MAX97002

Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifiers

2mm x 2.5mm, 20-Bump WLP Audio Subsystem with Limiter and Industry's Best Class D Speaker and Class H Headphone Amplifiers

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX97002 mono audio subsystem combines a mono speaker amplifier with a stereo headphone amplifier and an analog DPST switch. The headphone and speaker amplifiers have independent volume control and on/off control. The 4 inputs are configurable as 2 differential inputs or 4 single-ended inputs.

The entire subsystem is designed for maximum efficiency. The high-efficiency, 700mW, Class D speaker amplifier operates directly from the battery and consumes no more than 1µA in shutdown mode. The Class H headphone amplifier utilizes a dual-mode charge pump to maximize efficiency while outputting a ground-referenced signal that does not require output coupling capacitors.

The speaker amplifier incorporates a distortion limiter to automatically reduce the volume level when excessive clipping occurs. This allows high gain for low-level signals without compromising the quality of large signals.

All control is performed using the 2-wire I²C interface. The MAX97002 operates over the extended -40°C to +85°C temperature range, and is available in the 2mm x 2.5mm, 20-bump WLP package (0.5mm pitch).

Data Sheet

Download	Rev 1	(PDF, 3MB)
E-Mail

An evaluation kit is available: MAX97002EVKIT

Key Features

2.7V to 5.5V Speaker Supply Voltage
1.6V to 2V Headphone Supply Voltage
700mW Speaker Output (V_PVDD = 3.7V, Z_SPK = 8Ω + 68µH)
37mW/Channel Headphone Output (R_HP = 16Ω)
Low-Emission Class D Amplifier
Efficient Class H Headphone Amplifier
Ground-Referenced Headphone Outputs
2 Stereo Single-Ended/Mono Differential Inputs
Integrated Distortion Limiter (Speaker Outputs)
Integrated DPST Analog Switch
No Clicks and Pops
TDMA Noise Free
2mm x 2.5mm, 20-Bump, 0.5mm Pitch WLP Package

Applications/Uses

Cell Phones
Portable Multimedia 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

MAX97002

Mobile Communication Subsystem

2.7

5.5

1.38

0.92

0.05

1.6

1.7

0.03

0.02

WLP/20

$0.83 @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

Product Guides

Audio (PDF)

Reliability Reports

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Software/Models

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Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX97002EWP+T			Active	WLP;20 pin;WLP; Outline Drawing:21-0059 (PDF) Land Pattern: Not Available Use pkgcode/variation: W202A2+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX97002EVKIT

Evaluation Kit for the MAX97002

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