參數(shù)資料
型號(hào)： ZL50232GD
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 數(shù)字傳輸電路
英文描述： DATACOM, ISDN ECHO CANCELLER, PBGA208
封裝： 17 X 17 MM, 1.30 MM HEIGHT, LBGA-208
文件頁(yè)數(shù)： 25/41頁(yè)
文件大?。?/td> 809K
代理商： ZL50232GD
ZL50232
Data Sheet
31
Zarlink Semiconductor Inc.
Power-up
54hex
ECA: Control Register 4
R/W Address:
09hex + Base Address
ECB: Control Register 4
R/W Address:
29hex + Base Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
SD2
SD1
SD0
0
Slow2
Slow1
Slow0
Functional Description of Register Bits
0
Must be set to zero.
SupDec
These three bits (SD2,SD1,SD0) control how long the echo canceller remains in a fast
convergence state following a path change, Reset or Bypass operation. A value of zero will keep
the echo canceller in fast convergence indefinitely.
0
Must be set to zero.
Slow
Slow convergence mode speed adjustment.(Bits Slow2, Slow1,Slow0)
For Slow = 1, 2, ..., 7, slow convergence speed is reduced by a factor of 2Slow as compared to
normal adaptation.
For Slow = 0, no adaptation occurs during slow convergence.
Power-up
16hex
ECA: Noise Scaling (NS)
R/W Address:
0Ahex + Base Address
ECB: Noise Scaling (NS)
R/W Address:
2Ahex + Base Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
NS7
NS6
NS5
NS4
NS3
NS2
NS1
NS0
Functional Description of Register Bits
This register is used to scale the comfort noise up or down. Larger values will increase the relative level of
comfort noise. The default value of 16hex will provide G.168 compliance with the Advanced NLP. A value of
74hex is recommended if the original NLP is used.
Power-up
45hex
ECA: Noise Control
R/W Address:
0Bhex + Base Address
ECB: Noise Control
R/W Address:
2Bhex + Base Address
Bit 7
Bit 6Bit 5Bit 4Bit 3Bit 2
Bit 1
Bit 0
Reserve
NLInc3
NLInc2
NLInc1
NLInc0
Functional Description of Register Bits
Reserve
Reserved bits. Must be set to 4hex for normal operation.
NLInc
Noise level estimator ramping rate. When InjCtrl = 1, a lower value will give faster ramping.
When InjCtrl = 0, a higher value will give faster ramping. The default value of 5hex will provide
G.168 compliance with InjCtrl = 1. A value of Chex is recommended if InjCtrl = 0.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50232GDC 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:32 Channel Voice Echo Canceller
ZL50232GDG2 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 32CH G.165/G.168/G.711 W/ TONE DETECTION - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCELLER 208LBGA 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCELLER 208LBGA
ZL50232QCC 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:32 Channel Voice Echo Canceller
ZL50232QCC1 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:32 Channel Voice Echo Canceller
ZL50232QCG1 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 32CH G.165/G.168/G.711 W/ TONE DETECTION - Trays 制造商:Microsemi Corporation 功能描述:PB FREE 32 CHANNEL VOICE ECHO CANCELLER
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