SSM2211SZ-REEL7 Analog Devices Inc, SSM2211SZ-REEL7 Datasheet

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SSM2211SZ-REEL7

Manufacturer Part Number
SSM2211SZ-REEL7
Description
IC,Audio Amplifier,SINGLE,CMOS,SOP,8PIN,PLASTIC
Manufacturer
Analog Devices Inc
Type
Class ABr
Datasheet

Specifications of SSM2211SZ-REEL7

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
1.5W x 1 @ 4 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
Differential Inputs, Shutdown
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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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 @ 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 SSM2211
delivers 1 W rms of low distortion audio power into a bridge-
connected 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% THD
+ N @ 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 V
delivers a 1.5 W output.
1
Rev. E
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 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.
Trademarks and registered trademarks are the property of their respective owners.
Protected by U.S. Patent No. 5,519,576.
1
S
is a high performance audio amplifier that
= 5 V on a four-layer PCB, the SSM2211
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
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) surface-
mount 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.
SHUTDOWN
Low Distortion, 1.5 W Audio
BYPASS
IN–
IN+
FUNCTIONAL BLOCK DIAGRAM
BIAS
©2008 Analog Devices, Inc. All rights reserved.
Figure 1.
V– (GND)
Power Amplifier
SSM2211
SSM2211
www.analog.com
V
V
OUT
OUT
A
B

Related parts for SSM2211SZ-REEL7

SSM2211SZ-REEL7 Summary of contents

Page 1

FEATURES 1.5 W output with THD + N < 1% Differential bridge-tied load output Single-supply operation: 2 5.5 V Functions down to 1.75 V Wide bandwidth: 4 MHz Highly stable phase margin: >80° Low distortion: 0.2% THD + ...

Page 2

SSM2211 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Electrical Characteristics ................................................................. 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 ...

Page 3

ELECTRICAL CHARACTERISTICS 25° Ω 0.1 μ Table 1. Parameter GENERAL CHARACTERISTICS Differential Output Offset Voltage Output Impedance SHUTDOWN CONTROL Input Voltage High Input Voltage ...

Page 4

SSM2211 25° Ω 0.1 μ Table 3. Parameter GENERAL CHARACTERISTICS Differential Output Offset Voltage Output Impedance SHUTDOWN CONTROL Input Voltage High Input Voltage Low ...

Page 5

ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings apply otherwise noted. Table 4. Parameter Supply Voltage Input Voltage Common-Mode Input Voltage ESD Susceptibility Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature, Soldering (60 sec) Stresses above ...

Page 6

SSM2211 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS SHUTDOWN 1 SSM2211 BYPASS 2 IN+ 3 TOP VIEW (Not to Scale) IN– 4 Figure 2. 8-Lead SOIC_N Pin Configuration (R-8) Table 6. Pin Function Descriptions Pin No. Mnemonic 1 SHUTDOWN 2 BYPASS 3 ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 25° (BTL 8Ω 500mW 0.1μ 1μF B 0.1 0.01 ...

Page 8

SSM2211 25° (BTL 8Ω L FREQUENCY = 20Hz C = 0.1μ 0.1 0.01 20n 0.1 P (W) OUTPUT Figure 10. THD + N vs. ...

Page 9

T = 25° 3. (BTL 8Ω L FREQUENCY = 20Hz C = 0.1μ 0.1 0.01 20n 0.1 P (W) OUTPUT Figure 16. THD + N vs. P ...

Page 10

SSM2211 25° 2. (BTL 8Ω L FREQUENCY = 20Hz 1 0.1 0.01 20n 0.1 P (W) OUTPUT Figure 22. THD + N vs ...

Page 11

T = 25° 2. (BTL 8Ω L FREQUENCY = 20Hz C = 0.1μ 3.3V DD 0.1 0.01 20n 0.1 P (W) OUTPUT Figure 28. THD ...

Page 12

SSM2211 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 2. LOAD RESISTANCE (Ω) Figure 34. P vs. Load Resistance OUTPUT –20 –40 –60 –80 100 1k ...

Page 13

3. SAMPLE SIZE = 300 SAMPLE SIZE = 300 –30 –20 – OUTPUT OFFSET VOLTAGE (mV) Figure 38. Output Offset Voltage Distribution 600 V = ...

Page 14

SSM2211 PRODUCT OVERVIEW The SSM2211 is a low distortion speaker amplifier that can run from a 2 5.5 V supply. It consists of a rail-to-rail input and a differential output that can be driven within 400 mV of ...

Page 15

TYPICAL APPLICATIONS AUDIO – INPUT 5 SSM2211 Figure 42. Typical Configuration Figure 42 shows how the SSM2211 is connected in a ...

Page 16

SSM2211 POWER DISSIPATION Another important advantage in using a BTL configuration is the fact that bridged-output amplifiers are more efficient than single-ended amplifiers in delivering power to a load. Efficiency is defined as the ratio of the power from the ...

Page 17

0.30 0.25 0.20 0.15 0. 16Ω 0.1 0.2 OUTPUT POWER (W) Figure 45. Power Dissipation vs. Single-Ended Output Power with The maximum power dissipation ...

Page 18

SSM2211 The input signal to the SSM2211 is also connected to the non- inverting terminal of A2. R1, R2, and R3 set the threshold voltage at which the SSM2211 taken out of shutdown mode. The diode, D1, ...

Page 19

The extra supply voltage also allows the SSM2211 to reproduce peaks in excess without clipping the signal. With and Ω, Equation 9 shows that DD L the maximum ...

Page 20

SSM2211 The polarity of the speakers is important because each output is 180° out of phase with the other. By connecting the negative terminal of Speaker 1 to Pin 5 and the positive terminal of Speaker 2 to Pin 8, ...

Page 21

OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY PIN 1 INDICATOR 0.90 MAX 0.85 NOM SEATING PLANE 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 8° ...

Page 22

... SSM2211S-REEL7 –40°C to +85°C SSM2211SZ 1 –40°C to +85°C 1 SSM2211SZ-REEL –40°C to +85°C 1 SSM2211SZ-REEL7 –40°C to +85°C SSM2211-EVAL 1 SSM2211-EVALZ RoHS Compliant Part; # denotes RoHS compliant product may be top or bottom marked. Package Description Package Option 8-Lead LFCSP_VD ...

Page 23

NOTES Rev Page SSM2211 ...

Page 24

SSM2211 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00358-0-4/08(E) Rev Page ...

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