參數(shù)資料
型號(hào)： ZL50211
廠商： Zarlink Semiconductor Inc.
英文描述： 256 Channel Voice Echo Canceller
中文描述： 256頻道語音回聲消除器
文件頁數(shù)： 1/42頁
文件大?。?/td> 2114K
代理商： ZL50211
1
Features
ZL50211 has eight Echo Voice Processors in a
single BGA package. This single device provides
256 channels of 64 msec echo cancellation or 128
channels at 128 msec echo cancellation
Each Echo Voice Processor has the capability of
cancelling echo over 32 channels
Each Echo Voice Processor (EVP) shares the
address bus and data bus with each other
Fully compliant to ITU-T G.165, G.168 (2000) and
(2002) specifications
Passed all AT&T voice quality tests for carrier
grade echo canceller
The ZL50211 provides more than 58% board
space savings when compared with the eight Echo
Voice Processors packaged devices
Each EVP has a Patented Advanced Non-Linear
Processor with high quality subjective performance
Each EVP has protection against narrow band
signal divergence and instability in high echo
environments
Each EVP can be programmed independently in
any mode e.g. Back-to-Back or Extended Delay to
provide capability of cancelling different echo tails.
Each EVP has 0 to -12 dB level adjusters at all
signal ports (Rin, Sin, Sout and Rout)
Each EVP has the same JTAG identification code
Applications
Voice over IP network gateways
Voice over ATM, Frame Relay
T1/E1/J1 multichannel echo cancellation
Wireless base stations
Echo Canceller pools
DCME, satellite and multiplexer system
Description
The ZL50211 Voice Echo Canceller implements a cost
effective solution for telephony voice-band echo
cancellation conforming to ITU-T G.168 requirements.
The ZL50211 architecture contains 128 groups of two
echo cancellers (ECA and ECB) which can be
configured to provide two channels of 64 milliseconds
or one channel of 128 milliseconds echo cancellation.
This provides 256 channels of 64 milliseconds to 128
channels of 128 milliseconds echo cancellation or any
combination of the two configurations. The ZL50211
supports ITU-T G.165 and G.164 tone disable
requirements.
ZL50211GB
March 2003
Ordering Information
ZL50211GB 535 - Ball BGA
-40
°
C to +85
°
C
ZL50211
256 Channel Voice Echo Canceller
Data Sheet
Figure 1 - ZL50211 Device Overview
EVP1
Rin1...Rin8
Sin1....Sin8
CS
1..CS8
D0....D7
A0..A12
RESET1..RESET8
R
M
C
F
O
D
F
Rout1..Rout8
Sout1..Sout8
IRQ
1..
IRQ
8
DTA
1..
DTA
8
EVP4
EVP6
EVP7
EVP8
EVP5
EVP3
EVP2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50211/GBC 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 CANCELLER 535PBGA 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCELLER 535PBGA
ZL50211_06 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:256 Channel Voice Echo Canceller
ZL50211GB 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:256 Channel Voice Echo Canceller
ZL50211GBC 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:256 Channel Voice Echo Canceller
ZL50211GBG2 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 256CH G.164/G.168 W/ TONE DETECTION 535B - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC VOICE ECHO CANCELLER 535PBGA 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCELLER 535PBGA
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