MAX14505A Maxim, MAX14505A Datasheet

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MAX14505A

Manufacturer Part Number
MAX14505A
Description
The MAX14504/MAX14505/MAX14505A/MAX14506 dual single-pole/double-throw (SPDT) audio switches feature negative signal capability that allows signals from -VCC to +VCC to pass without distortion
Manufacturer
Maxim
Datasheet
The MAX14504/MAX14505/MAX14505A/MAX14506
dual single-pole/double-throw (SPDT) audio switches
feature negative signal capability that allows signals
from -V
ture high continuous current ratings of 550mA (continu-
ous) and 850mA (pulsed). These analog switches have
low on-resistance, low supply current, and operate from
a single +2.3V to +5.5V supply.
The MAX14505/MAX14505A have internal shunt switches
that discharge the audio amplifier AC-coupling capaci-
tance at the normally open (NO) terminals. This reduces
click-and-pop sounds that occur when switching audio
signals between precharged points. The MAX14504/
MAX14505/MAX14505A/MAX14506 control the switches
with control bit, CB, and feature an enable input, EN, that
place COM in a high-impedance mode.
The MAX14504/MAX14505/MAX14505A/MAX14506 are
fully specified to operate from a single +2.3V to +5.5V
power supply. These devices are available in a 1.56mm
x 2.14mm, 12-bump WLP package, and operate over
the -40°C to +85°C extended temperature range.
19-4244; Rev 1; 12/08
Typical Operating Circuit appears at end of data sheet.
Note: All devices are specified over the -40°C to +85°C temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* Future product—contact factory for availability.
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.
MAX14504EWC+
MAX14505EWC+*
MAX14505AEWC+
MAX14506EWC+*
Cell Phones
MP3 Players
Portable Audio Equipment
Speaker Switching
CC
to +V
PART
Dual SPDT Negative Rail Analog Switches
CC
________________________________________________________________ Maxim Integrated Products
to pass without distortion. They fea-
General Description
PIN-PACKAGE
12 WLP
12 WLP
12 WLP
12 WLP
Applications
TOP MARK
AAH
AAK
AAJ
AAI
Ordering Information/Selector Guide
o Distortion-Free Negative Signal Throughput from
o Internal Shunt Switches Reduce Click/Pop
o Low On-Resistance 0.36Ω (typ)
o 1mΩ (typ) On-Resistance Flatness
o COM High Impedance for EN = High
o Low 0.2µA (max) Shutdown Current
o +2.3V to +5.5V Single-Supply Voltage
o Small, 1.56mm x 2.14mm, 12-Bump WLP Package
(BUMPS ON BOTTOM)
-V
(MAX14505/MAX14505A)
(MAX14505A/MAX14506)
with ±V
CC
TOP VIEW
COM SIGNAL RANGE FOR
to +V
A
B
C
CC
0 to +V
0 to +V
EN = V
±V
±V
+
CC
CC
COM2
NO2
NC2
CC
CC
1
CC
CC
(1.56mm x 2.14mm)
Pin Configuration
NEG
CB
MAX14505A/
EN
2
MAX14504/
MAX14505/
MAX14506
WLP
Capability
GND
GND
V
3
CC
CLICKLESS
Features
COM1
NC1
NO1
YES
YES
4
NO
NO
1

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MAX14505A Summary of contents

Page 1

... These analog switches have low on-resistance, low supply current, and operate from a single +2.3V to +5.5V supply. The MAX14505/MAX14505A have internal shunt switches that discharge the audio amplifier AC-coupling capaci- tance at the normally open (NO) terminals. This reduces click-and-pop sounds that occur when switching audio signals between precharged points ...

Page 2

... Storage Temperature Range .............................-65°C to +150°C CC Package Junction-to-Ambient Thermal Resistance (θ Lead Temperature (soldering) .........................................+300°C are clamped by internal diodes. For EN ≥ are clamped by internal diodes (MAX14505A/MAX14506). Limit forward-diode current 3.3nF, unless otherwise noted. Typical values are at V NEG CONDITIONS ...

Page 3

Dual SPDT Negative Rail Analog Switches ELECTRICAL CHARACTERISTICS (continued +2.3 to +5.5V MIN MAX, unless otherwise noted.) (Note 3) PARAMETER SYMBOL NC_ or NO_ Off-Leakage I NC Current I NO_ (OFF) ...

Page 4

... CC CC (MAX14504/MAX14505 +5.5V (MAX14504/MAX14505 +3.0V (MAX14505A/MAX14506 +5.5V (MAX14505A/MAX14506 5.5V 0. 3.3nF NEG NEG = +85°C, and guaranteed by design over the specified temperature range )], V = output NO_ NC_ COM_ NO_ Typical Operating Characteristics ON-RESISTANCE vs ...

Page 5

Dual SPDT Negative Rail Analog Switches (V = 3.0V +25°C, unless otherwise noted FLATNESS vs 0.3650 0.3645 0.3640 0.3635 0.3630 - NC_/NO_ TURN-ON/TURN-OFF TIME vs. TEMPERATURE ...

Page 6

Dual SPDT Negative Rail Analog Switches with ±V Capability 3.0V +25°C, unless otherwise noted COM_ ON-LEAKAGE CURRENT vs. TEMPERATURE 2.5V COM_ UNCONNECTED NC_ NO_ ...

Page 7

... V CC 0.1µ COM1 V CC MAX14504/ MAX14505/ MAX14505A/ NC1 MAX14506 NO1* 50Ω NEG GND C NEG MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF. NO_ OR NC_ TERMINAL ON EACH CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. ...

Page 8

... Analog Switch 1, Normally Open Terminal B1 COM2 Analog Switch 2, Common Terminal Active-Low Enable Input. Drive EN high to put switches in a high-impedance mode. Shunt click/pop EN switches are not affected by the state of EN. The MAX14505A/MAX14506 enter a low current state B2 when EN is driven high. B3, C3 GND Ground ...

Page 9

... OFF X = DON'T CARE. _______________________________________________________________________________________ with ±V impedance mode. When MAX14505 terminals have a signal range The MAX14505A/MAX14506 terminals have a sig- CC nal range ture a low supply current when The MAX14505/MAX14505A have internal shunt switch- to pass through both NO1 and NO2 terminals to suppress click- and-pop sounds that can occur when switching audio signals between precharged points ...

Page 10

... NO_, NC_, and COM_ terminals can be used as either inputs or outputs. Click-and-Pop Suppression The MAX14505/MAX14505A have a shunt switch on NO1 and NO2 terminals to automatically discharge any capacitance when they are not connected to COM1 and COM2. The shunt switch reduces audible click- ...

Page 11

... MAX14504/MAX14506 NC1 COM1 NC2 COM2 NO1 NO2 NEG C NEG GND 0.1µF MAX14505/MAX14505A NC1 COM1 NC2 COM2 NO1 NO2 NEG C NEG GND CB EN For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 12 WLP Capability ...

Page 12

... Changed Pin Configuration and Pin Description sections 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. ...

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