MAX9724BETC+T

更新时间： 2024-11-03 13:11:07

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
19页	777K
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MAX9724BETC+T 数据手册

19-3597; Rev 3; 3/07

60mW, DirectDrive, Stereo Headphone Amplifier

with Low RF Susceptibility and Shutdown

General Description

Features

The MAX9724A/MAX9724B stereo headphone ampli-

fiers are designed for portable equipment where board

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

patented^†DirectDrive™ architecture to produce a

ground-referenced output from a single supply, elimi-

nating the need for large DC-blocking capacitors, sav-

ing cost, board space, and component height. The

MAX9724 suppresses RF radiation received by input

and supply traces acting as antennas and prevents the

amplifer from demodulating the coupled noise. The

MAX9724A offers an externally adjustable gain while

the MAX9724B has an internally preset gain of -1.5V/V.

The MAX9724A/MAX9724B 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 sup-

plies without an additional linear regulator.

Comprehensive click-and-pop circuitry suppresses

audible clicks and pops on startup and shutdown.

♦ Improved RF Noise Rejection (Up to 67dB Over

Typical Amplifiers)

♦ No Bulky DC-Blocking Capacitors Required

♦ Low-Power Shutdown Mode, < 0.1µA

♦ Adjustable Gain (MAX9724A) or Fixed -1.5V/V

Gain (MAX9724B)

♦ Low 0.02% THD+N

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

♦ Integrated Click-and-Pop Suppression

♦ 2.7V 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

GAIN PIN-

(V/V) PACKAGE

PKG

TOP

PART

CODE

MARK

The MAX9724A/MAX9724B operate from a single 2.7V

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.

MAX9724AEBC+T Adj. 12 UCSP-12 B12-1

MAX9724AETC+ Adj. 12 TQFN-EP* T1233-1

MAX9724BEBC+T -1.5 12 UCSP-12 B12-1

MAX9724BETC+ -1.5 12 TQFN-EP* T1233-1

+ADH

+AAT

+ADI

+AAU

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

range.

Applications

DVD Players

Smart Phones

PDAs

+Denotes lead-free package.

*EP = Exposed paddle.

Pin Configurations appear at end of data sheet.

Cellular Phones

MP3 Players

Notebook PCs

Handheld Gaming Consoles

†

U.S. Patent# 7,061,327

UCSP is a trademark of Maxim Integrated Products, Inc.

Block Diagrams

MAX9724B

MAX9724A

DirectDrive OUTPUTS

ELIMINATE DC-BLOCKING

CAPACITORS

LEFT

AUDIO

INPUT

ELIMINATE DC-BLOCKING

CAPACITORS

LEFT

AUDIO

INPUT

SHDN

RIGHT

AUDIO

INPUT

RIGHT

AUDIO

INPUT

FIXED GAIN ELIMINATES

EXTERNAL RESISTOR

NETWORK

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...19

中文翻译

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MAX9724BETC+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX9724BETC+	MAXIM	完全替代	60mW, DirectDrive, Stereo Headphone Amplifier with Low RF Susceptibility and Shutdown
MAX9724BEUD+	MAXIM	类似代替	Audio Amplifier, 0.06W, 2 Channel(s), 1 Func, BICMOS, PDSO14, 5 X 4.40 MM, 1.10 MM HEIGHT,
MAX9724BEBC+TG45	MAXIM	类似代替	60mW, DirectDrive, Stereo Headphone Amplifier with Low RF Susceptibility and Shutdown

与MAX9724BETC+T相关器件

型号	品牌	获取价格	描述	数据表
MAX9724BEUD+	MAXIM	获取价格	Audio Amplifier, 0.06W, 2 Channel(s), 1 Func, BICMOS, PDSO14, 5 X 4.40 MM, 1.10 MM HEIGHT,
MAX9724BEUD+	ROCHESTER	获取价格	0.06W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14, 5 X 4.40 MM, 1.10 MM HEIGHT, LEAD FREE, MO-153A
MAX9724BEUD+T	MAXIM	获取价格	Audio Amplifier, 0.06W, 2 Channel(s), 1 Func, BICMOS, PDSO14, 5 X 4.40 MM, 1.10 MM HEIGHT,
MAX9724C	MAXIM	获取价格	Low RF Susceptibility DirectDrive Stereo Headphone Amplifier with 1.8V Compatible Shutdown
MAX9724C	ADI	获取价格	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
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

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