Maxim > Products > Audio > MAX98309, MAX98310

MAX98309, MAX98310

Mono 1.4W Class AB Audio Amplifiers

Delivers Low Quiescent Current and Excellent SNR

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX98309/MAX98310 mono 1.4W Class AB audio amplifiers offer low quiescent current while maintaining excellent SNR and low 0.008% THD+N. These ICs feature excellent 90dB PSRR and state of the art click-and-pop suppression.

The ICs are offered with an internally fixed 0dB, 3dB, 6dB, and 9dB gain (MAX98310) or an externally set gain (MAX98309) through external resistors.

The MAX98309 feature a 10ms or 100ms pin-selectable turn-on time, while the MAX98310 has a preset 5ms turn-on time.

The MAX98309/MAX98310 are available in a (1.0mm x 1.0mm) 9-bump, 0.3mm pitch WLP, and are specified over the extended -40°C to +85°C temperature range.

Data Sheet

Download	Rev 0	(PDF, 2.4MB)
E-Mail

An evaluation kit is available: MAX98309EVKIT

Key Features

Enhances System Performance
- Differential Input Improves Noise Immunity
- Industry-Leading Click-and-Pop Suppression
- High 90dB PSRR (f_IN = 217Hz)
Smaller Solution Size
- 1mm x 1mm WLP Footprint
Extends Battery Life
- Low Quiescent Current
Delivers Robust System Design
- Thermal Overload Protection
- Short-Circuit Protection
1.2mA Supply Current (V_DD = 3.7V)
750mW into 8Ω (V_DD = 3.7V)
2.5V to 5.5V Supply Operation
Pin-Selectable, Internally-Fixed Gain (MAX98310)
1.8V Logic-Compatible Active-Low SHDN Input

Applications/Uses

Cell Phones/Smartphones
Digital Cameras
e-Readers
GPS
Portable Media Players
Tablets

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

MAX98309

2.5

5.5

1.2

2.1

2.7

1.4

1.7

0.01

110

Yes

$0.34 @1k

MAX98310

2.8

$0.34 @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

Simplified Block Diagram

More Information

Topmark Coding	MAX98309
Topmark Coding	MAX98310

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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.: 19-5912 Rev 0; 2011-07-14
This page last modified: 2011-07-14