MAX9718AEVKIT Maxim Integrated Products, MAX9718AEVKIT Datasheet

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MAX9718AEVKIT

Manufacturer Part Number
MAX9718AEVKIT
Description
Audio Modules & Development Tools MAX9718A KIT MAX9718A KIT
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX9718AEVKIT

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX9718/MAX9719 differential input audio power
amplifiers are ideal for portable audio devices with
internal speakers. The differential input structure
improves noise rejection and provides common-mode
rejection. A bridge-tied load (BTL) architecture mini-
mizes external component count, while providing high-
quality, power audio amplification. The MAX9718 is a
single-channel amplifier while the MAX9719 is a dual-
channel amplifier for stereo systems. Both devices
deliver 1.4W continuous average power per channel to
a 4Ω load with less than 1% THD+N while operating
from a single +5V supply. The devices are available as
adjustable gain amplifiers or with internally fixed gains
of 0dB, 3dB, and 6dB to reduce component count.
A shutdown input disables the bias generator and
amplifiers and reduces quiescent current consumption
to less than 100nA. The MAX9718 shutdown input can
be set as active high or active low. These devices fea-
ture Maxim’s comprehensive click-and-pop suppres-
sion circuitry that reduces audible clicks and pops
during startup and shutdown.
The MAX9718 is pin compatible with the LM4895,
and is available in 9-bump UCSP™, 10-pin TDFN, and
10-pin μMAX
16-pin TQFN, 16-pin TSSOP, and 16-bump UCSP pack-
ages. Both devices operate over the -40°C to +85°C
extended temperature range.
19-3050; Rev 7; 4/10
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.
Mobile Phones
PDAs
Portable Devices
®
packages. The MAX9719 is available in
1.4W Differential Audio Power Amplifiers
________________________________________________________________ Maxim Integrated Products
SHDM
SHDN
IN+
IN-
General Description
SINGLE SUPPLY
2.7V TO 5.5V
MAX9718
Applications
OUT+
OUT-
Low-Cost, Mono/Stereo,
o 2.7V to 5.5V Single-Supply Operation
o Very High -93dB PSRR at 217Hz
o 1.4W into 4Ω at 1% THD+N (per Channel)
o Differential Input
o Internal Fixed Gain to Reduce Component Count
o Adjustable Gain Option (MAX9718A/H/MAX9719A)
o 100nA Low-Power Shutdown Mode
o No Audible Clicks or Pops at Power-Up/Down
o Improved Performance Pin-Compatible Upgrade
o 1.8V Logic Compatible
+ Denotes lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
G45 indicates protective die coating.
Ordering Information continued at end of data sheet.
Pin Configurations appear at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
μMAX is a registered trademark of Maxim Integrated Products, Inc.
M A X9 7 1 8 AE BL+ TG 45 -40°C to +85°C 3 x 3 UCSP
MAX9718AETB+T
to LM4895 (MAX9718D/G)
SHDN
INR+
INL+
INL-
INR-
PART
Simplified Block Diagrams
SINGLE SUPPLY
2.7V TO 5.5V
MAX9719
-40°C to +85°C 10 TDFN-EP*
TEMP RANGE
Ordering Information
OUTL+
OUTL-
OUTR+
OUTR-
PIN-
PACKAGE
Features
M A R K
+ADX
+AAV
T O P
1

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MAX9718AEVKIT Summary of contents

Page 1

... EP = Exposed pad. G45 indicates protective die coating. Ordering Information continued at end of data sheet. Applications Pin Configurations appear at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. μMAX is a registered trademark of Maxim Integrated Products, Inc. INL+ OUT+ INL- INR+ OUT- ...

Page 2

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V to GND) ..................................-0.3V to +6V CC Any Other Pin to GND ...............................-0. IN_, BIAS, SHDM, SHDN, SHDN Continuous Current ........20mA OUT_ Short-Circuit Duration to GND ...

