MAX14585 Maxim, MAX14585 Datasheet

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MAX14585

Manufacturer Part Number
MAX14585
Description
The MAX14585/MAX14585A high-ESD-protected double-pole/double-throw (DPDT) switches multiplex Hi-Speed (480Mbps) USB and analog signals such as AC-coupled audio or video
Manufacturer
Maxim
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MAX14585AEVB+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX14585/MAX14585A high-ESD-protected double-
pole/double-throw (DPDT) switches multiplex Hi-Speed
(480Mbps) USB and analog signals such as AC-coupled
audio or video. These devices combine the low on-
capacitance (C
sary for high-performance switching applications in por-
table electronics and include an internal negative supply
to pass audio signals that swing below ground down to
-1.8V. The devices also handle USB low-/full-speed sig-
naling and operate from a 2.7V to 5.5V supply.
The devices feature a V
handle voltage up to 28V to automatically switch to the
USB signal path upon detection of a valid V
> V
can supply power to the part if V
MAX14585 features internal shunt resistors on the audio
path to reduce clicks and pops heard at the output.
The MAX14585/MAX14585A are available in a space-
saving, 10-pin, 1.4mm x 1.8mm UTQFN package and
operate over the -40NC to +85NC temperature range.
Capability and High-Voltage-Tolerable V
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.
Hi-Speed USB and Audio Switches with Negative Signal
VBDET
Cell Phones
PDAs and Handheld Devices
Tablet PCs
). In a dead battery situation, the voltage on V
ON
����������������������������������������������������������������� Maxim Integrated Products 1
) and low on-resistance (R
BUS
General Description
TRANSCEIVER
AMPLIFIER
HI-SPEED
detection input (V
AUDIO
USB
B
is greater than 4.5V. The
Applications
UNC1
UNC2
AN01
AN02
BUS
MAX14585/MAX14585A
GND
ON
B
signal (V
) that can
) neces-
MAX14585
ONLY
B
B
V
CC
3.0V 0.1µF
AOR
S Low Power Consumption
S Flexible Design
S High Level of Integration for Performance
S Saves Board Space
Ordering Information
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX14585.related.
 Low Supply Current 7µA (typ)
 Single 2.7V to 5.5V Supply Operation, V
 Dual Power-Supply Architecture, V
 ANO� Channel Override Control Input
 28V-Capable V
 Low-Capacitance Hi-Speed USB for Both
 Distortion-Free Negative Signal Throughput
 3I (typ) On-Resistance
 960MHz Bandwidth
 0.04% THD+N Audio Channel
 ±15kV Human Body Model (HBM) ESD on
 Internal Shunt Resistor Reduces Clicks and
 10-Pin, 1.4mm x 1.8mm UTQFN Package
MAX14585/MAX14585A
V
CCINT
Selection by V
Channels (UNC� and ANO�)
Down to -1.8V on ANO� Channel
COM1, COM2
Pops (MAX14585)
V
VBDET
COM1
COM2
V
B
Typical Operating Circuit
E V A L U A T I O N K I T A V A I L A B L E
BUS
appears at end of data sheet.
B
Benefits and Features
USB AND AUDIO
COMBINATION
Input with Automatic UNC�
CONNECTOR
V
Detection
BUS
BUS
Detection
19-5878; Rev 0; 5/11
B
and V
CC
CC

Related parts for MAX14585

MAX14585 Summary of contents

Page 1

... VBDET can supply power to the part greater than 4.5V. The B MAX14585 features internal shunt resistors on the audio path to reduce clicks and pops heard at the output. The MAX14585/MAX14585A are available in a space- saving, 10-pin, 1.4mm x 1.8mm UTQFN package and operate over the -40NC to +85NC temperature range. ...

Page 2

... Maxim Integrated Products 2 MAX14585/MAX14585A Continuous Power Dissipation (T UTQFN (derate 7mW/NC above +70NC) ...

Page 3

... V CC COM_ FLAT(NC) V (Note 2mA 2.7V SH ANO_ CC R AOR Switch open 2.5V, 0V UNC_ UNC_(OFF -1.5V, 2.5V, V COM_ CC MAX14585A, switch open, V ANO_(OFF) 0V 0V, 2.5V, V COM_ 3.6V, CC COM_ COM_(OFF unconnected UNC_ ANO_ V CC USB mode 2.5V, unconnected, V COM_ COM_(ON Audio mode 2 ...

Page 4

... Maxim Integrated Products 4 MAX14585/MAX14585A ...

Page 5

... Maxim Integrated Products 5 MAX14585/MAX14585A MAX14585 MAX14585A COM1 R ...

Page 6

... Maxim Integrated Products 6 MAX14585/MAX14585A Typical Operating Characteristics ANO_ ON-RESISTANCE vs ...

Page 7

... TOGGLE UNC_ TO COM_ ANO_ TO COM_ 5.5 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) 0.5 0.4 0.3 0.2 0.1 -0.1 -0.2 -0.3 -0.4 -0.5 1000 10,000 100,000 Detection BUS FREQUENCY RESPONSE 0 -10 ON-LOSS -20 -30 -40 -50 OFF-ISOLATION -60 -70 -80 -90 -100 5.0 5.5 0.1 1 FREQUENCY (MHz) UNC_ EYE DIAGRAM MAX14585/85A toc14 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 -9 TIME ((x10 )s) CROSSTALK 10 100 1000 ...

Page 8

... Maxim Integrated Products 8 MAX14585/MAX14585A TOP VIEW COM2 COM1 7 6 AOR 8 5 MAX14585 MAX14585A UNC2 UNC1 ANO2 UTQFN FUNCTION to GND with a 0.1FF capacitor as close as possible to the CC control the switch. Drive AOR high to connect COM_ COM_ connects to UNC_ ...

Page 9

... UNC2 ANO1 ANO2 GND AOR Detailed Description The MAX14585/MAX14585A are high-ESD-protected single DPDT switches that operate from a 2.7V to 5.5V supply and are designed to multiplex Hi-Speed USB signals and AC-coupled analog signals. These switches combine the low on-capacitance (C tance (R ) necessary for high-performance switching ON applications ...

Page 10

... V becomes the power supply Click-and-Pop Suppression (MAX14585) The switched 700I (typ) shunt resistors on the MAX14585 automatically discharge any capacitance at the ANO_ terminals when they are unconnected from COM_. This reduces audio click-and-pop sounds that can occur when switching between USB and audio sources. ...

Page 11

... Ensure that bypass capacitors are as close to the device as possible. Use large ground planes where possible. PART MAX14585EVB+T MAX14585AEVB+T t Note: All devices are specified over the -40°C to +85°C tem- perature range. +Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. ...

Page 12

... 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 © 2011 Maxim Integrated Products MAX14585/MAX14585A BUS DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. Detection ...

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