Evaluation Kit for CMX838 Family Radio Processor
2
EV8380 User Manual
CONTENTS
Section ..........................................................................................................................Page
1 Preliminary Information ................................................................................................ 4
1.1 Laboratory Equipment........................................................................................................... 4
1.2 Handling Precautions............................................................................................................ 4
1.2.1
1.2.2
Static Protection...................................................................................................................... 4
Contents - Unpacking ............................................................................................................. 4
2 General Description ...................................................................................................... 4
3 Operation ....................................................................................................................... 4
3.1 Setting-Up............................................................................................................................. 4
3.2 EV8380 Graphical User Interface (GUI)................................................................................ 6
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
General Comments................................................................................................................. 6
Starting the EV8380 GUI ........................................................................................................ 6
EV8380 GUI Buttons and Text Boxes .................................................................................... 6
EV8380 GUI Examples: Direct Register Operations .............................................................. 7
EV8380 GUI Examples: Using Text Script Files with the “SEND FILE” Utility ....................... 7
Creating EV8380 Text Script Files ......................................................................................... 7
3.3 EV8380 External Connections ............................................................................................ 10
4 General Notes.............................................................................................................. 11
4.1 Baseband Clock Generation ............................................................................................... 11
4.1.1
4.1.2
4.2.1
Using the RF Reference Oscillator as the CMX838 Clock Source....................................... 11
Using External Sources as the CMX838 Clock Source........................................................ 11
Power-Up Initialization Sequence for CMX838 .................................................................... 14
4.2 Subaudio Processing .......................................................................................................... 12
5 Programming Examples ............................................................................................. 14
5.1 Device Setup ...................................................................................................................... 14
5.2 Tone Signaling Processor Examples .................................................................................. 17
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.3.1
5.3.2
5.4.1
5.4.2
How to Generate a Standard CTCSS Tone ......................................................................... 17
How to Generate A User-Defined TX Subaudio Tone.......................................................... 17
How to Generate an Audio Tone at the AUX I/O Pin............................................................ 17
How to Detect a Standard CTCSS Tone .............................................................................. 18
How to Quickly Enable/Disable Multiple Detectors............................................................... 19
How to Detect a User-Defined Subaudio Tone .................................................................... 20
How to Generate “Melody Tone” And Process It with the CMX838 ..................................... 21
How to Use Pre-Emphasis/De-Emphasis ............................................................................. 21
How to Change an FRS RF Channel ................................................................................... 22
How to Set the IF Offset For A FRS RX Channel................................................................. 22
5.3 Audio Filtering Examples .................................................................................................... 21
5.4 RF Programming Examples ................................................................................................ 22
5.5 Modulation Section Programming Example ........................................................................ 22
¤
2001 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480230.001
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
CMLMICRO [ CML MICROCIRCUITS ]
