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參數(shù)資料
| 型號(hào)： | DM336P |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set |
| 中文描述： | .34綜合數(shù)據(jù)/傳真/語音/揚(yáng)聲器調(diào)制解調(diào)器設(shè)備集 |
| 文件頁數(shù)： | 1/40頁 |
| 文件大小： | 341K |
| 代理商： | DM336P |
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DM336P
V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
Final
Version: DM336P-DS-F02
August 15, 2000
1
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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