Datasheet > 微控制器和处理器 > 数字信号处理器> TMS320WP010PZ

TMS320WP010PZ

更新时间： 2024-10-27 12:22:27

品牌	Logo	应用领域
德州仪器 - TI		微控制器和处理器外围集成电路数字信号处理器时钟
页数	文件大小	规格书
18页	277K
描述
DIGITAL SIGNAL PROCESSOR FOR AEC/LEC/ANS

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技术参数
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TMS320WP010PZ 技术参数

是否无铅：	含铅	生命周期：	Obsolete
零件包装代码：	QFP	包装说明：	PLASTIC, LQFP-100
针数：	100	Reach Compliance Code：	unknown
ECCN代码：	3A001.A.3	HTS代码：	8542.31.00.01
Factory Lead Time：	1 week	风险等级：	5.76
Is Samacsys：	N	地址总线宽度：	16
桶式移位器：	NO	边界扫描：	YES
最大时钟频率：	80 MHz	外部数据总线宽度：	16
格式：	FIXED POINT	内部总线架构：	MULTIPLE
JESD-30 代码：	S-PQFP-G100	长度：	14 mm
低功率模式：	YES	端子数量：	100
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE, FINE PITCH
认证状态：	Not Qualified	座面最大高度：	1.6 mm
最大供电电压：	5.25 V	最小供电电压：	4.75 V
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	宽度：	14 mm
uPs/uCs/外围集成电路类型：	DIGITAL SIGNAL PROCESSOR, OTHER	Base Number Matches：	1

TMS320WP010PZ 数据手册

TMS320WP010

DIGITAL SIGNAL PROCESSOR

FOR AEC/LEC/ANS

SPRS040–OCTOBER 1995

Cancels the Acoustic Echo Common in

Hands-Free Use of Cellular Phones in

Automobiles

– Eliminates Echo Created by Speaker

Output Feeding Back Into the

Microphone

Acoustic Echo Canceler Performance

– Length of Echo Path up to 44 ms

– Initial Adaptation Rate >20 dB/s for

Speech Signals

– Zero Speech Delay

– Echo Return Loss up to 30 dB for

Speech Echo in Automobiles and 41 dB

for Sine Wave Input

Suppresses Wind, Engine, and Tire Noise

Line Echo Canceler

Noise Suppressor Performance

– Up to 10 dB Noise Suppression for

Hands-Free Use of Cellular Phones in

Automobiles Without Distorting Speech

Signals

Standard Independent

– IS-54B, IS-136, GSM, AMPS, IS-95

Continuous, Automatic Adaptation to

Changing Acoustic Environment

– Initial System Training Not Required

– 16 ms Processing Delay

Based on TMS320C5x Platforms

– Continuous Adaptation

Support for Industry Standard

Microcontrollers

Demonstration Platform

– Allows Evaluation of Software Algorithm

Performance in Lab and Automobile

– Ability to Enable/Disable AEC, ANS, and

LEC

Interfaces Easily with TI’s Voice Codec, the

TCM320AC36

description

For the cellular phone cradle market, the TMS320WP010 provides enhanced quality, full-duplex, hands-free

communications. The ’WP010 is a ROM-coded DSP that provides all the adaptive filtering and processing

necessary for acoustic echo cancellation (AEC), line echo cancellation (LEC), and adaptive noise suppression

(ANS).

The ’WP010’s acoustic echo cancellation function is based on a Finite Impulse Response (FIR) filter with an

adaptive coefficient updating algorithm. The adaptive algorithm updates continuously so that it can constantly

track acoustic path changes from the speaker to the microphone. Based upon FIR filter coefficients, the echo

signal can be estimated and subtracted from the observed signal at the microphone. The acoustic echo

cancellation function provides continuous adaptation and needs no initial system training. It is capable of

canceling an echo path of up to 44 milliseconds and provides up to 30 dB cancellation for speech signals. In

addition, the initial convergence rate is faster than 20 dB per second.

The line echo cancellation function cancels the near-end speech that has been reflected at the network switch

and transmitted back to the cellular phone. The principle of the line echo cancellation function is very similar

to that of the acoustic echo cancellation function. The difference is that the line echo cancellation function is

designed to cancel the echo signal caused by network feedback due to impedance mismatch in the network

circuit. The line echo cancellation function is capable of canceling a line echo path of up to 16 milliseconds.

The received signal at the microphone consists of the near-end speech signal, acoustic feedback echo, and

ambient noise from the environment. The purpose of the adaptive noise suppression function is to suppress

ambient noise components without distorting near-end speech. The initial adaptation rate is about 3 dB per

second without initial system training. It tracks the changes of the noise characteristics and suppresses noise

accordingly. The adaptive noise suppression provides up to 10 dB of noise cancellation without degrading

near-end speech.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...18

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