參數(shù)資料
型號(hào)： MAX9722AEUE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 音頻／視頻放大
英文描述： 5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown
中文描述： 0.13 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO16
封裝： 4.40 MM, MO-153AB, TSSOP-16
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 627K
代理商： MAX9722AEUE
General Description
The MAX9722A/MAX9722B stereo headphone amplifiers
are designed for portable equipment where board space
is at a premium. The MAX9722A/MAX9722B use a
unique, patented DirectDrive architecture to produce a
ground-referenced output from a single supply, eliminat-
ing the need for large DC-blocking capacitors, which
saves cost, board space, and component height.
Additionally, the gain of the amplifier is set internally
(-2V/V, MAX9722B) or adjusted externally (MAX9722A).
The MAX9722A/MAX9722B deliver up to 70mW per
channel into a 16
load or 130mW into a 32
load and
have low 0.009% THD+N. An 80dB at 217Hz power-sup-
ply rejection ratio (PSRR) allows these devices to operate
from noisy digital supplies without an additional linear
regulator. The MAX9722A/MAX9722B include ±8kV ESD
protection on the headphone outputs. Comprehensive
anticlick-and-pop circuitry suppresses audible clicks
and pops on startup and shutdown. A low-power shut-
down mode reduces the supply current to 0.1μA.
The MAX9722A/MAX9722B operate from a single 2.4V
to 5.5V supply, consume only 5.5mA 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
16-pin thin QFN (3mm
3mm
0.8mm) and 16-pin
TSSOP packages.
Applications
Features
o
2.4V to 5.5V Single-Supply Operation
o
High PSRR (80dB at 217Hz) Eliminates LDO
o
No Bulky DC-Blocking Capacitors Required
o
Ground-Referenced Outputs Eliminate DC Bias
Voltage on Headphone Ground Pin
o
No Degradation of Low-Frequency Response Due
to Output Capacitors
o
Differential Inputs for Enhanced Noise
Cancellation
o
Adjustable Gain (MAX9722A) or Fixed -2V/V Gain
(MAX9722B)
o
130mW per Channel into 32
o
Low 0.009% THD+N
o
Integrated Click-and-Pop Suppression
o
Low Quiescent Current (5.5mA)
o
Short-Circuit and Thermal-Overload Protection
o
±8kV ESD-Protected Amplifier Outputs (Human
Body Model)
o
Available in a Space-Saving 16-Pin Thin QFN
(3mm
3mm
0.8mm) Package
M
5V, Differential Input, DirectDrive, 130mW
Stereo Headphone Amplifiers with Shutdown
________________________________________________________________
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.
1
Ordering Information
LEFT
AUDIO
INPUT
DirectDrive OUTPUTS
ELIMINATE DC-BLOCKING
CAPACITORS.
FIXED GAIN ELIMINATES
EXTERNAL RESISTOR
NETWORK.
RIGHT
AUDIO
INPUT
SHDN
MAX9722B
Simplified Diagram
19-3049; Rev 0; 10/03
EVALUATION KIT AVAILABLE
*
EP = Exposed paddle.
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
PART
TEMP RANGE
PIN-PACKAGE
TOP
MARK
MAX9722A
ETE
-40
°
C to +85
°
C
16 Thin QFN-EP*
(3mm
3mm
0.8mm)
16 TSSOP
16 Thin QFN-EP*
(3mm
3mm
0.8mm)
16 TSSOP
AAX
MAX9722AEUE
-40
°
C to +85
°
C
—
MAX9722B
ETE
-40
°
C to +85
°
C
AAY
MAX9722BEUE
-40
°
C to +85
°
C
—
Notebook and
Desktop PCs
MP3 Players
Flat-Panel Monitors
Cellular Phones
Smart Phones
PDAs
Portable Audio
Equipment
相關(guān)PDF資料
PDF描述
MAX9722AETE 5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown
MAX9722BETE 5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown
MAX9722BEUE 5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown
MAX9725BEBC 1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown
MAX9725AEBC 1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9722AEUE+ 功能描述:音頻放大器 DirectDrive 130mW Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9722AEUE+T 功能描述:音頻放大器 DirectDrive 130mW Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9722AEUE-T 制造商:Maxim Integrated Products 功能描述:5V, DIFFERENTIAL INPUT, DIRECTDRIVE, 130MW ST - Tape and Reel
MAX9722AEVKIT 功能描述:音頻 IC 開發(fā)工具 MAX9722A/B Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
MAX9722BETE 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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