QuickView - MAX9737 Mono 7W Class D Amplifier

ENGLISH • 简体中文 • 日本語 • 한국어


Enter keywords or part number

What's New

Maxim > Products > [Audio]

MAX9737 Mono 7W Class D Amplifier

Direct-from-Battery 7W Class D Amplifier Slashes Notebook 2.1 Solution Cost

QuickView Technical Documents Ordering Info More Information User Comments (0) All

Description

FULL DATA SHEET (PDF, 356kB)

Download E-Mail

The MAX9737 mono 7W Class D amplifier provides a high-performance, thermally efficient amplifier solution that offers up to 88% efficiency at a 12V supply. The device operates from 8V to 28V and provides a high 80dB PSRR, eliminating the need for a regulated power supply.

Filterless modulation allows the MAX9737 to pass CE EMI limits with 1m cables using only a low-cost ferrite bead and small-value capacitor on each output.

Comprehensive click-and-pop suppression circuitry reduces noise on power-up/down or into and out of shutdown or mute.

An input op amp allows the user to create a lowpass or highpass filter, and select an optimal gain. The internal precharge circuit ensures clickless/popless turn-on within 10ms.

The MAX9737 is available in the 24-pin, TQFN-EP package and is specified over the -40°C to +85°C temperature range.

Key Features Applications/Uses

8V to 28V Supply Voltage Range
Spread-Spectrum Modulation Enables Low-EMI Solution
Passes EMI Limit with Up to 1m of Speaker Cable
High 80dB PSRR
Up to 88% Efficiency Eliminates Heatsink
Thermal and Output Current Protection
< 1µA Shutdown Mode
Click-and-Pop Suppression
< 10ms Turn-On Time
Space-Saving, 4mm x 4mm x 0.8mm, 24-Pin TQFN Package

2.1 Notebook PCs
LCD/PDP/CRT Monitors
MP3 Docking Stations
PC Surround Speakers

Key Specifications: Speaker Amplifiers

Part Number

Class

Speaker Amp. V_CC (min) (V)

Speaker Amp. V_CC (max) (V)

Speaker Amp. I_CC (typ) (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)

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

SNR, A-weighted (dB)

PSRR (db)

Features

Number of Channels

Price^**

MAX9737

7.5

0.06

•	Filterless Operation

•	Wide Supply Range

$0.80 @ 1k

See All Speaker Amplifiers (30)

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

MAX9737: Typical Application Circuit
Typical Application Circuit

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

Document Ref.: 19-4327; Rev 0; 2008-11-18
This page last modified: 2009-07-08