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參數(shù)資料
| 型號(hào)： | HWD2111 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dual 105mW Headphone Amplifier with Digital Volume Control and Shutdown Mode |
| 中文描述： | 雙105mW耳機(jī)放大器，具有數(shù)字音量控制和關(guān)斷模式 |
| 文件頁(yè)數(shù)： | 1/19頁(yè) |
| 文件大?。?/td> | 1038K |
| 代理商： | HWD2111 |
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HWD
21
11
Dual 105mW Headphone Amplifier with Digital Volume
Control and Shutdown Mode
General Description
The
HWD
21
11 is a dual audio power amplifier capable of
delivering 105mW per channel of continuous average power
into a 16
load with 0.1% (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. Since the
HWD
21
11 does not require
bootstrap capacitors or snubber networks, it is optimally
suited for low-power portable systems.
The
HWD
21
11 features a digital volume control that sets the
amplifier’s gain from +12dB to 33dB in 16 discrete steps
using a twowire interface.
The unity-gain stable
HWD
21
11 also features an externally
controlled, active-high, micropower consumption shutdown
mode. It also has an internal thermal shutdown protection
mechanism.
Key Specifications
n
THD+N at 1kHz, 105mW continuous average output
power into 16
n
THD+N at 1kHz, 70mW continuous average power into
32
n
Shutdown Current
0.1% (typ)
0.1% (typ)
0.3μA (typ)
Features
n
Digital volume control range from +12dB to 33dB
n
LD and MSOP surface mount packaging
n
"Click and Pop" suppression circuitry
n
No bootstrap capacitors required
n
Low shutdown current
Applications
n
Cellular Phones
n
MP3, CD, DVD players
n
PDA’s
n
Portable electronics
Connection Diagrams
MSOP Package
Top View
Order Number
HWD
21
11MM
LD Package
Top View
Order Number
HWD
21
11
LD
1
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