________________________________________________________________________________ 13

Power-Supply Sequencing

Caution: Do not exceed the absolute maximum rat­ings because stresses beyond the listed ratings
may cause permanent damage to the device.

Proper power-supply sequencing is recommended for
all devices. Apply V

CC

before applying analog signals,

especially if the analog signal is not current limited.

Figure 5. Human Body ESD Test Model

Figure 6. Human Body Current Waveform

R

D

1500Ω

DISCHARGE
RESISTANCE

STORAGE
CAPACITOR

DEVICE
UNDER

TEST

HIGH-

VOLTAGE

DC

SOURCE

R

C

1MΩ

CHARGE-CURRENT-

LIMIT RESISTOR

C

s

100pF

PEAK-TO-PEAK RINGING

I

r

(NOT DRAWN TO SCALE)

AMPERES

IP 100%

90%

36.8%

10%

0

0

t

RL

TIME

t

DL

CURRENT WAVEFORM

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches
with Negative Signal Capability

14 ______________________________________________________________________________________

Typical Operating Circuit

GND

AOR

UNC2

UNC1

MAX14510E/

MAX14511E

V

CC

0.1μF

3.0V

V

VBDET

HIGH-SPEED

USB

TRANSCEIVER

COMBINATION

USB AND AUDIO

CONNECTOR

AUDIO

AMPLIFIER

MAX14510E

ONLY

ANO1

ANO2

VBUS

VB

COM1

COM2

Package Information

For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages

.

PACKAGE TYPE PACKAGE CODE DOCUMENT NO.

10 Ultra-Thin QFN V101A1CN-1

21-0028

Chip Information

PROCESS: BiCMOS

MAX14508E–MAX14511E/MAX14509AE

USB 2.0 Hi-Speed and Audio Switches

with Negative Signal Capability

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________

15

© 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

Revision History

REVISION

REVISION

DATE

DESCRIPTION

PAGES

CHANGED

0 5/08 Initial release —

1 3/09

Released the MAX14510E, updated Absolute Maximum Ratings, Electrical
Characteristics, Figure 4, and Layout section.

1, 2, 3, 5, 8, 12

NUMBER