Datasheet > ZL38070

ZL38070

更新时间： 2024-10-30 03:08:35

品牌	Logo	应用领域
加拿大卓联 - ZARLINK		/
页数	文件大小	规格书
51页	836K
描述
256 Channel Voice Echo Canceller

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ZL38070 数据手册

ZL38070

256 Channel Voice Echo Canceller

Data Sheet

January 2006

Features

Ordering Information

•

ZL38070 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

ZL38070GBG

535 Ball BGA Trays, Bake & Drypack

ZL38070GBG2 535 Ball BGA** Trays, Bake & Drypack

**Pb Free Tin/Silver/Copper

•

Each Echo Voice Processor has the capability of

-40°C to +85°C

cancelling echo over 32 channels

Each Echo Voice Processor (EVP) shares the

address bus and data bus with each other

•

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

Fully compliant to ITU-T G.165, G.168 (2000) and

(2002) specifications

•

Each EVP has +9 to -12 dB level adjusters at all

Passed all AT&T voice quality tests for carrier

grade echo canceller

signal ports (Rin, Sin, Sout and Rout)

Parallel controller interface compatible with

Motorola microcontrollers

Sub 50 ms initial convergence times under many

typical network conditions

•

Unparalleled in-system tunability

Applications

The ZL38070 provides more than 58% board

space savings when compared with eight

individually packaged Echo Voice Processor

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

•

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

ZL38070GB

Rin1...Rin8

Sin1....Sin8

Rout1..Rout8

EVP3

EVP1

EVP4

EVP2

D0....D7

Sout1..Sout8

CS1..CS8

A0..A12

EVP5

IRQ1..IRQ8

EVP6

EVP7

EVP8

RESET1..RESET8

DTA1..DTA8

Figure 1 - ZL38070 Device Overview

Zarlink Semiconductor Inc.

Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.

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