CONEXANT CX90240 V.22bis modem with 4th generation smartdaa Datasheet

Embedded Dial-Up Modems
V.22bis Applications
V.22bis Modem with 4th Generation
SmartDAA
CX90240
Conexant’s portfolio includes a comprehensive suite of semiconductor
solutions for broadband communications and the digital home.
2400 bps Modem with SmartDAA® 4 for Embedded
Applications
Conexant’s broadband communications portfolio includes a comprehensive
suite of semiconductor solutions that enable the digital home and information
network. Conexant modem solutions deliver a high level of integration and
robust performance. The CX90240 modem device is a simplified design in a
small form-factor which allows for quick time-to-market. The CX90240 modem
supports worldwide DAA and data modes up to 2400bps.
Conexant’s proprietary SmartDAA® 4 line side device builds on three
generations of market leading silicon DAA devices. It reduces Bill of
Material (BOM) cost and necessary board space, making it the most cost
efficient silicon DAA in the market. It eliminates the need for costly analog
transformers, relays and opto-isolators typically used in discrete DAA
implementation for country-specific modem configurations. The result is a
worldwide reduced system cost solution using a single BOM. The SmartDAA4
is system-powered, making it the most reliable and best performing silicon
DAA in the market.
This low cost solution integrates microcontroller (MCU), serial host interface,
ROM, RAM and SmartDAA System Side Device (SSD) functions onto a single
die. The easy-to-use design is pin-to-pin compatible with Conexant’s CX93011
product in a 20-pin Quad Flat-No Lead (QFN) package.
Applications
Conexant’s CX90240 modem is ideal for embedded applications such as:
•
•
•
•
POS Terminals
Set-top Boxes
Email Terminals
ATM Machines
Advantages
•
•
•
•
•
•
Pin-compatible to CX93011 Serial Modem
SmartDAA 4 technology
Distinguishing Features
• Modulations
• ITU-T V.22bis (2400 bps)
-V.22 and Bell 212A (1200 bps)
-V.22 fast connect
-V.21 and Bell 103 (300 bps)
-V.23 1200/75 and 75/1200
-V.23 Half Duplex (1200 bps)
• V.42 and MNP2-4 Error Correction
• Serial Interface
• Synchronous/Asynchronous Data Mode Hardware and software flow control
• Supports AT Command Set
• Other Protocols
- V.80 Synchronous Access Mode
- V.23 Reverse Mode
• Type I and Type II Caller ID Decoding
• Worldwide DC Mask Compliance
• Enhanced DAA features
- Digital Line Protection
- Line-in-Use Detection
- Extension Pickup Detection
- Remote Hang-up Detection
• Single +3.3V supply
• 20-pin QFN
Worldwide support
Quick time-to-market
Part Number CX90240
Low-cost solution
Description
Small form-factor
V.22bis Modem with 4th
Generation SmartDAA
Embedded Dial-Up Modems
V.22bis Applications
CX90240 Modem
28-Pin QFN
Serial
Interface
DTE/Host
Inerface
MCU/DSP
SmartDAA
Interface
RAM
28.224 MHz
or
27.000 MHz
Crystal or Clock
Source
Digital
Isolation
Barrier (DIB)
DAA Hardware
CX20548
SmartDAA 4
Line Side Device (LSD)
16-Pin QFN
Line Side
DIB
Interface
(LSDI)
Telephone
Line
Codec
Telephone
Line
Interface
External
Discrete
Components
Tip
Ring
ROM
Optional
NVRAM
CX90240 V.222bis Modem Simplified Interface
Ordering Information
Marketing Name Modem SmartDAA® Ordering Number
V.22bis Modem
CX90240 CX20548-11Z
DS22-CSM-11Z
Evaluation Board RD02-D390-5xx
Data Sheet and Design Guide Doc# 201394
AT Command Manual Doc# 102000
Conexant Product Portfolio
The company’s broad portfolio of semiconductor products also includes client-side DSL, cable, and dial-up modem solutions; fiber optic system-onchips; broadcast video encoders and decoders; and digital set-top box components and systems solutions. Additional products include a complete line
of asymmetric and symmetric DSL central office solutions, which are used by service providers worldwide to deliver broadband data, voice, and video
over copper telephone lines.
© 2007 Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant
logo are registered trademarks of Conexant Systems, Inc. All other trademarks
are owned by their respective owners. Although Conexant strives for accuracy
in all its publications, this material may contain errors or omissions and is
subject to change without notice.
This material is provided AS IS and without
any express or implied warranties, including merchantability, fitness for a
particular purpose and non-infringement.
Conexant shall not be liable for any
special, indirect, incidental or consequential damages as a result of its use.
07-2715
www.conexant.com
General Information:
U.S. and Canada: (888) 855-4562
International: 1+ (949) 483-3000
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
Doc# PBR-201395
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