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參數(shù)資料
| 型號： | 20463 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SmartACFL Modem |
| 中文描述： | SmartACFL調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 210K |
| 代理商： | 20463 |
V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications
SmartACFL
Doc. No. 100444A
Conexant
3
Proprietary Information
Introduction
(continued)
The optional Voice Codec (VC) supports voice/full-
duplex speakerphone (FDSP) operation with
interfaces to a microphone and speaker and to a
telephone handset/headset. The optional RCDSVD
Speech Codec Processor (SCP) supports DSVD.
The modem operates by executing firmware from
external 1 Mbit (128k X 8) RAM and 2 Mbit (256k X
8) ROM/Flash ROM. The 33S and 14S models can
alternatively use external 1 Mbit or 2 Mbit
ROM/Flash ROM and the MCU’s internal 32K X 8
RAM. For GSM support the ROM size is doubled.
Accelerator kits and reference designs are available
in electronic form to minimize application design time
and costs. The design package includes schematics,
bill of materials (BOM), board layout files in Gerber
format, and complete documentation. The design is
pretested to pass FCC Part 15, Part 68, and CTR 21
for immediate manufacturing.
Applications
PC Cards
Embedded systems
Serial box modems
Set top boxes
Point of sales terminals
Remote monitoring and data collection systems
Modem Data Pump (MDP)
P9373: 100-Pin TQFP
Voice Codec (VC)
20437: 32-Pin TQFP
(Optional)
(MInterface
(Optional)
TIP
Electronic
Inductor,
Diode Bridge,
Protection &
EMI,
Impedance
Components
SmartDAA
Interface
Modem
Data Pump
(MDP)
Telephone
Line
Digital Speaker
PCCard/Parallel/
Serial DTE
Interface
MIC
MD251F2_FID
SOUNDUCER
Digital
Isolation
Barrier
(DIB)
(OEM
supplied)
Line Side Device (LSD)
20463: 32-Pin TQFP
Line
Side
DIB
Interface
(LSDI)
Codec
Telephone
Line
Interface
DAA Hardware
(Optional)
Cellular
GSM
1M (RAM
Central
Processor
Unit (MCU)
SPEA232K (4K x 8)
Serial EEPROM
(Optional)
2M (256K x 8)
*4M (512K X 8)*
MCU
Interface
MDP
Interface
Internal
RAM
Serial
EEPROM
Interface
Expansion
Memory
Bus
Interface
Cellular and
GSM
Interface
Host
Interface
Microcontroller Unit (MCU)
L2702: 128-Pin TQFP
Rectifier and
Filter
Components
Figure 1. SmartACFL Modem Major Interfaces
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| 204HD | 3.0 mm ROUND TYPE LED LAMPS |
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