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參數資料
| 型號： | 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 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9722AEUE+ | 功能描述:音頻放大器 DirectDrive 130mW Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產品: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 開發工具 MAX9722A/B Eval Kit RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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