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MAX9736

Mono/Stereo High-Power Class D Amplifier

Versatile Pin-for-Pin Compatible Family of Filterless Class D Amplifers Offer Industry-Leading Solution Cost

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX9736A/B/D Class D amplifiers provide high-performance, thermally efficient amplifier solutions. The MAX9736A delivers 2 x 15W into 8Ω loads, or 1 x 30W into a 4Ω load. The MAX9736B/D deliver 2 x 6W into 8Ω loads or 1 x 12W into a 4Ω load.

These devices operate from 8V to 28V and provide a high PSRR, eliminating the need for a regulated power supply. The MAX9736 offers up to 88% efficiency at 12V supply.

Pin-selectable modulation schemes select between filterless modulation and classic PWM modulation. Filterless modulation allows the MAX9736 to pass CE EMI limits with 1m cables using only a low-cost ferrite bead and capacitor on each output. Classic PWM modulation is optimized for best audio performance when using a full LC filter.

A pin-selectable stereo/mono mode allows stereo operation into 8Ω loads or mono operation into 4Ω loads. In mono mode, the right input op amp becomes available as a spare device, allowing flexibility in system design. Comprehensive click-and-pop reduction circuitry minimizes noise coming into and out of shutdown or mute.

Input op amps allow the user to create summing amplifiers, lowpass or highpass filters, and select an optimal gain.

The MAX9736A/B/D are available in 32-pin TQFN packages and specified over the -40°C to +85°C temperature range.

Data Sheet

Download	Rev 3	(PDF, 668kB)
E-Mail

An evaluation kit is available: MAX9736AEVKIT MAX9736DEVKIT

Key Features

Wide 8V to 28V Supply Voltage Range
Spread-Spectrum Modulation Enables Low EMI Solution
Passes CE EMI Limits with Low-Cost Ferrite Bead/Capacitor Filter
Low BOM Cost
High 67dB PSRR at 1kHz Reduces Supply Cost
88% Efficiency Eliminates Heatsink
Thermal and Output Current Protection
< 1µA Shutdown Mode
Mute Function
Space-Saving, 32-Pin TQFN Packages, 7mm x 7mm x 0.8mm (MAX9736A/B), 5mm x 5mm x 0.8mm (MAX9736D)

Applications/Uses

All-in-One PCs
LCD/PDP/CRT Monitors
LCD/PDP/CRT TVs
MP3 Docking Stations
Notebook PCs
PC Speakers

Key Specifications:

Speaker Amplifiers

Part Number

Class

Spkr. Amp. V_CC
(V)

Spkr. Amp. I_CC
(mA)

P_OUT into 4Ω @ 1% THD+N
(W)

P_OUT into 4Ω @ 10% THD+N
(W)

P_OUT into 8Ω @ 1% THD+N
(W)

P_OUT into 8Ω @ 10% THD+N
(W)

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

SNR
(dB)

PSRR
(dB)

Spkr. Amp. Ext. Gain

Channels

Budgetary Price

min

max

typ

min

A- Weighted

min

See Notes

MAX9736A

13.5

17.5

0.04

96.5

Yes

$1.05 @1k

MAX9736B

7.5

$1.00 @1k

See All Speaker Amplifiers (41)

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 Diagram

Application Notes

Application Note 4628

TV Audio Amplifiers—Thermal Test Considerations for Slim Systems

Product Guides

Audio (PDF)

Reliability Reports

Reliability Report:	MAX9736B.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

none

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
MAX9736AETJ+			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736AETJ+T			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736AETJ/V+			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736AETJ/V+T			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736BETJ+			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736BETJ+T			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736BETJ/V+			Active	TQFN;32 pin;50.4 mm² Outline Drawing:21-0144 (PDF) Land Pattern: 90-0126 (PDF) Use pkgcode/variation: T3277+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9736BETJ/V+T			Active	QFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX9736DETJ+			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
MAX9736DETJ+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

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

MAX9736AEVKIT	Evaluation Kit for the MAX9736A and MAX9736B
MAX9736DEVKIT	Evaluation Kit for the MAX9736D

Products with Similar Part Numbers

MAX9736AEVKIT	Evaluation Kit for the MAX9736A and MAX9736B
MAX9736DEVKIT	Evaluation Kit for the MAX9736D

More Information

New Product Press Release

[ 2008-04-24 ]

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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.: 19-3108 Rev 3; 2009-10-13
This page last modified: 2010-06-07