SSM2018

Data Sheet

Rev. C | Page 2 of 16

TABLE OF CONTENTS

Features .............................................................................................. 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Electrical Specifications............................................................... 3

Absolute Maximum Ratings............................................................ 4

Transistor Count........................................................................... 4

Thermal Resistance ...................................................................... 4

ESD Caution.................................................................................. 4

Pin Configuration and Function Descriptions............................. 5

Typical Performance Characteristics ............................................. 6

Theory of Operation ...................................................................... 10

Compensating the SSM2018..................................................... 10

Control Section........................................................................... 11

Applications Information .............................................................. 12

Basic VCA Configuration ......................................................... 12

Proper Operating Mode for the SSM2018 .............................. 12

Output Drive............................................................................... 13

Upgrading SSM2018 Sockets.................................................... 13

Temperature Compensation of the Gain Constant ............... 13

Digital Control of the Gain....................................................... 14

Supply Considerations and Single-Supply Operation........... 14

Operational Voltage Controlled Element................................ 14

Voltage Controlled Panner........................................................ 15

Outline Dimensions....................................................................... 16

Ordering Guide .......................................................................... 16

REVISION HISTORY

2/13—Rev. B to Rev. C

Updated Format..................................................................Universal

Reorganized Layout............................................................Universal

Changed SSM2018T to SSM2018................................ Throughout

Changes to Table 2 and Transistor Count Section ........................4

Added Table 4.....................................................................................5

Changed Theory of Operation of the SSM2018T Section to

Theory of Operation Section; Changes to Figure 28 ..................10

Changes to Control Section ...........................................................11

Changed Applications Section to Applications Information

Section, Changes to Basic VCA Configuration Section.............12

Changes to Output Drive Section, Upgrading SSM2018 Sockets

Section, Temperature Compensation of the Gain Constant

Section, Figure 30, and Figure 31 ..................................................13

Changes to Digital Control of the Gain Section..........................14

Updated Outline Dimensions........................................................16

Changes to Ordering Guide ...........................................................16

7/02—Rev. A to Rev. B

Deleted references to SSM2118T...........................................Global

Edits to Features ................................................................................1

Edits to General Description ...........................................................1

Deleted SSM2118T Functional Block Diagram ............................1

Deleted 16-Lewad Plastic DIP and SOL from

Pin Configurations............................................................................3

Edits to Ordering Guide ...................................................................3

Deleted SSM2118T Typical Application Circuit ...........................3

Deleted TPCs ................................................................................ 7–8

Edits to Applications ...................................................................... 10

Deleted section Basic VCA Configuration For

The SSM21218T ............................................................................. 11