參數(shù)資料
型號(hào)： ZL50212
廠商： Zarlink Semiconductor Inc.
英文描述： 288 Channel Voice Echo Canceller
中文描述： 288頻道語(yǔ)音回聲消除器
文件頁(yè)數(shù)： 15/43頁(yè)
文件大?。?/td> 2166K
代理商： ZL50212
Data Sheet
ZL50212
15
Zarlink Semiconductor Inc.
Back-to-Back configuration is selected by writing a “1” into the BBM bit of Control Register 1 for both Echo Canceller
A and Echo Canceller B for a given group of echo canceller. Table 4 shows the 16 groups of 2 cancellers that can
be configured into Back-to-Back.
Examples of Back-to-Back configuration include positioning one group of echo cancellers between a codec and a
transmission device or between two codecs for echo control on analog trunks.
3.3
Extended Delay configuration
In this configuration, the two echo cancellers from the same group are internally cascaded into one 128 milliseconds
echo canceller. See Figure 8. This configuration uses only one timeslot on PORT1 and PORT2 and the second
timeslot normally associated with ECB contains quiet code.
Figure 8 - Extended Delay Configuration (128ms)
Extended Delay configuration is selected by writing a “1” into the ExtDl bit in Echo Canceller A, Control Register 1.
For a given group, only Echo Canceller A, Control Register 1, has the ExtDl bit. For Echo Canceller B Control
Register 1, Bit 0 must always be set to zero.
Table 4 shows the 16 groups of 2 cancellers that can each be configured into 64ms or 128ms echo tail capacity.
+
-
channel A
channel A
ECA
Sin
Sout
Rout
Rin
echo
path A
Adaptive Filter
(128 ms)
PORT1
PORT2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50212/GBC 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 288CH G.164/G.165/G.168/G.711 W/ TONE DE - Trays
ZL50212GB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm
ZL50232 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:32 Channel Voice Echo Canceller
ZL50232/GDC 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 32CH G.164/G.165/G.168/G.711 W/ TONE DET - Trays
ZL50232/QCC 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 32CH G.164/G.165/G.168/G.711 W/ TONE DET - Trays
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