Maxim > Products > Audio > MAX98304

MAX98304

Mono 3.2W Class D Amplifier

Industry's Smallest Class D Amplifier! 1mm x 1mm!

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX98304 mono 3.2W 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 filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count.

The IC's 0.95mA at 3.7V (1.2mA at 5V) quiescent current extends battery life in portable applications.

The IC is available in a 9-bump (1.0mm x 1.0mm) WLP with 0.3mm pitch that is specified over the extended -40°C to +85°C temperature range.

Data Sheet

Download	Rev 0	(PDF, 1.9MB)
E-Mail

An evaluation kit is available: MAX98304EVKIT

Key Features

Low Quiescent Current: 0.95mA at 3.7V
Spread Spectrum and Active Emissions Limiting
Five Pin-Selectable Gains
19µV_RMS Ultra-Low Noise
90dB PSRR
Click-and-Pop Suppression
Thermal and Overcurrent Protection
Low-Current Shutdown Mode
1.0mm x 1.0mm, 9-Bump WLP (0.3mm Pitch) Space-Saving Package

Applications/Uses

Cellular Phones
MP3 Players
Notebook and Netbook Computers
Portable Audio Players
Tablets
VoIP Phones

Key Specifications:

Speaker Amplifiers

Part Number

Class

Spkr. Amp. V_CC
(V)

Spkr. Amp. I_CC
(mA)

P_OUT into 4Ω @ 1% THD+N
(W)

P_OUT into 4Ω @ 10% THD+N
(W)

P_OUT into 8Ω @ 1% THD+N
(W)

P_OUT into 8Ω @ 10% THD+N
(W)

Spkr. Amp. Half Pwr. THD+N
(%)

SNR
(dB)

PSRR
(dB)

Spkr. Amp. Ext. Gain

Spkr. Amp. Fxd. Gain
(V/V)

Channels

Budgetary Price

min

max

typ

min

A- Weighted

min

max

See Notes

MAX98304

2.5

5.5

0.95

2.6

3.2

1.4

1.8

0.03

99.6

$0.42 @1k

See All Speaker Amplifiers (44)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Application Circuit

More Information

Topmark Coding	MAX98304
New Product Press Release	[ 2011-01-19 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-5519 Rev 0; 2010-10-11
This page last modified: 2011-03-10