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參數(shù)資料
| 型號： | ZL50234GD |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | 8 Channel Voice Echo Canceller |
| 中文描述： | 8頻道語音回聲消除器 |
| 文件頁數(shù)： | 1/41頁 |
| 文件大?。?/td> | 620K |
| 代理商： | ZL50234GD |
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1
Features
Independent multiple channels of echo
cancellation; from 8 channels of 64ms to 4
channels of 128ms with the ability to mix
channels at 128ms or 64ms in any combination
Independent Power Down mode for each group of
2 channels for power management
Fully compliant to ITU-T G.165, G.168 (2000) and
(2002) specifications
Passed AT&T voice quality testing for carrier
grade echo cancellers.
Compatible to ST-BUS and GCI interfaces with
2Mb/s serial PCM data
PCM coding,
μ
/A-Law ITU-T G.711 or sign
magnitude
Per channel Fax/Modem G.164 2100Hz or G.165
2100Hz phase reversal Tone Disable
Per channel echo canceller parameters control
Transparent data transfer and mute
Fast reconvergence on echo path changes
Fully programmable convergence speeds
Patented Advanced Non-Linear Processor with
high quality subjective performance
Protection against narrow band signal divergence
and instability in high echo environments
0 dB to -12 dB level adjusters (3 dB steps) at all
signal ports
Offset nulling of all PCM channels
10 MHz or 20 MHz master clock operation
3.3 V I/O pads and 1.8V Logic core operation with
5-Volt tolerant inputs
IEEE-1149.1 (JTAG) Test Access Port
ZL50232, ZL50233, ZL50234 and ZL50235 have
same pinouts in both LQFP and LBGA packages
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
March 2003
Ordering Information
ZL50234/QCC 100-Pin LQFP
ZL50234/GDC 208-Ball LBGA
-40
°
C to +85
°
C
ZL50234
8 Channel Voice Echo Canceller
Data Sheet
Figure 1 - ZL50234 Device Overview
RESET
Rout
Sout
DS CS R/W A10-A0 DTA
D7-D0
V
SS
V
DD1 (3.3V)
TDI TDO TCK TRST
TMS
Rin
IRQ
C4i
F0i
MFsel
ODE
Sin
Test Port
Microprocessor Interface
Timing
Unit
Serial
to
Parallel
Parallel
Sto
PLL
Note:
Refer to Figure 4
for Echo Canceller
block diagram
V
DD2 (1.8V)
Echo Canceller Pool
Group 0
ECA/ECB
Group 1
ECA/ECB
Group 2
ECA/ECB
Group 3
ECA/ECB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL50234QC | LED 3MM RT ANG LOW CUR YEL PCMNT |
| ZL50234QCC | 8 Channel Voice Echo Canceller |
| ZL50234GDC | 8 Channel Voice Echo Canceller |
| ZL50400 | Lightly Managed/Unmanaged 9-Port 10/100 M Ethernet Switch |
| ZL50400GDC | Lightly Managed/Unmanaged 9-Port 10/100 M Ethernet Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL50234GDC | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:8 Channel Voice Echo Canceller |
| ZL50234QC | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:8 Channel Voice Echo Canceller |
| ZL50234QCC | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:8 Channel Voice Echo Canceller |
| ZL50234QCG1 | 制造商:Microsemi Corporation 功能描述:ECHO Canceller Chip 8-CH G.165/G.168/G.711 With Tone Detection 100-Pin LQFP Tray 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 8CH 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 8CH 100LQFP 制造商:Microsemi Corporation 功能描述:IC VOICE ECHO CANCEL 8CH 100LQFP |
| ZL50235 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:16 Channel Voice Echo Canceller |
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