© 1999 Consumer Microcircuits Limited

2

D/018/3

CONTENTS

Section

Page

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

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

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

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

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

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

1.5.1 Low Noise Amplifier....................................................................... 7

1.5.2 First Down-Converter .................................................................... 7

1.5.3 Second Down-Converter ............................................................... 7

1.5.4 Limiting Amplifier and RSSI.......................................................... 7

1.5.5 FM/FSK Demodulator..................................................................... 8

1.5.6 Zero-Power Mode ........................................................................... 8

1.6 Application Notes........................................................................................... 9

1.6.1 General ............................................................................................ 9

1.6.2 Example Schematic and Layout ................................................... 9

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

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

1.7.2 Packaging ..................................................................................... 15

1.7.3 Handling Precautions .................................................................. 15

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.