SSM2166

Data Sheet

Rev. E | Page 2 of 20

TABLE OF CONTENTS

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

Applications....................................................................................... 1

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

Functional Block Diagram and Typical Speech Application ...... 1

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

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

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

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

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

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

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

Theory of Operation ........................................................................ 8

Applications Information ............................................................ 8

Signal Path......................................................................................8

Level Detector................................................................................9

Control Circuitry........................................................................ 10

Power-Down Feature ................................................................. 12

PCB Layout Considerations...................................................... 12

Evaluation Board ............................................................................ 13

Evaluation Board Examples ...................................................... 14

Evaluation Board Setup Procedure.......................................... 15

Test Equipment Setup................................................................ 15

Setup Summary .......................................................................... 16

Outline Dimensions....................................................................... 17

Ordering Guide .......................................................................... 17

REVISION HISTORY

10/13—Rev. D to Rev. E

Change to Compression Ratio Section........................................ 10

Changes to Ordering Guide .......................................................... 17

7/08—Rev. C to Rev. D

Changes to Figure 4 through Figure 9 ........................................... 6

Changes to Figure 11 and Figure 12............................................... 7

Changes to Figure 19...................................................................... 10

Changes to Figure 26...................................................................... 13

Added Top Branding Revision Reflecting Die Replacement

Table ................................................................................................. 17

5/08—Rev. B to Rev. C

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

Changes to Features Section and General Description

Section................................................................................................ 1

Changes to Table 1............................................................................ 3

Changes to Table 2............................................................................ 4

Deleted TPC 3; Renumbered Sequentially.................................... 4

Changes to Table 4, Pin 8 Description Column ........................... 5

Changes to Figure 5, Figure 6, Figure 8, and Figure 9 ................. 6

Change to Figure 11 ..........................................................................7

Changes to Signal Path Section .......................................................9

Added Figure 19 ............................................................................. 10

Deleted Figure 14 and Figure 17 .................................................. 12

Deleted Other Versions Section ................................................... 13

Changes to Figure 26...................................................................... 13

Changes to Figure 27...................................................................... 14

Changes to Test Equipment Section ............................................ 15

Added Table 6 ................................................................................. 16

Added Table 7 ................................................................................. 16

Updated Outline Dimensions....................................................... 17

Changes to Ordering Guide.......................................................... 17

3/03—Rev. A to Rev. B

Deleted PDIP Package .......................................................Universal

Change to General Description.......................................................1

Changes to Thermal Characteristics...............................................2

Changes to Ordering Guide.............................................................2

Deleted 14-Lead PDIP, Outline Dimensions .............................. 15

Updated 14-Lead Narrow-Body SOIC, Outline Dimensions... 15