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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： | 20/41页 |
| 文件大小： | 809K |
| 代理商： | ZL50232GD |
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ZL50232
Data Sheet
27
Zarlink Semiconductor Inc.
Note: In order to correctly write to Control Register 1 and 2 of ECB, it is necessary to write the data twice to the register, one
immediately after another. The two writes must be separated by at least 350ns and no more than 20 us.
Power-up
00hex
ECA: Control Register 2
R/W Address:
01hex + Base Address
ECB: Control Register 2
R/W Address:
21hex + Base Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TDis
PHDis
NLPDis
AutoTD
NBDis
HPFDis
MuteS
MuteR
Functional Description of Register Bits
TDis
When high, tone detection is disabled. When low, tone detection is enabled. When both
Echo Cancellers A and B TDis bits are high, Tone Disable processors are disabled
entirely and are put into Power Down mode.
PHDis
When high, the tone detectors will trigger upon the presence of a 2100 Hz tone regardless
of the presence/absence of periodic phase reversals. When low, the tone detectors will
trigger only upon the presence of a 2100 Hz tone with periodic phase reversals.
NLPDis
When high, the non-linear processor is disabled. When low, the non-linear processors
function normally. Useful for G.165 conformance testing.
AutoTD
When high, the echo canceller puts itself in Bypass mode when the tone detectors detect
the presence of 2100 Hz tone. See PHDis for qualification of 2100 Hz tones.
When low, the echo canceller algorithm will remain operational regardless of the state of
the 2100 Hz tone detectors.
NBDis
When high, the narrow-band detector is disabled. When low, the narrow-band detector is
enabled.
HPFDis
When high, the offset nulling high pass filters are bypassed in the Rin and Sin paths.
When low, the offset nulling filters are active and will remove DC offsets on PCM input
signals.
MuteS
When high, data on Sout is muted to quiet code. When low, Sout carries active code.
MuteR
When high, data on Rout is muted to quiet code. When low, Rout carries active code.
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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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