參數(shù)資料
型號(hào)： MT93L04
廠商： Zarlink Semiconductor Inc.
英文描述： 128-Channel Voice Echo Canceller
中文描述： 128頻道語(yǔ)音回聲消除器
文件頁(yè)數(shù)： 38/56頁(yè)
文件大?。?/td> 903K
代理商： MT93L04
MT93L04
Data Sheet
38
Zarlink Semiconductor Inc.
The Exponential Decay registers (Decay Step Number and Decay Step Size) and Flat Delay register allow the LMS
adaptation step-size (MU) to be programmed over the length of the FIR filter. A programmable MU profile allows the
performance of the echo canceller to be optimized for specific applications. For example, if the characteristic of the
echo response is known to have a flat delay of several milliseconds and a roughly exponential decay of the echo
impulse response, then the MU profile can be programmed to approximate this expected impulse response thereby
improving the convergence characteristics of the Adaptive Filter. Note that in the following register descriptions, one
tap is equivalent to 125
μ
s (64 ms/512 taps).
FD7
FD6
FD5
FD4
FD2
FD1
FD0
FD3
Power Reset Value
00h
7
6
5
4
3
2
1
0
Echo Canceller A, Flat Delay Register (FD)
Echo Canceller B, Flat Delay Register (FD)
Read/Write Address:
04h
+ Base Address
Read/Write Address:
24h
+ Base Address
Power Reset Value
00h
7
6
5
4
3
2
1
0
NS7
NS6
NS5
NS4
NS2
NS1
NS0
NS3
Echo Canceller A, Decay Step Number Register (NS)
Echo Canceller B, Decay Step Number Register (NS)
Read/Write Address:
07h
+ Base Address
Read/Write Address:
27h
+ Base Address
Power Reset Value
04h
7
6
5
4
3
2
1
0
0
0
0
0
SSC2
SSC1
SSC0
0
Echo Canceller A, Decay Step Size Control Register (SSC)
Echo Canceller B, Decay Step Size Control Register (SSC)
Read/Write Address:
06h
+ Base Address
Read/Write Address:
26h
+ Base Address
Note: Bits marked with “0” are reserved bits and should be written “0”.
Amplitude of MU
Time
Flat Delay (FD
7-0
)
Step Size (SS)
1.0
2-16
FIR Filter Length (512 or 1024 taps)
Number of Steps (NS
7-0
)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT93L04A 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:128-Channel Voice Echo Canceller
MT93L04AG 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 128CH G.164/G.165/G.168/G.711 W/ TONE DE - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCEL 365MCMBGA
MT93L04AG2 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 128CH G.164/G.165/G.168/G.711 W/ TONE DE - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCEL 365MCMBGA 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCEL 365MCMBGA
MT93L16 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:AEC with Noise Reduction & Codecs for Digital Hands-Free Communication
MT93L16AF 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 2CH G.711 W/OUT TONE DETECTION 48TQFP - Rail/Tube
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