MAX4763 Maxim, MAX4763 Datasheet

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MAX4763

Manufacturer Part Number
MAX4763
Description
The MAX4762–MAX4764/MAX4764A/MAX4765 dual SPDT (single-pole/double-throw) switches feature negative signal capability that allows signals below ground to pass through without distortion
Manufacturer
Maxim
Datasheet
The MAX4762–MAX4764/MAX4764A/MAX4765 dual
SPDT (single-pole/double-throw) switches feature nega-
tive signal capability that allows signals below ground to
pass through without distortion. These analog switches
operate from a single +1.8V to +5.5V supply and have
low 0.6
audio signals.
The MAX4763/MAX4765 include a comparator that can
be used for headphone detection or a mute/send key
function. The MAX4764/MAX4764A/MAX4765 have an
internal shunt switch to automatically discharge any
capacitance at the NO and NC connection points. This
reduces click-and-pop sounds that occur when switching
audio signals between precharged points.
These SPDT switches are available in space-saving
µMAX
operate over the -40°C to +85°C extended tempera-
ture range.
19-3152; Rev 2; 1/06
µMAX is a registered trademark and UCSP is a trademark of
Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Pin Configurations/Functional Diagrams/Truth Table continued at end of data sheet.
Cell Phones
PDAs and Handheld Devices
Notebook Computers
MP3 Players
®
, TDFN, thin QFN, and UCSP
on-resistance, making them ideal for switching
TOP VIEW
(BUMP SIDE DOWN)
Low-Voltage, Dual SPDT, Audio Clickless
________________________________________________________________ Maxim Integrated Products
Switches with Negative Rail Capability
General Description
COM2
NO2
NC2
IN2
C1
C2
C3
C4
MAX4762/MAX4764
UCSP
GND
V
B1
B4
Pin Configurations/Functional Diagrams/Truth Table
CC
Applications
COM1
NO1
NC1
IN1
packages and
A1
A2
A3
A4
COM2
NO2
NC2
IN2
C1
C2
C3
C4
MAX4763/MAX4765
♦ Distortion-Free Negative Signal Throughput Down
♦ Comparator for Headphone or Mute Detection
♦ Internal Shunt Resistor Reduces Click/Pop
♦ Low On-Resistance (R
♦ 0.25 On-Resistance Flatness
♦ 0.05 On-Resistance Matching
♦ +1.8V to +5.5V Supply Voltage
♦ -70dB Crosstalk (100kHz)
♦ -65dB Off-Isolation (100kHz)
♦ 0.01% Total Harmonic Distortion
♦ Available in µMAX, TDFN, Thin QFN, and UCSP
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
MAX4762ETB
MAX4762EUB
MAX4762EBC-T
UCSP
CMPO
CMP-
to V
(MAX4763/MAX4765)
(MAX4764/MAX4764A/MAX4765)
Packages
GND
V
B1
B2
B3
B4
CC
0.6 at +2.7V Supply
PART
CC
COM1
NO1
NC1
IN1
- 5.5V
A1
A2
A3
A4
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
SWITCHES SHOWN FOR LOGIC "0" INPUT
Ordering Information
IN_
0
1
ON
MAX4764A/MAX4765
MAX4762–MAX4764/
)
NO_
OFF
ON
PIN-
PACKAGE
10 TDFN
10 µMAX
12 UCSP-12
NC_
OFF
ON
Features
MARK
ACG
TOP
ABU
1

Related parts for MAX4763

MAX4763 Summary of contents

Page 1

... The MAX4763/MAX4765 include a comparator that can be used for headphone detection or a mute/send key function. The MAX4764/MAX4764A/MAX4765 have an internal shunt switch to automatically discharge any capacitance at the NO and NC connection points. This reduces click-and-pop sounds that occur when switching audio signals between precharged points ...

Page 2

... NO_ I = 100mA COM 2.7V NC_ NC -1V, 0V, 1V, 2V 100mA COM_ MAX4764/MAX4764A/MAX4765 only 10mA 2.7V NO_ NC_ CC MAX4762/MAX4763 only (Note 7 2.7V, switch open -2.5V, +2.5V; NC_ NO_ V = +2.5V, -2.5V COM_ V = 2.7V, switch closed -2.5V, +2.5V, or NC_ NO_ floating -2.5V, +2.5V, or COM_ floating = +3.0V +25° ...

