MAX9730EVKIT+ Maxim Integrated Products, MAX9730EVKIT+ Datasheet

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MAX9730EVKIT+

Manufacturer Part Number
MAX9730EVKIT+
Description
EVALUATION KIT FOR MAX9730
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX9730EVKIT+

Amplifier Type
Class G
Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
2.4W x 1 @ 8 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
MAX9730
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX9730 features a mono Class G power amplifier
with an integrated inverting charge-pump power supply.
The charge pump can supply up to 500mA of peak out-
put current over a 2.7VDC to 5.5VDC supply voltage
range, guaranteeing up to 2.4W output power into an
8Ω load. The 2.4W output power allows for transient
audio content to remain unclipped as the battery rail col-
lapses over time.
The MAX9730 maximizes battery life by offering high-
performance efficiency. Maxim’s proprietary output
stage provides efficiency levels greater than Class AB
devices without the EMI penalties commonly associat-
ed with Class D amplifiers. High efficiency allows the
MAX9730 to be packaged in a WLP package without
derating the output power handling capability.
The device utilizes fully differential inputs and outputs,
comprehensive click-and-pop suppression, shutdown
control, and soft-start circuitry. The MAX9730 is fully
specified over the -40°C to +85°C extended tempera-
ture range and is available in ultra-small, lead-free,
20-bump WLP (2mm x 2.5mm) and 28-pin TQFN (4mm
x 4mm) packages.
19-0701; Rev 5; 3/10
MP3 Players
Personal Media Players
Handheld Gaming
Consoles
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.
2.4W, Single-Supply, Class G Power Amplifier
________________________________________________________________ Maxim Integrated Products
General Description
C
C
IN
IN
Cell Phones
Smartphones
Notebook Computers
R
R
IN+
IN-
Applications
R
R
FB+
FB-
FB+
IN+
IN-
FB-
+
-
GND
V
o 2.7V to 5.5V Operation
o Integrated Charge-Pump Power Supply
o 63% Efficiency (V
o 2.4W Output Power into 8Ω at V
o Clickless/Popless Operation
o Small Thermally Efficient Packages
CC
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
G45 indicates protective die coating.
* EP = Exposed pad.
Typical Application Circuit/Functional Diagram and Pin
Configurations appear at end of data sheet.
MAX9730
MAX9730EWP+TG45
MAX9730ETI+
2.7V TO 5.5V
2mm x 2.5mm 20-Bump WLP
4mm x 4mm 28-Pin TQFN
CLASS G
CPGND
CPV
OUTPUT
CHARGE
STAGE
PUMP
PART
DD
Simplified Block Diagram
OUT+
OUT-
CC
Ordering Information
PIN-PACKAGE
20 WLP
28 TQFN-EP*
= 5V, P
OUT
CC
= 1W)
= 5V
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Features
1

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MAX9730EVKIT+ Summary of contents

Page 1

... IN IN- IN ________________________________________________________________ Maxim Integrated Products 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. o 2.7V to 5.5V Operation o Integrated Charge-Pump Power Supply o 63% Efficiency (V o 2.4W Output Power into 8Ω Clickless/Popless Operation o Small Thermally Efficient Packages 2mm x 2 ...

Page 2

Single-Supply, Class G Power Amplifier ABSOLUTE MAXIMUM RATINGS (Voltages with respect to GND CPV .............................................................-0. ...............................................................-6V to +0. CPGND..................................................................-0.3V to +0.3V OUT+, OUT-...................................(SV SS IN+, IN-, FB+, FB- ...

Page 3

Single-Supply, Class G Power Amplifier ELECTRICAL CHARACTERISTICS (continued 3.6V, V SHDN CC CPVDD GND 10µF; speaker load resistors (R ) are terminated between OUT+ and OUT-, unless otherwise stated wise noted. ...

Page 4

Single-Supply, Class G Power Amplifier ( 3.6V, V SHDN CC CPVDD GND 10µ 8Ω; speaker load resistors (R L unless otherwise noted. Typical values are at T TOTAL HARMONIC DISTORTION PLUS NOISE ...

Page 5

Single-Supply, Class G Power Amplifier ( 3.6V, V SHDN CC CPVDD GND 10µ 8Ω; speaker load resistors (R L unless otherwise noted. Typical values are at T POWER EFFICIENCY vs. OUTPUT POWER ...

Page 6

Single-Supply, Class G Power Amplifier ( 3.6V, V SHDN CC CPVDD GND 10µ 8Ω; speaker load resistors (R L unless otherwise noted. Typical values are at T CLASS G OUTPUT WAVEFORM MAX9730 ...

Page 7

Single-Supply, Class G Power Amplifier Detailed Description The MAX9730 Class G power amplifier with inverting charge pump is the latest in linear amplifier technolo- gy. The Class G output stage offers the performance of a Class AB amplifier while ...

Page 8

Single-Supply, Class G Power Amplifier Utilizing a Class G output stage with an inverting charge pump allows the MAX9730 to realize a 2.4W output power with a 5V supply. The theoretical best efficiency of a linear amplifier is 78%; ...

Page 9

Single-Supply, Class G Power Amplifier In differential input configurations, the common-mode rejection ratio (CMRR) is primarily limited by the exter- nal resistor and capacitor matching. Ideally, to achieve the highest possible CMRR, the following external com- ponents should be ...

Page 10

Single-Supply, Class G Power Amplifier Thermal Considerations Class G amplifiers provide much better efficiency and thermal performance than a comparable Class AB amplifier. However, the system’s thermal performance must be considered with realistic expectations and include consideration of many ...

Page 11

Single-Supply, Class G Power Amplifier TOP VIEW + SHDN 1 2 N.C. C1P 3 CPV 4 DD MAX9730 N. N.C. EP* FB- 7 THIN QFN *EXPOSED PAD. Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ TOP VIEW (BUMP SIDE DOWN) ...

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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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