DM562AP datasheet(1/48 Pages) DAVICOM

部件名	DM562AP

功能描述	V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in

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制造商	DAVICOM [Davicom Semiconductor, Inc.]

网页	http://www.davicom.com.tw

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DM562AP

V.90 Integrated Data/ Fax/Voice/Speakerphone

Modem Device Single Chip with Memory Built in

General Description

The DM562AP integrated modem is a two-chipset

design that provides a complete solution for

state-of-the-art, voice-band Plain Old Telephone

Switching (POTS) communication. The modem

provides for Data (up to 56,000bps), Fax (up to

33,600bps), fast connection, Voice and Full Duplex

Speaker-phone functions to comply with various

international standards.

The design of the DM562AP is optimized for

desktop personal computer applications, embedded

microprocessor applications, Set-Top-Box (STB),

Point-Of-Sale (POS), and Multi-Function Peripheral

(MFP) FAX application. It provides a low cost,

highly reliable, maximum integration, with the

minimum

amount

of

supports

required.

The

DM562AP modem can operate over a dial-up

network (PSTN) or 2 wire leased lines.

The modem integrates auto dial and answer

capabilities,

synchronous/asynchronous

data

transmissions, serial and parallel interfaces, various

tone detection schemes and data test modes.

The

DM562AP

modem

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 DM562AP

are:

•

DM6580 Analog Front End (AFE). 48-pin LQFP

package.

•

DM6588A ITU-T V.90 integrated Processors

with 32K bytes SRAM built in 128-pin QFP

package

Block Diagram

LED

TX

DSP

Ring

Detector

DM6580

Analog

Front End

SCLK

DIT

DOT

TFS

DIR

DOR

RFS

RXSCLK

CLKIN

TXDCLK

RXDCLK

DAA

RxIN

TxA1

TxA2

Line

Speaker

Driver

PCI

Bus

RX

DSP

V.24

Interface

UART

V.24

Interface

PnP

SPKR

Microphone

Driver

29.4912MHz

30.24MHz

Optional

DM6588A

TXSCLK*2

ISA

Bus

Controller

Micro

Unit

32KB

SRAM

2M

Flash

Final

1

Version: DM562AP-DS-F03

Nov. 09, 2007

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