Page 3

... THD C NO_(OFF) NO_, NC_ Off-Capacitance C NC_(OFF) COM On-Capacitance C COM_(ON) DIGITAL I/O (IN_) Input-Logic High Voltage V IH Input-Logic Low Voltage V IL Input Leakage Current I IN COMPARATOR (MAX4763/MAX4765) Comparator Threshold _______________________________________________________________________________________ CONDITIONS T = +25° 2.7V 1.5V; for NO_ for A MIN IN_ ...

Page 4

... CONDITIONS I = 1mA SOURCE I = 1mA SINK 2.7V CMP 2.7V CMP- CC from 50 50 CMP- CMPO MAX4763/MAX4765 V = 5.5V IN_ MAX4762/MAX4764 MAX4764A V = 5.5V 1.8V MAX4764A CC IN_ V = 4.2V 1.8V CC IN_ MAX4764A (Note 11) = +25°C only, and guaranteed by design over the specified temperature range. ...

Page 5

... TEMPERATURE ( C) _______________________________________________________________________________________ Typical Operating Characteristics ON-RESISTANCE vs. COM VOLTAGE 1 5.0V CC 1 COM VOLTAGE (V) MAX4763/MAX4765 SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.8 2.3 2.8 3.3 3.8 4.3 SUPPLY VOLTAGE (V) MAX4762–MAX4765 LOGIC THRESHOLD vs. SUPPLY VOLTAGE 2.0 V RISING IN 1.6 1.2 V FALLING 0 1.8 2 ...

Page 6

Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability (V = 3.0V +25°C, unless otherwise noted LEAKAGE CURRENT vs. TEMPERATURE 1000 COM(ON) 100 I COM(OFF -40 -15 10 ...

Page 7

... Analog Switch 2—Common Terminal Analog Switch 2—Normally Open Terminal Exposed pad for TDFN package. Connect to GND. Pin Description (MAX4763/MAX4765) Analog Switch 1—Common Terminal Analog Switch 1—Normally Closed Terminal Digital Control Input for Analog Switch 1. A logic LOW on IN1 connects COM1 to NC1 and a logic HIGH connects COM1 to NO1 ...

Page 8

... The devices feature a negative signal capability that allows signals below ground to pass through without distortion and have break-before-make switching. The MAX4763/MAX4765 feature a comparator that can be used for headphone or mute detection. The comparator threshold is internally generated to be approximately 1 ...

Page 9

Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability MAX4762–MAX4764 MAX4764A/MAX4765 NO_ NC_ IN_ GND LOGIC INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE OUT ...

Page 10

Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability 10nF + COM1 IN_ CC MAX4762–MAX4764 MAX4764A/MAX4765 NO1* NC1 GND 50 MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND ...

Page 11

... MAX4763ETC No 3.0 x 5.0 MAX4764ETB No 1.5 x 2.0 MAX4764EUB No 4.0 x 4.0 MAX4764EBC-T Yes 1.5 x 2.0 MAX4764AETB Yes 3.0 x 3.0 MAX4765EBC-T Yes 3.0 x 3.0 MAX4765ETC Yes 3.0 x 5.0 Yes 1.5 x 2.0 Yes 4.0 x 4.0 TRANSISTOR COUNT: 769 PROCESS: BiCMOS MAX4763/MAX4765 NO1 V CMPO NO2 2 8 COM2 7 3 NC2 IN1 CMP- GND IN2 THIN QFN PIN- ...

Page 12

... Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 12 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 4x3 UCSP 1 21-0104 F 1 ...

Page 13

... Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) PIN 1 INDEX AREA -DRAWING NOT TO SCALE- COMMON DIMENSIONS MIN. ...

Page 14

... Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE, 12, 16, 20, 24, 28L THIN QFN, 4x4x0.8mm ...

Page 15

... D1 FRONT VIEW 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 © ...

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