Rainbow Electronics MAX98300 User Manual

XX-XXXX; Rev 0; 2/09

PRELIMINARY

Mono 2.6W Class D Amplifier

General Description

The MAX98300 mono 2.6W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (0dB, 3dB, 6dB, 9dB, and 12dB) set by a single gain-select input (GAIN).

Active emissions limiting* edge-rate and overshoot control circuitry greatly reduces EMI. A patented filterless spread-spectrum modulation** scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count.

The MAX98300 industry-leading 0.78mA at 3.7V, 1.1mA at 5V, quiescent current extends battery life in portable applications.

The MAX98300 is available in an 8-pin TDFN-EP (2mm x 2mm x 0.8mm) and a 9-bump (1.2mm x 1.2mm) WLP. Both packages are specified over the extended -40NC to +85NC temperature range.

MAX98300

Features

S Industry-Leading Quiescent Current: 0.78mA at

3.7V, 1.1mA at 5V

S Spread Spectrum and Active Emissions Limiting

S Five Selectable Gains

S Click-and-Pop Suppression

S Thermal and Overcurrent Protection

S Low-Current Shutdown Mode

S Space-Saving Packages

2mm x 2mm x 0.8mm, 8-Pin TDFN-EP

1.2mm x 1.2mm, 9-Bump WLP (0.4mm Pitch)

Applications

Notebook and Netbook Computers

Cellular Phones

MP3 Players

Portable Audio Players

VoIP Phones

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX98300ETA+* MAX98300EWL+

+Denotes lead(Pb)-free/RoHS-compliant package. *Future product—contact factory for availability. **EP = Exposed pad.

-40NC to +85NC

8 TDFN-EP** 9 WLP

Typical Application Circuit

+2.6V TO +5.5V

1µF

SHDN

GAIN

IN+

IN-

MAX98300

+2.6V TO +5.5V

PVDD

OUT+

OUT-

PGND

0.1µF

10µF*

*SYSTEM BULK CAPACITANCE

_______________________________________________________________ Maxim Integrated Products 1

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.