MAX9755 Maxim Integrated Products, MAX9755 Datasheet

MAX9755

Manufacturer Part Number

MAX9755

Description

2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX9755.pdf (30 pages)

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Bonase Electronics (HK) Co., Limited

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The MAX9750/MAX9751/MAX9755 combine a stereo,

2.6W audio power amplifier and stereo DirectDrive

110mW headphone amplifier in a single device. The

headphone amplifier uses Maxim’s patented 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.

The MAX9750 features an analog volume control, and a

BEEP input. The MAX9751 features a 2:1 input multiplexer,

allowing multiple audio sources to be selected. All devices

feature 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 MAX9750/MAX9751/MAX9755 are offered in space-

saving, thermally efficient 28-pin thin QFN (5mm x 5mm

x 0.8mm) and 28-pin TSSOP-EP packages. Both devices

have thermal-overload and output short-circuit protec-

tion, and are specified over the extended -40°C to +85°C

temperature range.

19-3006; Rev 0; 1/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Simplifed Block Diagrams continued at end of data sheet.

Notebook PCs

Tablet PCs

Portable DVD

MAX9750

BEEP

VOL

Simplified Block Diagrams

________________________________________________________________ Maxim Integrated Products

2.6W Stereo Audio Power Amplifiers and

General Description

Flat-Panel TVs

PC Displays

LCD Projectors

DirectDrive Headphone Amplifiers

Applications

♦ No DC-Blocking Capacitors Required—Provides

♦ 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 Protection

♦ Selectable Gain Settings

♦ Analog Volume Control (MAX9750)

♦ Beep Input with Glitch Filter (MAX9750)

♦ 2:1 Stereo Input MUX (MAX9751)

♦ ±8kV ESD-Protected Headphone Driver Outputs

♦ Available in Space-Saving, Thermally Efficient

*Future product—contact factory for availability.

**EP = Exposed Paddle.

†

MAX9750AETI*

MAX9750AEUI*

MAX9750BETI*

MAX9750BEUI*

MAX9750CETI

MAX9750CEUI*

MAX9751ETI*

MAX9751EUI*

MAX9755AETI*

MAX9755AEUI*

Lead-free package.

Industry’s Most Compact Notebook Audio

Solution

Packages

28-Pin Thin QFN (5mm x 5mm x 0.8mm)

28-Pin TSSOP-EP

PART

†

-40°C to +85°C 28 Thi n QFN

-40°C to +85°C 28 TSSOP-EP**

-40°C to +85°C 28 Thi n QFN

-40°C to +85°C 28 TSSOP-EP**

-40°C to +85°C 28 Thi n QFN

-40°C to +85°C 28 TSSOP-EP**

-40°C to +85°C 28 Thi n QFN

-40°C to +85°C 28 TSSOP-EP**

-40°C to +85°C 28 Thi n QFN

-40°C to +85°C 28 TSSOP-EP**

TEMP RANGE

Ordering Information

PIN-

PACKAGE

www.DataSheet4U.com

Features

M A XIM U M

G A I N ( d B )

13.5

19.5

10.5

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