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| 型號： | MX805J |
| 英文描述： | RF/Baseband Circuit |
| 中文描述： | 射頻/基帶電路 |
| 文件頁數(shù)： | 2/24頁 |
| 文件大?。?/td> | 532K |
| 代理商： | MX805J |
Sub-Audio Signaling Processor
Page 2 of 24
MX805A
2001 MX-COM, Inc.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
All trademarks and service marks are held by their respective companies.
Doc. # 20480116.005
Contents
Section
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
Read Status Register –A/C 71H (79H) followed by 1 byte of Rely Data. ............................... 13
5.2.4
Read CTCSS RX Frequency Register –A/C 72H (7AH) followed by 2 bytes of Reply Data.. 13
5.2.5
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
Read NRZ RX Data Register – A/C 74H (7CH) followed by 1 byte Reply Data..................... 17
5.2.7
Write to NRZ TX Data Register – A/C 75H (7DH) followed by 1 byte of Command Data...... 17
5.2.8
Write to Gain Set Register – A/C 76H (7EH) followed by 1 byte of Command Data.............. 17
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| MX806ALH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Processor |
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