SSM2167_07 데이터 시트보기 (PDF) - Analog Devices

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SSM2167_07

Low Voltage Microphone Preamplifier with Variable Compression and Noise Gating

Analog Devices 

SSM2167

TABLE OF CONTENTS

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

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

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

Pin Configuration............................................................................. 1

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

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

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

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

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

Typical Performance Characteristics ............................................. 5

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

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

REVISION HISTORY

11/07—Rev. B to Rev. C

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

Changes to PSRR .............................................................................. 3

Updated Outline Dimensions ....................................................... 11

Changes to Ordering Guide .......................................................... 11

9/03—Rev. A to Rev. B

Deleted SSM2167-2 Model................................................Universal

Changes to Ordering Guide ............................................................ 3

Edits to Figure 2 and Figure 3 ......................................................... 6

Updated Outline Dimensions ......................................................... 9

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

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

Control Circuitry...........................................................................9

Setting the Compression Ratio....................................................9

Setting the Noise Gate Threshold

(Downward Expansion) ............................................................ 10

Rotation Point (Limiting).......................................................... 10

Shutdown Feature....................................................................... 10

PCB Layout Considerations...................................................... 10

Outline Dimensions ....................................................................... 11

Ordering Guide .......................................................................... 11

3/02—Rev. 0 to Rev. A

Edits to Specifications .......................................................................2

Edits to Figure 2 and Figure 3..........................................................6

7/01—Revision 0: Initial Version

Rev. C | Page 2 of 12

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