Low Voltage SPM Detector

CMX631A

© 1998 Consumer Microcircuits Limited

2

D/631A/1

CONTENTS

Section

Page

Features and Applications .................................................................................................. 1

Brief Description .................................................................................................................. 1

1 Block Diagram ................................................................................................................... 3

2 Signal List .......................................................................................................................... 4

3 External Components ....................................................................................................... 5

4 General Description .......................................................................................................... 6

4.1 Tone Follower Mode .............................................................................................................. 6

4.2 Packet Mode.......................................................................................................................... 6

4.3 Sensitivity Setting................................................................................................................... 7

4.4 ‘WILL’/’WILL-NOT’ Detect Frequencies ................................................................................ 9

5 Applications....................................................................................................................... 9

5.1 Input Configurations............................................................................................................... 9

5.1.1 Protection Against High Voltages ................................................................................................. 9

5.1.2 Aliasing ....................................................................................................................................... 10

The ‘Clock-Out’ Pin.............................................................................................................................. 10

6 Performance Specification ............................................................................................. 11

6.1 Electrical Specifications ....................................................................................................... 11

6.1.1 Absolute Maximum Ratings........................................................................................................ 11

6.1.2 Operating Limits ......................................................................................................................... 11

6.1.3 Operating Characteristics ........................................................................................................... 12

6.2 Packages ............................................................................................................................. 14