DS2168

更新时间： 2024-01-08 04:33:26

品牌	Logo	应用领域
达拉斯 - DALLAS		解码器编解码器电信集成电路电信电路光电二极管 PC
页数	文件大小	规格书
15页	88K
描述
ADPCM Processor

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技术参数
数据手册

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DS2168 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	零件包装代码：	QFJ
包装说明：	PLASTIC, LCC-28	针数：	32
Reach Compliance Code：	not_compliant	HTS代码：	8542.39.00.01
风险等级：	5.42	Is Samacsys：	N
Base Number Matches：	1

DS2168 数据手册

DS2167/DS2168

ADPCM Processor

FEATURES

PIN ASSIGNMENT

• Speech compression chip compatible with standard

VDD

YIN

RST

TM0

TM1

ADPCM algorithms:

CLKY

FSY

–

DS2167 supports “new” T1Y1 recommenda-

tions (July 1986) and “new” CCITT G.721 rec-

ommendations

YOUT

DS2168 supports “old” CCITT G.721 recom-

mendations

SDI

SCLK

XOUT

FSX

• Dual independent channel architecture – device may

be programmed to perform full duplex, 2-channel ex-

pansions, or 2-channel compressions

SPS

MCLK

VSS

CLKX

XIN

• Interconnects directly with µ-law or A-law codec/filter

devices

24-Pin DIP (600 MIL)

• Serial PCM and control port interfaces minimize “glue

logic” in multiple channel applications

–

On-chip channel counters identify input and out-

put timeslots in TDM-based systems

27 26

1 28

3 2

FSY

YOUT

Unique addressing scheme simplifies device

control; 3-wire port shared among 64 devices

SDI

SCLK

XOUT

Bypass and idle features allow dynamic alloca-

tion of channel bandwidth, minimize system

power requirements

12 1314 15 16 1718

• Hardware mode intended for stand-alone use

–

No host processor required

28-Pin PLCC

Ideal for voice mail applications

• 28-pin surface-mount package available, designated

DS2167Q/DS2168Q

DESCRIPTION

The DS2167 and DS2168 are dedicated digital signal

processor (DSP) CMOS chips optimized for Adaptive

Differential Pulse Code Modulation (ADPCM) based

compression algorithms. The devices halve the trans-

missionbandwidth of “toll quality” voice from 64K to 32K

bits/second and are utilized in PCM-based telephony

networks.

022698 1/15

12 3 4 5 6 7...15

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