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參數(shù)資料
| 型號(hào)： | HWD2182 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 250mW Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 25萬(wàn)千瓦音頻功率放大器關(guān)斷模式 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 586K |
| 代理商： | HWD2182 |
HWD
21
82
250mW Audio Power Amplifier with Shutdown Mode
General Description
The
HWD21
82 is a single-ended audio power amplifier ca-
pable of delivering 250mW of continuous average power into
an 8
load with 1% THD+N from a 5V power supply.
audio power amplifiers were designed specifically
to provide high quality output power with a minimal amount
of external components using surface mount packaging.
Since the
HWD
21
82 does not require bootstrap capacitors or
snubber networks, it is optimally suited for low-power por-
table systems.
The
HWD
21
82 features an externally controlled, low power
consumption shutdown mode which is virtually clickless and
popless, as well as an internal thermal shutdown protection
mechanism.
The unity-gain stable
HWD21
82 can be configured by external
gain-setting resistors.
Key Specifications
j
THD+N at 1kHz at 250mW
continuous average output
power into 8
j
Output Power at 1% THD+N
at 1kHz into 4
j
THD+N at 1kHz at 85mW
continuous average output
power into 32
j
Shutdown Current
1.0% (max)
380mW (typ)
0.1% (typ)
0.7μA (typ)
Features
n
MSOP surface mount packaging
n
“Click and Pop” Suppression Circuitry
n
Supply voltages from 2.4V–5.5V
n
Operating Temperature 40C to 85C
n
Unity-gain stable
n
External gain configuration capability
n
No bootstrap capacitors, or snubber circuits are
necessary
Applications
n
Personal Computers
n
Cellular Phones
n
General Purpose Audio
Typical Application
Connection Diagram
*Refer to the
Application Information
Section for information concerning
proper selection of the input and output coupling capacitors.
FIGURE 1. Typical Audio Amplifier Application Circuit
MSOP and SOIC Package
Top View
Order Number
HWD21
82MM or
HWD21
82M
1
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