© 1999 Consumer Microcircuits Limited

2

D/017/3

CONTENTS

Section

Page

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

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

1.2 Block Diagram ................................................................................................ 3

1.3 Signal List ....................................................................................................... 4

1.4 External Components .................................................................................... 6

1.5 General Description ....................................................................................... 7

1.5.1 FM/FSK Modulator + PA Driver ..................................................... 7

1.5.2 Power Amplifier .............................................................................. 7

1.5.3 Powersave and Zero-Power Modes.............................................. 7

1.6 Application Notes........................................................................................... 8

1.6.1 Generation of the Modulated RF Signal....................................... 8

1.6.2 Powersave and Zero-Power Modes.............................................. 9

1.6.3 Lower Power Applications ............................................................ 9

1.6.4 Example Schematic and Layout ................................................... 9

1.7 Performance Specification .......................................................................... 12

1.7.1 Electrical Performance ................................................................ 12

1.7.2 Packaging ..................................................................................... 14

1.7.3 Handling Precautions .................................................................. 14

Note:

As this product is still in development, it is likely that a number of changes and additions will be made to

this specification. Items marked TBD or left blank will be included in later issues. Information in this

data sheet should not be relied upon for final product design.