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SSM2250

更新时间： 2024-11-02 22:42:43
品牌 Logo 应用领域
亚德诺 - ADI 放大器功率放大器
页数 文件大小 规格书
10页 290K
描述
Mono 1.5 W/Stereo 250 mW Power Amplifier

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Mono 1.5 W/Stereo 250 mW  
Power Amplifier  
a
SSM2250  
PIN CONFIGURATIONS  
10-Lead MSOP  
FEATURES  
Part of SoundMax® Audio Solution for Desktop Computers  
Mono 1.5 W Differential or Stereo 250 mW Output  
Single-Supply Operation: 2.7 V to 6 V  
Low Shutdown Current = 60 ␮A  
PC 99 Compliant  
(RM Suffix)  
LEFT IN  
1
2
10 LEFT OUT/BTL–  
V
SHUTDOWN  
9
8
7
6
DD  
Low Distortion: 0.2% THD at 1.5 W  
Wide Bandwidth: 4 MHz  
Unity-Gain Stable  
3
4
5
BTL+  
SE/BTL  
GND  
SSM2250  
BYPASS  
RIGHT OUT  
RIGHT IN  
APPLICATIONS  
Desktop, Portable or Palmtop Computers  
Sound Cards  
Communication Headsets  
2-Way Communications  
Handheld Games  
14-Lead TSSOP  
(RU Suffix)  
NC  
LEFT IN  
SHUTDOWN  
SE/BTL  
؉GND  
RIGHT IN  
NC  
NC  
1
14  
LEFT OUT/BTL  
GENERAL DESCRIPTION  
V
DD  
BTL؉  
SSM2250  
The SSM2250 is intended for use in desktop computers that have  
basic audio functions. It is also ideal for any audio system that needs  
to provide both an internal monaural speaker and a stereo line or  
headphone output. Combined with an AC’97 Codec it provides a  
PC audio system that meets the PC 99 requirements. The SSM2250  
is compact and requires a minimum of external components.  
BYPASS  
RIGHT OUT  
NC  
7
8
NC = NO CONNECT  
V
DD  
The SSM2250 features an audio amplifier capable of delivering  
1.5 W of low distortion power into a mono 4 Ω bridged-tied load  
(BTL) or 2 ϫ 90 mW into stereo 32 Ω single-ended load (SE)  
headphones. Both amplifiers provide rail-to-rail outputs for maxi-  
mum dynamic range from a single supply. The balanced output  
provides maximum output from 5 V supply and eliminates the  
need for a coupling capacitor.  
LEFT IN  
LEFT SE/  
MONO BTL  
OUT–  
A1  
BYPASS  
CAP  
MONO BTL  
OUT+  
A2  
V
DD  
The SSM2250 can automatically switch between an internal  
mono speaker and external headphones. The device can run from  
a single supply, ranging from 2.7 V to 6 V, with an active supply  
current of 9 mA typical. The ability to shut down the amplifiers,  
(60 µA shutdown current) makes the SSM2250 an ideal speaker  
amplifier for battery-powered applications.  
RIGHT IN  
RIGHT  
SE OUT  
A3  
BTL/SE  
SELECT  
SWITCHING  
CIRCUITRY  
The SSM2250 is specified over the industrial (–40°C to +85°C)  
temperature range. It is available in 14-lead TSSOP and 10-lead  
MSOP surface mount packages.  
V
DD  
CLICK AND POP  
REDUCTION  
BIAS  
SHUT-  
DOWN  
GND  
Figure 1. Functional Block Diagram  
SoundMax is a registered trademark of Analog Devices, Inc.  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  
1234567...10

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