Datasheet > MAX9724C

MAX9724C

更新时间： 2024-11-04 14:57:39

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
19页	345K
描述
具有低RF干扰敏感度的DirectDrive立体声耳机放大器，提供1.8V兼容关断控制

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MAX9724C 数据手册

19-4130; Rev 0; 5/08

Low RF Susceptibility DirectDrive Stereo Head-

phone Amplifier with 1.8V Compatible Shutdown

C/MAX9724D

General Description

Features

♦ Improved RF Noise Rejection (Up to 67dB Over

The MAX9724C/MAX9724D stereo headphone ampli-

fiers are designed for portable equipment where board

space is at a premium. These devices use a unique,

DirectDrive^®architecture to produce a ground-refer-

enced output from a single supply, eliminating the need

for large DC-blocking capacitors, saving cost, board

space, and component height. The MAX9724 sup-

presses RF radiation received by input and supply

traces acting as antennas and prevents the amplifier

from demodulating the coupled noise. The MAX9724C

offers an externally adjustable gain while the

MAX9724D has an internally preset gain of -1.5V/V. The

MAX9724C/MAX9724D deliver up to 60mW per channel

into a 32Ω load and have low 0.02% THD+N. An 80dB

at 1kHz power-supply rejection ratio (PSRR) allows

these devices to operate from noisy digital supplies

without an additional linear regulator. Comprehensive

click-and-pop circuitry suppresses audible clicks and

pops on startup and shutdown.

Typical Amplifiers)

♦ No Bulky DC-Blocking Capacitors Required

♦ Low-Power Shutdown Mode, < 0.1µA

♦ Adjustable Gain (MAX9724C) or Fixed -1.5V/V

Gain (MAX9724D)

♦ Low 0.02% THD+N

♦ High PSRR (80dB at 1kHz) Eliminates LDO

♦ Integrated Click-and-Pop Suppression

♦ 2.5V to 5.5V Single-Supply Operation

♦ Low Quiescent Current (3.5mA)

♦ Available in Space-Saving Packages

12-Bump UCSP (1.5mm x 2mm)

12-Pin Thin QFN (3mm x 3mm x 0.8mm)

Ordering Information

TOP

MARK

PART

GAIN (V/V) PIN-PACKAGE

The MAX9724C/MAX9724D operate from a single 2.5V

to 5.5V supply, consume only 3.5mA of supply current,

feature short-circuit and thermal-overload protection,

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

temperature range. The devices are available in tiny

12-bump UCSP™ (1.5mm x 2mm) and 12-pin thin QFN

(3mm x 3mm x 0.8mm) packages.

MAX9724CEBC+T

MAX9724CETC+

MAX9724DEBC+T

MAX9724DETC+

Adj.

-1.5

12 UCSP

+AGE

+ABJ

+AEH

+ABK

12 TQFN-EP*

12 UCSP

12 TQFN-EP*

Note: All devices specified over the -40°C to +85°C operating

range.

+Denotes a lead-free package.

T = Tape and reel.

*EP = Exposed pad.

Applications

DVD Players

Smart Phones

PDAs

Cellular Phones

MP3 Players

Notebook PCs

DirectDrive is a registered trademark of

Maxim Integrated Products, Inc.

Handheld Gaming Consoles

UCSP is a trademark of Maxim Integrated Products, Inc.

Pin Configurations appear at end of data sheet.

Block Diagrams

MAX9724D

MAX9724C

DirectDrive OUTPUTS

ELIMINATE DC-BLOCKING

CAPACITORS

DirectDrive OUTPUTS

ELIMINATE DC-BLOCKING

LEFT

AUDIO

INPUT

LEFT

AUDIO

CAPACITORS

INPUT

SHDN

RIGHT

AUDIO

INPUT

FIXED GAIN ELIMINATES

AUDIO

EXTERNAL RESISTOR

INPUT

NETWORK

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...19

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与MAX9724C相关器件

型号	品牌	获取价格	描述	数据表
MAX9724CEBC+T	MAXIM	获取价格	Low RF Susceptibility DirectDrive Stereo Headphone Amplifier with 1.8V Compatible Shutdown
MAX9724CETC+	MAXIM	获取价格	Audio Amplifier, 0.063W, 2 Channel(s), 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FREE
MAX9724CETC+T	MAXIM	获取价格	Audio Amplifier,
MAX9724D	MAXIM	获取价格	Low RF Susceptibility DirectDrive Stereo Headphone Amplifier with 1.8V Compatible Shutdown
MAX9724DEBC+T	MAXIM	获取价格	Low RF Susceptibility DirectDrive Stereo Headphone Amplifier with 1.8V Compatible Shutdown
MAX9724DETC+	MAXIM	获取价格	Audio Amplifier, 0.063W, 2 Channel(s), 1 Func, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD FREE
MAX9725	MAXIM	获取价格	1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown
MAX9725	ADI	获取价格	1V、低功耗、DirectDrive、立体声耳机放大器，带有关断
MAX9725_07	MAXIM	获取价格	1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown
MAX9725_V01	MAXIM	获取价格	1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown

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