Embedded Dial-Up Modems
Controller-Based Modems
DAA Hardware
28.224 MHz
or
27.000 MHz
Crystal or Clock
Source
CX93011 Modem
20-Pin QFN
CX20548
SmartDAA 4
Line Side Device (LSD)
16-Pin QFN
Serial
Interface
DTE/Host
Interface
Telephone
Line
TIP
RING
Line Side
Telephone
DIB
External
Discrete
Components
Digital Isolation
Barrier (DIB)
Codec
Line
Interface
(LSDI)
Interface
RAM
MCU/DSP/
SmartDAA
Interface
Optional
NVRAM
ROM
CX93011 CSMxx Modem Simplified Interface
• Worldwide operation
CX93011 Features
- Complies to TBR21 and other country requirements
- Type I and Type II Caller ID (CID) decoding
- Type II Caller ID snooping
• Modulations and protocols
- ITU-T V.92: Quick Connect, Modem-on-Hold and
PCM upstream
- Call progress, blacklisting
- V.90/V.34/V.32bis/V.32
- Meets worldwide DC mask requirements
• Low power and voltage
- V.22bis/V.22/V.23/V.21
- V.23 reverse, V.23 half-duplex
- Single +3.3 V supply
- Bell 212A/Bell 103
- Low power consumption mode
- +3.3 V I/O level
• Compact, robust board design
- V.29 FastPOS and V22 Fast Connect
- SIA Protocol and Contact ID for alarm equipment
- V.80 Synchronous Access Mode
- Reference design files provided for quick time-to-market
- Reference design tested for PTT and TBR.21 approvals
- Small, low-profile modem packages
- Reference design supports 6KV isolation
- V.17/V.29 Fax Class 1/1.0 and Fax Class 2
• V.44/V.42bis/MNP5 data compression
• V.42/MNP2-4 Error correction
• Call waiting (CW) detection for selected countries
• Asynchronous Serial DTE interface
• Hardware and software flow control and speed buffering
• Embedded and upgradable 63 country profiles
• Optional serial NVRAM interface for country profile
storage and code upgrades
SmartDAA ꢆeatures
• Extension pick-up detection
• Digital line protection
• Line reversal detection
• Remote hang-up detection
• Worldwide compliance
• Full-duplex 8-bit/16-bit PCM voice pass-through mode
• 28.224 MHz or 27.000 MHz frequency XTAL or clock input
• CX20548 SmartDAA 4 LSD in a 16-pin QFN
• Worldwide support with a single design
Conexant Product Portfolio
Conexant’s comprehensive product portfolio includes solutions for imaging, audio, and video applications, and analog modems that enable cost-
effective Internet access. The company’s broadband access products include end-to-end solutions for xDSL networks, and PON solutions for fiber
optic applications.
www.coneꢇant.com
© 2008 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. TꢀꢁS MATEꢂꢁAꢃ ꢁS PꢂꢄvꢁDED AS ꢁS AND ꢅꢁTꢀꢄUT
General Information:
U.S. and Canada: (888) 855-4562
International: 1+ (949) 483-3000
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
ANy ExPꢂESS ꢄꢂ ꢁMPꢃꢁED ꢅAꢂꢂANTꢁES, ꢁNCꢃUDꢁNg MEꢂCꢀANTABꢁꢃꢁTy, ꢆꢁTNESS ꢆꢄꢂ
A
PAꢂTꢁCUꢃAꢂ PUꢂPꢄSE AND NꢄN-ꢁNꢆꢂꢁNgEMENT. Conexant shall not be liable for any
Doc# PBR-201444
special, indirect, incidental or consequential damages as a result of its use.
07-2720
CONEXANT [ CONEXANT SYSTEMS, INC ]
