CTCSS Signalling Processor
FX818
CONTENTS
Section
Page
1.0 Features .......................................................................................................... 1
1.2 Block Diagram ................................................................................................ 3
1.3 Signal List ....................................................................................................... 4
1.3 Signal List ....................................................................................................... 4
1.4 External Components .................................................................................... 6
1.4 External Components .................................................................................... 6
1.5 General Description ....................................................................................... 7
1.5.1 Software Description
..................................................................... 7
1.6 Application Notes......................................................................................... 18
1.6.1 General
.......................................................................................... 18
1.6.2 Transmitter
................................................................................... 18
1.6.3 Receiver (Decode)
........................................................................ 18
1.6.4 Receiver (Fast Detect)
................................................................. 19
1.6.5 General Purpose Timer................................................................
19
1.6.6 Tx / Fast Rx Tone Table
............................................................... 19
1.6.7 Rx Program Tone Table...............................................................
20
1.7 Performance Specification .......................................................................... 21
1.7.1 Electrical Performance
................................................................ 21
1.7.2 Packaging
..................................................................................... 26
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.
©
1997
Consumer Microcircuits Limited
2
D/818/4