- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383645 > MT9122AP (Mitel Networks Corporation) CMOS Dual Voice Echo Canceller with Tone Detection PDF資料下載
參數(shù)資料
| 型號： | MT9122AP |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | CMOS Dual Voice Echo Canceller with Tone Detection |
| 中文描述： | CMOS雙語音回聲消除的音偵測 |
| 文件頁數(shù)： | 12/32頁 |
| 文件大小： | 143K |
| 代理商： | MT9122AP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁當前第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
MT9122
Preliminary Information
8-28
Function
Controllerless
selected when pins CONFIG1 & 2
≠
00
Controller
selected when pins CONFIG1 & 2 = 00
Normal Configuration
Set pins CONFIG1 to 1 and CONFIG2 1 to select this
configuration.
Set bits Extended-Delay to 0 and BBM to 0 in Control Reg-
ister 1 to select.
Back-to-Back
Configuration
Set pins CONFIG1 to 1 and CONFIG2 to 0 to select
this configuration.
Set bit BBM to 1 in Control Register 1 to select.
Extended Delay
Configuration
Set pins CONFIG1 to 0 and CONFIG2 to 1 to select
this configuration.
Set bit Extended-Delay to 1 in Control Register 1 to select.
Mute
Set pins S2/S1 to 00 and S4/S3 to 00 to select for Echo
Canceller A and Echo Canceller B respectively.
Set bit MuteR to 1 or MuteS to 1 in Control Register 2 to
select.
Bypass
Set pins S2/S1 to 01 and S4/S3 to 01 to select for Echo
Canceller A and Echo Canceller B, respectively.
Set bit Bypass to 1 in Control Register 1 to select.
Disable Adaptation
Set pins S2/S1 to 10 and S4/S3 to 10 to select for Echo
Canceller A and Echo Canceller B, respectively.
Set bit AdaptDis to 1 in Control Register 1 to select.
Enable Adaptation
Set pins S2/S1 to 11 and S4/S3 to 11 to select for Echo
Canceller A and Echo Canceller B, respectively.
Set bits AdaptDis to 0 and Bypass to 0 in Control Register
1 to select.
SSI
Tie pin F0i to VSS to select.
Tie pin F0i to VSS to select.
ST-BUS
Apply a valid ST-BUS frame pulse to F0i pin to select.
Apply a valid ST-BUS frame pulse to F0i pin to select.
12dB Attenuator
Always disabled.
Set bit PAD to 1 in Control Register 1 to enable.
Double-Talk
Detector
Continuously enabled which disables filter adaptation
when double-talk is detected.
The detection threshold can be controlled via Double-Talk
Detection Threshold Register 1 and 2.
Disable Tone
Detector
It is continuously enabled and puts TD1 or TD2 or both
into active low when disable tone is detected. The TD1
and TD2 outputs have to be externally manipulated by
the user to bypass the echo canceller.
Set bit TDis to 1 in Control Register 2 to disable tone
detectors.
Disable Tone
Set pin REV to 1 to select disable tone with phase
reversal (G.165).
Set bit PHDis to 1 in Control Register 2 to select disable
tone without phase reversal (G164).
Non-Linear
Processor
Set pin NLP to 1 to enable.
Set bit NLPDis to 1 to disable.
PCM Law
Set pin LAW to 1 or 0 to select A-Law or
μ
-Law
respectively.
Set pin LAW to 1or 0 to select A-Law or
μ
-Law
respectively.
PCM Format
Set pin FORMAT to 0 or 1 to select Sign-Magnitude or
ITU-T format respectively.
Set pin FORMAT to 0 or 1 to select Sign-Magnitude or
ITU-T format respectively.
Narrow-Band Signal
Detector
Continuously enabled which disables the filter adapta-
tion when narrow band signal is detected.
Set bit NBDis to 1 in Control Register 2 to disable.
Offset Null Filter
Continuously enabled which removes the DC compo-
nent in the PCM input.
Set bit HPFDis to 1 in Control Register 2 to disable.
Table 7 - MT9122 Function Control Summary
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT9123AE | CMOS Dual Voice Echo Canceller |
| MT9123 | Dual Voice Echo Canceller(雙話音回聲消除器) |
| MT9123AP | CMOS Dual Voice Echo Canceller |
| MT9125AE | CMOS Dual ADPCM Transcoder |
| MT9125AP | CMOS Dual ADPCM Transcoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9122AP1 | 制造商:Zarlink Semiconductor Inc 功能描述:ECHO CANCELLER CHIP 2CH G.164/G.165/G.711 W/ TONE DETECTION - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE DUAL VOICE ECHO CANCELLER W/TD |
| MT9122APR1 | 制造商:Zarlink Semiconductor Inc 功能描述:ECHO CANCELLER CHIP 2CH G.164/G.165/G.711 W/ TONE DETECTION - Tape and Reel |
| MT9123 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS Dual Voice Echo Canceller |
| MT9123AE | 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 2CH G.165/G.711 W/OUT TONE DETECTION 28P - Rail/Tube |
| MT9123AE1 | 制造商:Microsemi Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。