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SSM2211 Dataheets PDF



Part Number SSM2211
Manufacturers Analog Devices
Logo Analog Devices
Description Low Distortion 1.5W Audio Power Amplifier
Datasheet SSM2211 DatasheetSSM2211 Datasheet (PDF)

Data Sheet FEATURES 1.5 W output with THD + N < 1% Differential bridge-tied load output Single-supply operation: 2.7 V to 5.5 V Functions down to 1.75 V Wide bandwidth: 4 MHz Highly stable phase margin: >80° Low distortion: 0.2% THD + N at 1 W output Excellent power supply rejection APPLICATIONS Portable computers Personal wireless communicators Hands-free telephones Speaker phones Intercoms Musical toys and talking games GENERAL DESCRIPTION The SSM22111 is a high performance audio amplifier tha.

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Data Sheet FEATURES 1.5 W output with THD + N < 1% Differential bridge-tied load output Single-supply operation: 2.7 V to 5.5 V Functions down to 1.75 V Wide bandwidth: 4 MHz Highly stable phase margin: >80° Low distortion: 0.2% THD + N at 1 W output Excellent power supply rejection APPLICATIONS Portable computers Personal wireless communicators Hands-free telephones Speaker phones Intercoms Musical toys and talking games GENERAL DESCRIPTION The SSM22111 is a high performance audio amplifier that delivers 1 W rms of low distortion audio power into a bridgeconnected 8 Ω speaker load (or 1.5 W rms into a 4 Ω load). The SSM2211 operates over a wide temperature range and is specified for single-supply voltages between 2.7 V and 5.5 V. When operating from batteries, it continues to operate down to 1.75 V. This makes the SSM2211 the best choice for unregulated applications, such as toys and games. Featuring a 4 MHz bandwidth and distortion below 0.2% total harmonic distortion plus noise (THD + N) at 1 W, superior performance is delivered at higher power or lower speaker load impedance than competitive units. Furthermore, when the ambient temperature is at 25°C, THD + N < 1%, and VS = 5 V on a 4-layer printed circuit board (PCB), the SSM2211 delivers a 1.5 W output. Low Distortion, 1.5 W Audio Power Amplifier SSM2211 FUNCTIONAL BLOCK DIAGRAM IN– VOUTA IN+ BYPASS SHUTDOWN VOUTB BIAS V– (GND) Figure 1. SSM2211 00358-001 The low differential dc output voltage results in negligible losses in the speaker winding and makes high value dc blocking capacitors unnecessary. The battery life is extended by using shutdown mode, which typically reduces quiescent current drain to 100 nA. The SSM2211 is designed to operate over the −40°C to +85°C temperature range. The SSM2211 is available in 8-lead SOIC (narrow body) and LFCSP (lead frame chip scale) surfacemount packages. The advanced mechanical packaging of the LFCSP models ensures lower chip temperature and enhanced performance relative to standard packaging options. Applications include personal portable computers, hands-free telephones and transceivers, talking toys, intercom systems, and other low voltage audio systems requiring 1 W output power. 1 Protected by U.S. Patent No. 5,519,576. Rev. G Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2002–2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com SSM2211 Data Sheet TABLE OF CONTENTS Features .............


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