參數(shù)資料
型號(hào)： ZL50233/GDG
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, MO-192, LBGA-208
文件頁(yè)數(shù)： 4/38頁(yè)
文件大?。?/td> 547K
代理商： ZL50233/GDG
ZL50233
Data Sheet
12
Zarlink Semiconductor Inc.
2.0
Device Configuration
The ZL50233 architecture contains 4 echo cancellers divided into 2 groups. Each group has two echo cancellers
which can be individually controlled (Echo Canceller A (ECA) and Echo Canceller B (ECB)). They can be set in
three distinct configurations: Normal, Back-to-Back, and Extended Delay. See Figures 6, 7, and 8.
2.1
Normal Configuration
In Normal configuration, the two echo cancellers (Echo Canceller A and B) are positioned in parallel, as shown in
Figure 6, providing 64 milliseconds of echo cancellation in two channels simultaneously.
Figure 6 - Normal Device Configuration (64 ms)
2.2
Back-to-Back Configuration
In Back-to-Back configuration, the two echo cancellers from the same group are positioned to cancel echo coming
from both directions in a single channel providing full-duplex 64 ms echo cancellation. See Figure 7. This
configuration uses only one timeslot on PORT1 and PORT2 and the second timeslot normally associated with ECB
contains zero code. Back-to-Back configuration allows a no-glue interface for applications where bidirectional echo
cancellation is required.
Figure 7 - Back-to-Back Device Configuration (64 ms)
Rin
Rout
Sout
Sin
echo
path A
echo
path B
+
-
channel A
channel A
+
-
channel B
channel B
ECA
ECB
Adaptive
Filter (64 ms)
Adaptive
Filter (64 ms)
PORT1
PORT2
+
ECA
Sin
Sout
Rout
Rin
-
ECB
+
-
echo
path
Adaptive
Filter (64 ms)
Adaptive
Filter (64 ms)
PORT1
PORT2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50233QC 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:4 Channel Voice Echo Cancellor
ZL50233QCC 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:4 Channel Voice Echo Cancellor
ZL50233QCG1 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 4-CH 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 CANCEL 4CH 100LQFP 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCEL 4CH 100LQFP
ZL50234 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:8 Channel Voice Echo Canceller
ZL50234/GDC 制造商:Microsemi Corporation 功能描述:ECHO Canceller Chip 8-CH G.164/G.165/G.168/G.711 With Tone Detection 208-Pin LBGA Tray 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 8CH G.164/G.165/G.168/G.711 W/ TONE DETE - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCEL 8CH 208LBGA 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCEL 8CH 208LBGA
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