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参数资料
| 型号： | ZL50232GD |
| 厂商： | ZARLINK SEMICONDUCTOR INC |
| 元件分类： | 数字传输电路 |
| 英文描述： | DATACOM, ISDN ECHO CANCELLER, PBGA208 |
| 封装： | 17 X 17 MM, 1.30 MM HEIGHT, LBGA-208 |
| 文件页数： | 19/41页 |
| 文件大小： | 809K |
| 代理商： | ZL50232GD |
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ZL50232
Data Sheet
26
Zarlink Semiconductor Inc.
8.0
Register Description
Echo Canceller A (ECA): Control Register 1
Power-up 00hex
R/W Address: 00hex + Base Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset
INJDis
BBM
PAD
Bypass
AdpDis
0
ExtDI
Functional Description of Register Bits
Reset
When high, the power-up initialization is executed. This presets all register bits including
this bit and clears the Adaptive Filter coefficients.
INJDis
When high, the noise injection process is disabled. When low noise injection is enabled.
BBM
When high, the Back to Back configuration is enabled. When low, the Normal
configuration is enabled. Note: Do not enable Extended-Delay and BBM configurations at
the same time. Always set both BBM bits of the two echo cancellers (Control Register 1)
of the same group to the same logic value to avoid conflict.
PAD
When high, 12 dB of attenuation is inserted into the Rin to Rout path. When low, the
Gains register controls the signal levels.
Bypass
When high, Sin data is by-passed to Sout and Rin data is by-passed to Rout. The
Adaptive Filter coefficients are set to zero and the filter adaptation is stopped. When low,
output data on both Sout and Rout is a function of the echo canceller algorithm.
AdpDis
When high, echo canceller adaptation is disabled. The Voice Processor cancels echo.
When low, the echo canceller dynamically adapts to the echo path characteristics.
0
Bits marked as “1” or “0” are reserved bits and should be written as indicated.
ExtDl
When high, Echo Cancellers A and B of the same group are internally cascaded into one
128 ms echo canceller. When low, Echo Cancellers A and B of the same group operate
independently.
Echo Canceller B (ECB): Control Register 1
Power-up 02hex
R/W Address: 20hex + Base Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset
INJDis
BBM
PAD
Bypass
AdpDis
1
0
Functional Description of Register Bits
Reset
When high, the power-up initialization is executed which presets all register bits including
this bit and clears the Adaptive Filter coefficients.
INJDis
When high, the noise injection process is disabled. When low, noise injection is enabled.
BBM
When high, the Back to Back configuration is enabled. When low, the Normal
configuration is enabled. Note: Do not enable Extended-Delay and BBM configurations at
the same time. Always set both BBM bits of the two echo cancellers (Control Register 1)
of the same group to the same logic value to avoid conflict.
PAD
When high, 12 dB of attenuation is inserted into the Rin to Rout path. When low, the
Gains register controls the signal levels.
Bypass
When high, Sin data is by-passed to Sout and Rin data is by-passed to Rout. The
Adaptive Filter coefficients are set to zero and the filter adaptation is stopped. When low,
output data on both Sout and Rout is a function of the echo canceller algorithm.
AdpDis
When high, echo canceller adaptation is disabled. The Voice Processor cancels echo.
When low, the echo canceller dynamically adapts to the echo path characteristics.
1
Bits marked as “1” or “0” are reserved bits and should be written as indicated.
0
Control Register 1 (Echo Canceller B) Bit 0 is a reserved bit and should be written “0”.
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PDF描述 |
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| ZL50233/GDG | DATACOM, ISDN ECHO CANCELLER, PBGA208 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZL50232GDC | 制造商:ZARLINK 制造商全称: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 制造商全称:Zarlink Semiconductor Inc 功能描述:32 Channel Voice Echo Canceller |
| ZL50232QCC1 | 制造商:ZARLINK 制造商全称: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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