MAX9752, MAX9753, MAX9754 2.2W, Low-EMI, Stereo, Class D Power Amplifiers with DirectDrive Headphone Amplifiers

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MAX9752, MAX9753, MAX9754 2.2W, Low-EMI, Stereo, Class D Power Amplifiers with DirectDrive Headphone Amplifiers

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Description

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The MAX9752/MAX9753/MAX9754 combine a high-efficiency, filterless, stereo Class D audio power amplifier with a DirectDrive™ headphone amplifier in a single device. The Class D amplifier operates from a single 4.5V to 5.5V supply and provides 2.2W per channel into a 4 load. The headphone amplifier operates from a single 3V to 5.5V supply, and uses Maxim's patented† DirectDrive architecture to produce a ground-referenced output from a single supply.

The MAX9754 features a Class D stereo speaker amplifier and headphone driver. The MAX9752 adds an analog volume control and a BEEP input. The MAX9753 adds a stereo 2:1 input multiplexer. All devices feature logic-selectable gain, and a headphone sense input that detects the presence of a headphone.

The MAX9752/MAX9753/MAX9754 come in 28-pin thin QFN (5mm x 5mm x 0.8mm) packages, and are specified over the extended -40°C to +85°C temperature range. For a pin-for-pin-compatible Class AB version of these devices, refer to the MAX9750/MAX9751/MAX9755 data sheet.

Key Features Applications/Uses

PC2001 Compliant
2.2W Class D Stereo Speaker Amplifier
Pin-for-Pin Compatible with Class AB MAX9750/MAX9751/MAX9755
85% Efficiency (R_L = 8, P_OUT = 1W)
62mW DirectDrive Headphone Amplifier
High PSRR (70dB at 1kHz)
Analog Volume Control (MAX9752)
Beep Input with Glitch Filter (MAX9752)
2:1 Stereo Input MUX (MAX9753)
±8kV ESD-Protected Headphone Outputs
No Output DC-Blocking Capacitors
Industry-Leading Click-and-Pop Suppression

Flat-Panel TVs
LCD Projectors
Notebook PCs
PC Displays
Portable DVDs
Tablet PCs

Key Specifications: Integrated Amplifiers

Part Number

Functions

Class

Speaker Amp. V_CC (min) (V)

Speaker Amp. V_CC (max) (V)

Speaker Amp. I_CC (typ) (mA)

Speaker Amp. P_OUT (W)

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

Headphone Amp. V_CC (min) (V)

Headphone Amp. V_CC (max) (V)

Headphone Amp. I_CC (typ) (mA)

Headph. Amp. P_OUT into 32Ω @1% THD+N (W)

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

Features

Package

Price^**

MAX9752

•	PC Notebook Subsystem

4.5

5.5

2.2

0.03

5.5

7.2

0.031

0.005

•

Beep

THIN QFN/28

$1.50 @ 1k

MAX9753

$1.50 @ 1k

MAX9754

$1.50 @ 1k

See All Integrated Amplifiers (21)

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.

^†U.S. Patent# 7,061,327

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Document Ref.: 19-3666; Rev 0; 2006-01-24
This page last modified: 2006-12-04