DM6381F datasheet(1/40 Pages) ETC

部品番号	DM6381F

部品情報	V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set

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DM336P

V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set

Final

1

Version: DM336P-DS-F02

August 15, 2000

General Description

The DM336P integrated modem is a four chipset

design that provides a complete solution for state-of-

the-art, voice-band Plain Old Telephone Service

(POTS) communication. The modem provides for

Data (up to 33,600bps), Fax (up to 14,400bps), Voice

and Full Duplex Speaker-phone functions to comply

with various international standards.

The design of the DM336P is optimized for desktop

personal computer applications and it provides a low

cost, highly reliable, maximum integration, with the

minimum amount of support required. The DM336P

modem can operate over a dial-up network (PSTN) or

2 wire leased lines.

The modem integrates auto dial and answer

capabilities, synchronous and asynchronous data

transmissions, serial and parallel interfaces, various

tone detection schemes and data test modes.

The DM336P modem’s reference design is pre-

approved for FCC part 68 and provides minimum

design cycle time, with minimum cost to insure the

maximum amount of success.

The simplified modem system, shown in figure below,

illustrates the basic interconnection between the

MCU, DSP, AFE and other basic components of a

modem. The individual elements of the DM336P are:

• DM6380 Analog Front End (AFE). 28-pin PLCC

package

• DM6381 ITU-T V.34 Transmit Digital Signal

Processor (TX DSP). 100-pin QFP package

• DM6382 ITU-T V.34 Receive Digital Signal

Processor (RX DSP). 100-pin QFP package

• DM6383 Modem Controller (MCU) built in Plug &

Play (PnP). 100-pin QFP package

Block Diagram

LED

Micro

Controller

Unit

TX DSP

Ring

Detector

Analog

Font End

TxD

RxD

MSCLK

Address &

Data Bus

SCLK

DIT

DOT

TFS

DIR

DOR

RFS

TxBCLK

TxSCLK*2

RxBCLK

RxSCLK

20.16MHz

TxDCLK

RxDCLK

40.32MHz

DAA

RxIN

TxA1

TxA2

Line

Speaker

Driver

ISA Bus

RX DSP

V.24

Interface

V.24

Interface

PnP

SPKR

Microphone

Driver

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