Page 3

Differential Audio Power Amplifiers ELECTRICAL CHARACTERISTICS—5V Supply (continued 5V, GND = 0, SHDN/SHDN = +25° 0.1μF, no load. Typical values are BIAS PARAMETER SYMBOL Gain Accuracy Channel-to-Channel Gain ...

Page 4

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers ELECTRICAL CHARACTERISTICS—3V Supply (continued 3V, GND = 0, SHDN/SHDN = +25° 0.1μF, no load. Typical values are BIAS PARAMETER SYMBOL Output Power ...

Page 5

Differential Audio Power Amplifiers ( 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz BIAS TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 8Ω ...

Page 6

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers ( 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz BIAS TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 100 4Ω L ...

Page 7

Differential Audio Power Amplifiers ( 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz BIAS OUTPUT POWER vs. LOAD RESISTANCE 600 1kHz 500 THD+N ...

Page 8

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers ( 0.1µF, THD+N measurement bandwidth = 22Hz to 22kHz BIAS CROSSTALK vs. FREQUENCY - 200mV RIPPLE P-P - ...

Page 9

Differential Audio Power Amplifiers ( 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz BIAS SUPPLY CURRENT vs. TEMPERATURE ...

Page 10

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers PIN TDFN-EP/ UCSP TQFN-EP µMAX — — 10 — — 12 — — 15 — — 16 — — — Detailed Description The MAX9718/MAX9719 are 1.4W BTL speaker ampli- fiers. The MAX9718 is ...

Page 11

Differential Audio Power Amplifiers +1 -1 Figure 1. Bridge-Tied Load Configuration Power Dissipation and Heat Sinking Under normal operating conditions, the MAX9718/ MAX9719 dissipate a significant amount of power. The maximum power dissipation for each package is given in ...

Page 12

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers The fully differential amplifier inputs can be biased at voltages other than midsupply. The common-mode feedback circuit adjusts for input bias, ensuring the outputs are still biased at midsupply. Input capacitors are not ...

Page 13

Differential Audio Power Amplifiers PART TEMP RANGE MAX9718AEUB+ -40°C to +85°C 10 μ +AAAA M AX 9718BE BL+ TG45 -40°C to +85° MAX9718BETB+T -40°C to +85°C 10 ...

Page 14

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers 10μF IN1+ IN1- IN2+ IN2- 2.7V TO 5.5V 1μF 14 ______________________________________________________________________________________ 2.7V TO 5.5V 1μ MAX9719 OUTL+ INL+ OUTL- INL- INR+ OUTR+ INR- OUTR- GND BIAS SHDN IN- Q MAX961 V ...

Page 15

Differential Audio Power Amplifiers 2.7V TO 5.5V SUPPLY V CC 1.0μ INVERTING IN- DIFFERENTIAL INPUT (OPTIONAL NONINVERTING IN+ DIFFERENTIAL INPUT (OPTIONAL) BIAS GENERATOR C BIAS 0.1μF SHDN SHUTDOWN SHDM CONTROL GND 2.7V TO 5.5V SUPPLY ...

Page 16

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers INVERTING DIFFERENTIAL INPUT (OPTIONAL) NONINVERTING DIFFERENTIAL INPUT (OPTIONAL) INVERTING DIFFERENTIAL INPUT (OPTIONAL) NONINVERTING DIFFERENTIAL INPUT (OPTIONAL) INVERTING DIFFERENTIAL INPUT (OPTIONAL) NONINVERTING DIFFERENTIAL INPUT (OPTIONAL) INVERTING DIFFERENTIAL INPUT (OPTIONAL) NONINVERTING DIFFERENTIAL MAX9719A INPUT A ...

Page 17

Differential Audio Power Amplifiers TOP VIEW SHDN SHDM 3 8 MAX9718 IN BIAS 5 6 μMAX TOP VIEW SHDN SHDM 3 8 MAX9718 IN BIAS ...

Page 18

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...

Page 19

Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...

Page 20

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...

Page 21

Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...

Page 22

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...

Page 23

Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...

Page 24

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...

Page 25

Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, ...

Page 26

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...

Page 27

... 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 ____________________ 27 © 2010 Maxim Integrated Products ...

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