Maxim > Products > Audio > MAX9779

MAX9779

2.6W Stereo Audio Power Amplifier and DirectDrive Headphone Amplifier

Overview

Technical Documents

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Status

All versions are No Longer Available.

Description

The MAX9779 combines a stereo, 2.6W audio power amplifier and stereo DirectDrive® 110mW headphone amplifier in a single device. The headphone amplifier uses Maxim's DirectDrive architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, space, and component height. A high 90dB PSRR and low 0.01% THD+N ensures clean, low-distortion amplification of the audio signal through the Class AB speaker amplifiers.

The MAX9779 features a single-supply voltage, a shutdown mode, logic-selectable gain, and a headphone sense input. Industry-leading click-and-pop suppression eliminates audible transients during power and shutdown cycles.

The MAX9779 is offered in a space-saving, thermally efficient 28-pin thin QFN (5mm x 5mm x 0.8mm) package. The device has thermal-overload and output short-circuit protection, and is specified over the extended -40°C to +85°C temperature range.

Data Sheet

Download	Rev 0	(PDF, 432kB)
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Key Features

No DC-Blocking Capacitors Required—Provides Industry's Most Compact Notebook Audio Solution
PC2001 Compliant
5V Single-Supply Operation
Class AB 2.6W Stereo BTL Speaker Amplifiers
110mW DirectDrive Headphone Amplifiers
High 90dB PSRR
Low-Power Shutdown Mode
Industry-Leading Click-and-Pop Suppression
Low 0.01% THD+N at 1kHz
Short-Circuit and Thermal-Overload Protection
Selectable Gain Settings (15dB, 16.5dB, 18dB, and 19.5dB)
±8kV ESD-Protected Headphone Driver Outputs
Available in Space-Saving, Thermally Efficient Package
- 28-Pin Thin QFN (5mm x 5mm x 0.8mm)

Applications/Uses

Flat-Panel TVs
LCD Projectors
Multimedia Monitors
Notebook PCs
Portable DVD Players
Tablet PCs

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Ordering Information

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Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9779ETI+		N/A	No Longer Available	TQFN;28 pin;26 mm² Outline Drawing:21-0140 (PDF) Land Pattern: 90-0029 (PDF) Use pkgcode/variation: T2855N+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9779ETI+T		N/A	No Longer Available	QFN;28 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet

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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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.: 19-3766 Rev 0; 2005-08-13
This page last modified: 2010-05-27