max98308ewc+ Maxim Integrated Products, Inc., max98308ewc+ Datasheet

max98308ewc+

Manufacturer Part Number

max98308ewc+

Description

3.3w Mono Class Dg Multilevel Audio Amplifier

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX98308EWC.pdf (2 pages)

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The MAX98307/MAX98308 fully differential mono Class

DG multilevel power amplifiers with an integrated invert-

ing charge-pumps offer highly efficient, high-power

audio solutions for portable applications.

Class DG multilevel (patent pending) modulation extends

the dynamic range of the output signal by employing

a charge pump generated negative rail as needed to

extend the supply voltage.

The ICs combine Maxim’s active emissions limiting edge

rate and overshoot control circuitry with multilevel out-

put modulation to greatly reduce EMI. These features

eliminate the need for output filtering as compared to

traditional Class D devices, reducing component count

and cost.

The MAX98307’s 16-pin TQFN package features an

adjustable gain set by external resistors. The MAX98308’s

space-saving 12-bump WLP package features an inter-

nally fixed gain of 8.5dB, 11.5dB, 14.5dB, 17.5dB, and

20.5dB set by a single gain input. Both devices operate

over the extended -40NC to +85NC temperature range.

For related parts and recommended products to use with this part, refer to www.maxim-ic.com/MAX98307.related.

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.

Cellular Phones

Smart Phones

Notebook Computers

3.3W Mono Class DG Multilevel Audio Amplifier

�� Maxim Integrated Products 1

FB+

IN+

FB-

IN-

MAX98307

General Description

SHDN

VoIP Phones

Portable Audio

Tablet PCs

Applications

PVDD

GND

CHARGE PUMP

CLASS DG

AMPLIFIER

PVSS

PGND

SVSS

C1P

C1N

OUT+

OUT-

S High Efficiency Combined with High Output Power

S Improves Battery Life

S High Output Power at 1% THD+N

S High Output Power at 10% THD+N

S 84% Efficiency (V

S Active Emissions Limiting and Class DG Multilevel

S Integrated Charge Pump and High Efficiency

S Excellent RF Immunity

S Click-and-Pop Suppression

S Thermal and Overcurrent Protection

S Low-Current Shutdown Mode

Ordering Information

 Class DG Multilevel Modulation Ensures

 Low 1.85mA Quiescent Current

 1.54W at V

 2.85W at V

 1.77W at V

 3.3W at V

Output Modulation Eliminates EMI Output Filtering

Requirement

Results in Small Solution Size

Maximum Efficiency Over Wide Output Power

Range

MAX98307/MAX98308

IN+

IN-

MAX98308

Simplified Block Diagrams

PVDD

SHDN

E V A L U A T I O N K I T A V A I L A B L E

appears at end of data sheet.

Benefits and Features

PVDD

= 5V, 8I + 68µH Load

= 3.6V, 8I + 68µH Load

GAIN

= 3.6V, at 500mW Output)

GND

CHARGE PUMP

PVDD

AMPLIFIER

CLASS DG

PGND

XX-XXXX; Rev 0; 1/11

PVSS

C1P

C1N

OUT+

OUT-

Related parts for max98308ewc+

max98308ewc+ Summary of contents

Page 1

Mono Class DG Multilevel Audio Amplifier General Description The MAX98307/MAX98308 fully differential mono Class DG multilevel power amplifiers with an integrated invert- ing charge-pumps offer highly efficient, high-power audio solutions for portable applications. Class DG multilevel (patent pending) modulation ...

Page 2

... Maxim Application Note 1891: Wafer- Level Packaging (WLP) and Its Applications. Ordering Information PART GAIN SET MAX98307ETE+ External Internal MAX98308EWC+** Note: All devices operate over the -40°C to +85°C temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. **Future product–contact factory for availability. PIN-PACKAGE 16 TQFN-EP* ...

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