MX805AP データシートの表示（PDF） - MX-COM Inc

部品番号

コンポーネント説明

メーカー

MX805AP

Sub-Audio Signaling Processor

MX-COM Inc  

Sub-Audio Signaling Processor

Section

2

Contents

MX805A

Page

1 Block Diagram................................................................................................................ 4

2 Signal List....................................................................................................................... 5

3 External Components.................................................................................................... 7

3.1 Input configurations ............................................................................................................. 8

3.1.1 Using and External Op-Amp ..................................................................................................... 8

4 General Description....................................................................................................... 9

4.1 Glossary .............................................................................................................................. 9

4.2 Operating Modes ................................................................................................................. 9

4.2.1 NRZ Encoding........................................................................................................................... 9

4.2.2 CTCSS Encoding...................................................................................................................... 9

4.2.3 NRZ Decoding ........................................................................................................................ 10

4.2.4 CTCSS Decoding.................................................................................................................... 10

5 Controlling Protocol .................................................................................................... 10

5.1 MX805A Internal Registers................................................................................................ 10

5.1.1 Control Register (70H/78H) .................................................................................................... 10

5.1.2 Status Register (71H/79H)...................................................................................................... 10

5.1.3 CTCSS Rx Frequency Register (72H/7AH) ............................................................................ 10

5.1.4 CTCSS Tx Frequency/NRZ Tx or Rx Baud Rate Register (73H/7BH) ................................... 10

5.1.5 NRZ Rx Data Register (74H/7CH) .......................................................................................... 10

5.1.6 NRZ Tx Data Register (75H/7DH) .......................................................................................... 10

5.1.7 Gain Set Register (76H/7EH).................................................................................................. 10

5.2 Address/Commands .......................................................................................................... 11

5.2.1 Write to Control Register - A/C 70H (78H) followed by 1 byte of Command Data.................. 12

5.2.2 General Reset......................................................................................................................... 12

5.2.3

5.2.4

5.2.5

Read Status Register –A/C 71H (79H) followed by 1 byte of Rely Data................................. 13

Read CTCSS RX Frequency Register –A/C 72H (7AH) followed by 2 bytes of Reply Data .. 13

Write to CTCSS TX Frequency/NRZ Baud Data Rate Register –A/C 73H (7BH) followed

by 2 bytes of Command Data. ................................................................................................ 15

5.2.6

5.2.7

5.2.8

Read NRZ RX Data Register – A/C 74H (7CH) followed by 1 byte Reply Data ..................... 17

Write to NRZ TX Data Register – A/C 75H (7DH) followed by 1 byte of Command Data. ..... 17

Write to Gain Set Register – A/C 76H (7EH) followed by 1 byte of Command Data .............. 17

1998 MX-COM, Inc.

www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054

Doc. # 20480116.004

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

All trademarks and service marks are held by their respective companies.

Share Link: