p9373 ETC-unknow, p9373 Datasheet - Page 3

• Manufacturer Part Number: p9373
• Description: Smartacfl Modem
• Manufacturer: ETC-unknow

V.90/K56flex Modem Device Sets with SmartDAA Technology for Low Power Applications
Introduction
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.
Doc. No. 100444A
PCCard/Parallel/
Serial DTE
Interface
Unit (MCU)
Processor
Microcontroller Unit (MCU)
Interface
Central
Internal
(continued)
RAM
Host
L2702: 128-Pin TQFP
Cellular and
Expansion
EEPROM
Interface
Interface
Interface
Memory
Interface
Serial
MDP
GSM
Bus
Figure 1. SmartACFL Modem Major Interfaces
SPEAKER
Interface
ROM/Flash ROM
* = GSM Support
Serial EEPROM
Modem Data Pump (MDP)
MCU
4M (512K X 8)*
2K (256 x 8) to
1M (128K x 8)
2M (256K x 8)
32K (4K x 8)
P9373: 100-Pin TQFP
(Optional)
RAM
Proprietary Information
Data Pump
SmartDAA
Interface
Modem
(MDP)
Conexant
supplied)
Isolation
Barrier
Digital
(DIB)
(OEM
20437: 32-Pin TQFP
Applications
•
•
•
•
•
•
Voice Codec (VC)
(Optional)
PC Cards
Embedded systems
Serial box modems
Set top boxes
Point of sales terminals
Remote monitoring and data collection systems
Components
Rectifier and
Filter
Interface
(LSDI)
Line
Side
DIB
Line Side Device (LSD)
20463: 32-Pin TQFP
DAA Hardware
Codec
Telephone
Interface
Line
Circuit (Optional)
Digital Speaker
SPEAKER
Diode Bridge,
(Mic/Speaker)
Protection &
Components
Components
Impedance
Electronic
HS Hybrid
(Optional)
(Optional)
Inductor,
Interface
EMI,
SmartACFL
Telephone
MIC
SPEAKER
Cellular
Interface
GSM
Interface
SOUNDUCER
TIP
RING
Line
MD251F2_FID
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