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| 型号： | MAX9724CETC+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO .063W STER 12TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 系列： | DirectDrive® |
| 类型： | AB 类 |
| 输出类型： | 耳机，2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 63mW x 2 @ 32 欧姆 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 特点： | 消除爆音，短路保护和热保护，关闭 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 12-TQFN EP（3x3） |
| 封装/外壳： | 12-WQFN 裸露焊盘 |
| 包装： | 管件 |
| 配用： | MAX9724AEVKIT+-ND - EVALUATION KIT FOR MAX9724A/B MAX9724DEVKIT+-ND - KIT EVAL FOR MAX9724D |
General Description
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.
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.
Applications
Features
Improved RF Noise Rejection (Up to 67dB Over
Typical Amplifiers)
No Bulky DC-Blocking Capacitors Required
Low-Power Shutdown Mode, < 0.1A
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)
MAX9724C/MAX9724D
Low RF Susceptibility DirectDrive Stereo Head-
phone Amplifier with 1.8V Compatible Shutdown
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-4130; Rev 0; 5/08
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.
PART
GAIN (V/V)
PIN-PACKAGE
TOP
MARK
MAX9724CEBC+T
Adj.
12 UCSP
+AGE
MAX9724CETC+
Adj.
12 TQFN-EP*
+ABJ
MAX9724DEBC+T
-1.5
12 UCSP
+AEH
MAX9724DETC+
-1.5
12 TQFN-EP*
+ABK
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.
Cellular Phones
MP3 Players
Notebook PCs
Handheld Gaming Consoles
LEFT
AUDIO
INPUT
RIGHT
AUDIO
INPUT
SHDN
MAX9724C
LEFT
AUDIO
INPUT
RIGHT
AUDIO
INPUT
MAX9724D
SHDN
DirectDrive OUTPUTS
ELIMINATE DC-BLOCKING
CAPACITORS
DirectDrive OUTPUTS
ELIMINATE DC-BLOCKING
CAPACITORS
FIXED GAIN ELIMINATES
EXTERNAL RESISTOR
NETWORK
Block Diagrams
Pin Configurations appear at end of data sheet.
DVD Players
Smart Phones
PDAs
DirectDrive is a registered trademark of
Maxim Integrated Products, Inc.
UCSP is a trademark of Maxim Integrated Products, Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9724CETC+ | 功能描述:音频放大器 Low RF Susceptible Headphone Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9724CETC+T | 功能描述:音频放大器 Low RF Susceptible Headphone Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9724CEVKIT+ | 制造商:Maxim Integrated Products 功能描述:LOW RF SUSCEPTIBILITY DIRECTDRIVE S - Boxed Product (Development Kits) |
| MAX9724DEBC+T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9724DEBC+TG45 | 功能描述:音频放大器 Low RF Susceptible Headphone Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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