QuickView

Technical Documents

Ordering Info

More Information

User Comments (0)

All

Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 732kB) Download   E-Mail

Description

The MAX9703/MAX9704 mono/stereo Class D audio power amplifiers provide Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink. Using a Class D architecture, these devices deliver up to 15W while offering up to 78% efficiency. Proprietary and patent-protected modulation and switching schemes render the traditional Class D output filter unnecessary. The MAX9703/MAX9704 offer two modulation schemes: a fixed-frequency mode (FFM), and a spread-spectrum mode (SSM) that reduces EMI-radiated emissions due to the modulation frequency. The device utilizes a fully differential architecture, a full bridged output, and comprehensive click-and-pop suppression. The MAX9703/MAX9704 feature high 80dB PSRR, low 0.07% THD+N, and SNR in excess of 95dB. Short-circuit and thermal-overload protection prevent the devices from being damaged during a fault condition. The MAX9703 is available in a 32-pin TQFN (5mm x 5mm x 0.8mm) package. The MAX9704 is available in a 32-pin TQFN (7mm x 7mm x 0.8mm) package. Both devices are specified over the extended -40°C to +85°C temperature range.

Key Features		Applications/Uses
Filterless Class D Amplifier Unique Spread-Spectrum Mode Offers 5dB Emissions Improvement Over Conventional Methods Up to 78% Efficient (RL = 8Ω) Up to 88% Efficient (RL = 16Ω) 15W Continuous Output Power into 8Ω (MAX9703) 2x10W Continuous Output Power into 8Ω (MAX9704) Low 0.07% THD+N High PSRR (80dB at 1kHz) 10V to 25V Single-Supply Operation Differential Inputs Minimize Common-Mode Noise Pin-Selectable Gain Reduces Component Count Industry-Leading Click-and-Pop Suppression Low Quiescent Current (24mA) Low-Power Shutdown Mode (0.2μA) Short-Circuit and Thermal-Overload Protection Available in Thermally Efficient, Space-Saving Packages 32-Pin TQFN (5mm x 5mm x 0.8mm)–MAX9703 32-Pin TQFN (7mm x 7mm x 0.8mm)–MAX9704		Automotive Desktop PCs Hands-Free Car Phone Adapters LCD Monitors LCD Projectors LCD TVs

Diagram

Block Diagram

Application Notes

Application Note 3878: Reduce EMI from Class-D Amplifiers Using New Modulation Techniques and Filter Architectures - MAX9704 Application Note 3879: Thermal Considerations for a Class D Amplifier - MAX9704 Application Note 3977: Class D Amplifiers: Fundamentals of Operation and Recent Developments - MAX9703, MAX9704

Design Guides

Amplifiers and Sensors (PDF) Audio (PDF) Displays (PDF)

Reliability Reports

Reliability Report: MAX9703.pdf MAX9704.pdf Show FIT data for: MAX9703 MAX9704

Software/Models

none

Ordering Information

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. More: SeeFull Data Sheet or Part 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.

Devices: 1-8 of 8

MAX9703	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9703ETJ			Active	TQFN;32 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0012 (PDF) Use pkgcode/variation: T3255-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX9703ETJ-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9703ETJ+			Active	TQFN;32 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0012 (PDF) Use pkgcode/variation: T3255+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9703ETJ+T			Active	TQFN;32 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0012 (PDF) Use pkgcode/variation: T3255+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9704	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9704ETJ			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX9704ETJ-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9704ETJ+			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9704ETJ+T			Active	TQFN;32 pin;50.4 mm² Outline Drawing: 21-0144 (PDF) Land Pattern: 90-0125 (PDF) Use pkgcode/variation: T3277+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2004-02-19

Related Products

More Like This: View Product Families for Similar Products See All Speaker Amplifiers (30 Products)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers Parametric Search Applications Help

QuickView

Technical Documents

Ordering Info

More Information

Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits