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參數(shù)資料
| 型號(hào)： | SSM2211CPZ-REEL71 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Distortion, 1.5 W Audio Power Amplifier |
| 中文描述： | 低失真，1.5 W音頻功率放大器 |
| 文件頁數(shù)： | 14/24頁 |
| 文件大?。?/td> | 408K |
| 代理商： | SSM2211CPZ-REEL71 |
SSM2211
PRODUCT OVERVIEW
The SSM2211 is a low distortion speaker amplifier that can run
from a 2.7 V to 5.5 V supply. It consists of a rail-to-rail input
and a differential output that can be driven within 400 mV of
either supply rail while supplying a sustained output current of
350 mA. The SSM2211 is unity-gain stable, requiring no
external compensation capacitors, and can be configured for
gains of up to 40 dB. Figure 41 shows the simplified schematic.
Rev. D | Page 14 of 24
4
3
SHUTDOWN
V
O1
V
DD
A2
A1
2
V
IN
20k
Ω
20k
Ω
50k
Ω
0.1
μ
F
7
8
5
6
SSM2211
50k
Ω
50k
Ω
50k
Ω
V
O2
BIAS
CONTROL
0
1
Figure 41. Simplified Schematic
Pin 4 and Pin 3 are the inverting and noninverting terminals
to A1. An offset voltage is provided at Pin 2, which should be
connected to Pin 3 for use in single-supply applications. The
output of A1 appears at Pin 5. A second operational amplifier,
A2, is configured with a fixed gain of A
V
= 1 and produces an
inverted replica of Pin 5 at Pin 8. The SSM2211 outputs at Pin 5
and Pin 8 produce a bridged configuration output to which a
speaker can be connected. This bridge configuration offers the
advantage of a more efficient power transfer from the input to
the speaker. Because both outputs are symmetric, the dc bias at
Pin 5 and Pin 8 are exactly equal, resulting in zero dc differ-
ential voltage across the outputs. This eliminates the need for a
coupling capacitor at the output.
THERMAL PERFORMANCE—LFCSP
The addition of the LFCSP to the Analog Devices, Inc., package
portfolio offers the SSM2211 user even greater choice when
considering thermal performance criteria. For the 8-lead,
3 mm × 3 mm LFCSP, the θ
JA
is 50°C/W. This is a significant
performance improvement over most other packaging options.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SSM2211-EVAL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Distortion, 1.5 W Audio Power Amplifier |
| SSM2211P | 制造商:Rochester Electronics LLC 功能描述:1 WATT AUDIO AMPLIFIER - Bulk |
| SSM2211S | 制造商:Analog Devices 功能描述:Audio Amp Speaker 1-CH Mono Class-AB 8-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:1 WATT AUDIO AMPLIFIER - Bulk 制造商:Analog Devices 功能描述:IC SM AMP AUDIO POWER 1.5W |
| SSM2211S-REEL | 制造商:Analog Devices 功能描述:Audio Amp Speaker 1-CH Mono Class-AB 8-Pin SOIC N T/R 制造商:Analog Devices 功能描述:IC AMP AUDIO |
| SSM2211S-REEL7 | 制造商:Analog Devices 功能描述:Audio Amp Speaker 1-CH Mono Class-AB 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:1 WATT AUDIO AMPLIFIER - Tape and Reel |
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