Datasheet > D6305B-11

D6305B-11

更新时间： 2024-09-11 23:46:07

品牌	Logo	应用领域
其他 - ETC		电信
页数	文件大小	规格书
2页	29K
描述
Telecommunication IC

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中文翻译

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数据手册

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D6305B-11 数据手册

D6305B

EASYTADä Chip for an All- Digital

Telephone Answering Machine

The D6305B chip is a digital speech/signal processing

subsystem that implements all of the functions of speech

compression, telephone line signal processing, memory

management, and TRUESPEECHâ natural sounding

voice prompting for an all digital answering machine.

The D6305B 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 tone

generation, DTMF and call progress tone detection, and

voice prompting.

VOICE

PROMPT

ROM

Analog I/O

16M

ARAM

D6305B

HOST

controller

ARAM

The fully digital solution has no moving parts, yielding

high reliability. The chip’s programmability enables a

full range of answering device features for the end user.

The D6305B is a single-chip, digital signal processor

that includes all of the necessary circuitry to interface

with an external HOST, memory, and an analog front

end.

Figure 1. D6305B Block Diagram

FEATURES

High-quality, variable low rate TRUESPEECHâ

digital speech compression allowing 14-15 minutes

of recording time per each 4 MB ARAM (Audio

grade DRAM)

Uses more relaxed ARAM specifications (standard

ARAM)

Will work with 1M x 4 (4MB) or 4M x 4 (16 MB)

ARAMs

Flexible storage of incoming messages (ICM) and

outgoing messages (OGM). Supports multiple

OGMs and multiple mailboxes

Supports “offset playback” for jumps within a

message

Programmable Tone Generation and Tone

Generation from tables

TRUESPEECHâ natural-sound voice prompting,

for Day/Time stamp and voice instructions

8-bit parallel HOST interface

DTMF generation and detection with near-end echo

cancellation for superior performance

Storage of 32 telephone numbers for speed dialing

Low power consumption

Fully backwards compatible with D6305A. Host

software compatible, pin-to-pin replaceable

Special commands for production line testing

6050302.2

DSP GROUP, INC., 3120 SCOTT BLVD.,

SANTA CLARA, CA 95054 PH: 408-986-4300 FAX: 408-986-4323

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