MAX9768

PRODUCTION

10W Mono Class D Speaker Amplifier with Volume Control

High-Efficiency, Low BOM-Cost Class D Amplifier

Data Sheet (Rev. 5) Product Selection Table

Part Models: 6
1ku List Price: Starting From $1.43

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Overview

10W Output (8Ω, PV_DD = 14V, THD+N = 10%)
Spread-Spectrum Modulation
Meets EN55022B EMC with Ferrite Bead Filters
Amplifier Operation from 4.5V to 14V Supply
64-Step Integrated Volume Control (I²C or Analog)
Low 0.08% THD+N (R_L = 8Ω, P_OUT = 6W)
High 77dB PSRR
Two t_ON Times Offered
- MAX9768—220ms
- MAX9768B—15ms
Low-Power Shutdown Mode (0.5µA)
Short-Circuit and Thermal-Overload Protection

The MAX9768 mono 10W Class D speaker amplifier provides high-quality, efficient audio power with an integrated volume control function.

The MAX9768 features a 64-step dual-mode (analog or digitally programmable) volume control and mute function. The audio amplifier operates from a 4.5V to 14V single supply and can deliver up to 10W into an 8Ω speaker with a 14V supply.

A selectable spread-spectrum mode reduces EMI-radiated emissions, allowing the device to pass EMC testing with ferrite bead filters and cable lengths up to 1m. The MAX9768 can be synchronized to an external clock, allowing synchronization of multiple Class D amplifiers.

The MAX9768 features high 77dB PSRR, low 0.08% THD+N, and SNR up to 97dB. Robust short-circuit and thermal-overload protection prevent device damage during a fault condition. The MAX9768 is available in a 24-pin thin QFN-EP (4mm x 4mm x 0.8mm) package and is specified over the extended -40°C to +85°C temperature range.

Applications

Flat-Panel Displays
GPS Navigation Systems
Multimedia Monitors
Notebook Computers
Security/Personal Mobile Radio

Part Models: 6
1ku List Price: Starting From $1.43

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX9768BETG+	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX9768BETG+T	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX9768BETG/V+	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX9768BETG/V+T	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX9768ETG+	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX9768ETG+T	24-TQFN-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 20, 2016 - 1612 ASSEMBLY
		pcn_1612
MAX9768BETG+	PRODUCTION
MAX9768BETG+T	PRODUCTION
MAX9768ETG+	PRODUCTION
MAX9768ETG+T	PRODUCTION
Jan 23, 2023 - 2348 DESIGN
		pcn_2348
MAX9768BETG/V+	PRODUCTION
MAX9768BETG/V+T	PRODUCTION
Jun 18, 2021 - 2161 ASSEMBLY
		pcn_2161
MAX9768BETG/V+	PRODUCTION
MAX9768BETG/V+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

MAX9768 GitHub Linux Driver Source Code

Can't find the software or driver you need?

Tools & Simulations

Software Development 1

MAX9768 Amplifier EV Kit Software, 1.0.0

Evaluation Kits

Evaluation Kit/Evaluation System for the MAX9768

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Features and Benefits

Fully Tested PCB
10W Output into 8Ω Load at 13V Power Supply
Bridge-Tied Load (BTL) Output and Click-and-Pop Suppression
Dual Mode™ Volume Control: Analog or I²C
Dual Modulation Schemes: Fixed Frequency and Spread Spectrum
Shut-Down Mode and Speaker Mute Mode
On-Board LDO for Low-Voltage Analog Power Supply
Windows 98SE/2000/XP-Compatible Evaluation Software
EV System Includes USB Connectivity

Product Details

The MAX9768 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) that demonstrates the capabilities of the MAX9768 mono 10W Class D speaker amplifier with volume control. The MAX9768 EV kit also includes Windows® 98SE/2000/XP-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX9768.

The MAX9768 evaluation system (EV system) consists of the MAX9768 EV kit and a companion CMAXQUSB serial-interface board. The CMAXQUSB interface board allows a PC to control an I²C interface using its USB port. Order the MAX9768 EV system (MAX9768EVCMAXQU+) for a complete PC-based evaluation of the MAX9768. Order the MAX9768 EV kit (MAX9768EVKIT+) if you already have a MAX9768-compatible serial interface.

Applications