Maxim > Products > Audio > MAX97003

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

Audio Subsystem with Best-in-Class EMI Reduction and Highly Efficient Class H Stereo Headphone Amplifiers

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX97003 audio subsystem combines a mono speaker amplifier with a stereo headphone amplifier. The headphone and speaker amplifiers have independent volume and on/off controls. The four inputs are configurable as two differential or four single-ended inputs.

To minimize output noise, both the headphone and speaker outputs utilize a downward expander/noise gate to attenuate noise when no desired input signal is present.

The speaker output incorporates an adjustable dynamic range compressor (DRC) and distortion limiter to protect the speaker and maximize loudness. This allows high gain for low-level signals without compromising the quality of large signals.

All controls are performed using the two-wire I²C interface. The IC operates in the extended -40°C to +85°C temperature range, and is available in the 2.0mm x 2.4mm, 20-bump WLP package (0.4mm pitch).

Data Sheet

Download	Rev 0	(PDF, 3.9MB)
E-Mail

An evaluation kit is available: MAX97003EVKIT

Key Features

2.7V to 5.5V Speaker Supply Voltage
1.8V Headphone Supply Voltage
1.0W Speaker Output (V_PVDD = 4.2V, Z_SPK = 8Ω + 68µH, 1% THD+N)
32mW/Channel Headphone Output (R_HP = 32Ω)
Active Emissions Limiting for Enhanced EMI Reduction
Efficient Class H Headphone Amplifier
Ground-Referenced Headphone Outputs
Headphone Ground Sense
2 Stereo Single-Ended/Mono Differential Inputs
Integrated Expander/Noise Gate for Low Output Noise
Integrated DRC (Speaker Outputs)
Integrated Distortion Limiter (Speaker Outputs)
Extensive Click-and-Pop Reduction Circuitry
TDMA Noise Free
2.0mm x 2.4mm, 20-Bump WLP Package (0.4mm Pitch)

Applications/Uses

Cell Phones
Portable Media Players

Key Specifications:

Integrated Amplifiers

Part Number

Functions

Class

Spkr. Amp. V_CC
(V)

Spkr. Amp. I_CC
(mA)

Spkr. Amp. P_OUT
(W)

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

Hdph. Amp. V_CC
(V)

Hdph. Amp. I_CC
(mA)

Hdph. Amp. P_OUT into 32Ω
(mW)

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

Package/Pins

Budgetary Price

min

max

typ

min

max

typ

@ 1% THD+N

See Notes

MAX97003

Mobile Communication Subsystem

Netbook Subsystem

PC Notebook Subsystem

2.7

5.5

1.64

0.03

1.6

0.034

0.006

WLP/20

$0.68 @1k

See All Integrated Amplifiers (14)

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

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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.: 19-6044 Rev 0; 2011-10-24
This page last modified: 2011-12-08