MAX97003

RECOMMENDED FOR NEW DESIGNS

High-Efficiency, Low-Noise Audio Subsystem

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

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: price unavailable

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Overview

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)

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).

Applications

Cell Phones
Portable Media Players

Part Models: 2
1ku List Price: price unavailable

Documentation

Data Sheet 1

MAX97003: High-Efficiency, Low-Noise Audio Subsystem Data Sheet (Rev.0) 10/24/2011

Reliability Data 1

MAX97003 Reliability Data 01/12/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX97003EWP+	20-WLCSP-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX97003EWP+T	20-WLCSP-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

Software Development 1

MAX97003 EVKit Software, 1.0.0

Evaluation Kits

Evaluation Kit for the MAX97003

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Features and Benefits

2.7V to 5.5V Single-Supply Operation
Proven Audio PCB Layout
On-Board USB Interface Circuit Generates I²C-Compatible Signals
PCB Pads for User-Supplied I²C-Compatible Signals
Surface-Mount Components
Windows XP-, Windows Vista-, and Windows 7-Compatible Software
Fully Assembled and Tested

Product Details

The MAX97003 evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX97003 audio subsystem. The device features a mono Class D speaker amplifier and a stereo Class H DirectDrive® headphone amplifier. The EV kit features an on-board microcontroller for communicating with the I²C interface of the device. Pads are provided for accessing the analog inputs and amplifier outputs.

The EV kit requires a 2.7V to 5.5V power supply. The on-board LDO generates an additional 1.8V supply from the USB 5V supply. The EV kit delivers 1W into an 8Ω speaker, and 32mW/channel into a 32Ω headphone.

Windows XP®-, Windows Vista®-, and Windows® 7-compatible EV kit software is provided to facilitate configuration. The EV kit software controls the on-board microcontroller over USB, which generates I²C commands.