參數(shù)資料
型號(hào)： ZL38065QCG
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 數(shù)字傳輸電路
英文描述： 32 Channel Voice Echo Canceller
中文描述： DATACOM, ISDN ECHO CANCELLER, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, MS-026BED, LQFP-100
文件頁(yè)數(shù)： 15/48頁(yè)
文件大?。?/td> 658K
代理商： ZL38065QCG
ZL38065
Data Sheet
15
Zarlink Semiconductor Inc.
2.0 Device Configuration
The ZL38065 architecture contains 32 echo cancellers divided into 16 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 7, 8 and 9.
2.1 Normal Configuration
In Normal configuration, the two echo cancellers (Echo Canceller A and B) are positioned in parallel, as shown in
Figure 7, providing 64 milliseconds of echo cancellation in two channels simultaneously.
Figure 7 - 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 8. 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 8 - 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
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
ZL38065QCG1 制造商:Microsemi Corporation 功能描述:PB FREE 32CH VEC+ENHANCED NOISE MATCHING 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 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCEL 100LQFP 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCEL 100LQFP
ZL38070 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:256 Channel Voice Echo Canceller
ZL38070_06 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:256 Channel Voice Echo Canceller
ZL38070GBG 制造商:Microsemi Corporation 功能描述:256 Ch VEC with enhanced noise matching 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 256CH G.164/G.165/G.168/G.711 W/ TONE DE - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCEL 535MCMBGA 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCEL 535MCMBGA
ZL38070GBG2 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 256CH G.164/G.165/G.168/G.711 W/ TONE DE - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCEL 535MCMBGA
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