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NSAM266SP

更新时间： 2024-02-02 11:23:53

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其他 - ETC		/
页数	文件大小	规格书
58页	609K
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NSAM266SP 技术参数

生命周期：	Obsolete	包装说明：	QCCJ,
Reach Compliance Code：	unknown	风险等级：	5.84
Is Samacsys：	N	地址总线宽度：	16
桶式移位器：	NO	边界扫描：	NO
最大时钟频率：	20.48 MHz	外部数据总线宽度：	8
格式：	FIXED POINT	内部总线架构：	SINGLE
JESD-30 代码：	S-PQCC-J68	长度：	24.13 mm
低功率模式：	YES	端子数量：	68
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCJ
封装形状：	SQUARE	封装形式：	CHIP CARRIER
认证状态：	Not Qualified	座面最大高度：	4.57 mm
最大供电电压：	5.5 V	最小供电电压：	4.5 V
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子形式：	J BEND	端子节距：	1.27 mm
端子位置：	QUAD	宽度：	24.13 mm
uPs/uCs/外围集成电路类型：	DIGITAL SIGNAL PROCESSOR, MIXED	Base Number Matches：	1

NSAM266SP 数据手册

PRELIMINARY

October 1996

NSAM266SP CompactSPEECH^TMDigital Speech

Processor with Full-Duplex Speakerphone

General Description

The NSAM266SP is a member of National Semiconductor’s

CompactSPEECH Digital Speech Processor family. This

processor provides Digital Answering Machine (DAM) func-

tionality to embedded systems.

The CompactSPEECH firmware implements voice compres-

sion and decompression, tone detection and generation,

message storage management, speech synthesis for time-

and-day stamp, and supports user-defined voice prompts in

various languages.

The CompactSPEECH interfaces with National Semicon-

ductor’s NM29A040 and NM29A080 Serial Flash memory

devices to provide a cost-effective solution for DAM and

Cordless DAM (CDAM) applications.

The CompactSPEECH implements

a digital full-duplex

speakerphone, which utilizes acoustic echo-cancellation

techniques to enable simultaneous talking and listening dur-

ing hands free conversation. Minimum microcontroller inter-

vention (launch-and-forget) is required during speakerphone

sessions. The speakerphone monitors its performance in

real-time, and continually updates its internal state and fil-

ters to enable high-quality hands-free conversation.

The CompactSPEECH processor integrates the functions of

a traditional Digital Signal Processing (DSP) chip and the

CR16A, a 16-bit general-purpose RISC core implementation

of the CompactRISC^TMarchitecture. It contains system sup-

port functions such as Interrupt Control Unit, Codec inter-

face, MICROWIRE^TMinterfaces to a microcontroller and

Serial Flash, WATCHDOG^TMtimer, and a Clock Generator.

The CompactSPEECH implements echo-cancellation tech-

niques to support high-quality DTMF tone detection during

message playback.

The CompactSPEECH processor operates as a slave pe-

ripheral that is controlled by an external microcontroller via

a serial MICROWIRE interface. In a typical DAM environ-

ment, the microcontroller controls the analog circuits, but-

tons and display, and activates the CompactSPEECH by

sending it commands. The CompactSPEECH processor ex-

ecutes the commands and returns status information to the

microcontroller.

The CompactSPEECH can synthesize messages in various

languages via the International Vocabulary Support (IVS)

mechanism. The NSAM266SP can store vocabularies on

either Serial Flash, or Expansion ROM memories. DAM

manufacturers can thus create machines that ‘‘speak’’ in

different languages, simply by using other vocabularies. For

more details about IVS, refer to the IVS User’s Manual.

Block Diagram

NSAM266SP Basic Configuration

TL/EE/12868–1

TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.

CompactSPEECH^TM, CompactRISC^TM, COPS^TMMicrocontrollers, HPC^TM, MICROWIRE^TM, MICROWIRE/PLUS^TMand WATCHDOG^TMare trademarks of National Semiconductor Corporation.

1996 National Semiconductor Corporation

TL/EE12868

RRD-B30M116/Printed in U. S. A.

http://www.national.com

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与NSAM266SP相关器件

型号	品牌	获取价格	描述	数据表
NSAM266SPA/V	ETC	获取价格	Solid-State Recorder
NSAM266SPA/VLJ	ETC	获取价格	Solid-State Recorder
NSAM266SPQC	ETC	获取价格	Solid-State Recorder
NSAM266SPV	TI	获取价格	8-BIT, 20.48MHz, MIXED DSP, PQCC68, PLASTIC, LCC-68
NSAM266SPVEJ	TI	获取价格	8-BIT, 20.48MHz, MIXED DSP, PQFP100, 14 X 20 MM, PLASTIC, QFP-100
NSAM266SPVEJX	TI	获取价格	8-BIT, 20.48MHz, MIXED DSP, PQFP100, 14 X 20 MM, PLASTIC, QFP-100
NSAM266SPVLJ	ETC	获取价格	Solid-State Recorder
NSAM266SPVX	TI	获取价格	8-BIT, 20.48MHz, MIXED DSP, PQCC68, PLASTIC, LCC-68
NSAM266SVLJ	NSC	获取价格	NSAM266SA CompactSPEECHTM Digital Speech Processor with Serial Flash Interface
NSAM2AS1012VDC	DBLECTRO	获取价格	Switching capacity up to 20A

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