Datasheet > D6385A-11

D6385A-11

更新时间： 2024-11-15 23:46:07

品牌	Logo	应用领域
其他 - ETC		电信
页数	文件大小	规格书
4页	386K
描述
Telecommunication IC

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D6385A-11 数据手册

D6385A

All Digital Telephone Answering Device with True FULL Duplex

SpeakerPhone includes Slave CODEC Operation for Digital

Telephone Applications

General Description

The D6385A chip is a digital speech/signal processing subsystem that implements all functions of TRUESPEECH

speech compression and voice prompts, telephone line signal processing, memory management, FLEXISPEECH and

True FULL Duplex SpeakerPhone for an all digital answering machine. In addition, the D6385A has the ability to

operate as a CODEC, in slave mode, for use in Digital Telephone applications such as DECT. The D6385A is fully

controlled by the system Host through a simple interface protocol. The Host controller provides activation and control

of all system functions such as speech recording and playback, DTMF and call progress tone detection, DTMF and tone

generation, and voice prompting.

Host

Controller

Telephone

Phone

Line

Interface

CODEC

Voice

Prompt

ROM

D6385A

DSP Speech

Processor

Speaker

Phone

Interface

CODEC

ARAM

Memory

Optional

Figure 1. D6385A System Block Diagram

Key Features

n High-quality, variable low rate TRUESPEECH digital n FLEXISPEECH variable speed, natural sound

speech compression allowing 14-15 minutes of

recording time per each 4 Mbit ARAM (Audio

Grade DRAM)

playback (50%-200%)

n Selectable Master/Slave CODEC operation

n Supports offset playback for jumps within a

message

n TRUESPEECH, natural-sound voice prompting, for

Day/Time stamp and voice instructions

n True FULL Duplex SpeakerPhone with both

acoustical and near-end echo cancellation

n Flexible storage of incoming messages (ICM),

outgoing messages (OGM). Supports multiple

OGMs and multiple mailboxes

n Programmable thresholds for VOX, DTMF, and call

progress

n DTMF generation and detection with near-end

echo cancellation for superior performance

n Digital Volume Control

n Two programmable call progress tone filters

n Simple 8-bit Host Hardware Interface

n Storage of 32 telephone numbers for speed dialing

n Easy Host software conversion from the D6305B

12 3 4

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