Embedded Dial-Up Modems
Controller-Based Modems
CSM92/34/32 Serial Modem with
4th Generation SmartDAA
CX93011
Conexant’s portfolio includes a comprehensive suite of semiconductor
solutions for communications and consumer applications.
Controller-Based Modem with SmartDAA® 4 for
Embedded Applications
Conexant’s portfolio includes a comprehensive suite of semiconductor
solutions for broadband communications and the digital home. The CX93011
modem paired with the CX20548 SmartDAA® 4 Line Side Device (LSD), is
ideal for embedded applications such as Point of Sale (POS) terminals, Set-
Top Boxes (STB), Video Recorders, Meters, Security Systems, Remote Site
Management and other applications that require robust dial-up connectivity.
The CX93011 serial modem device set consists of a CX93011 serial interface
modem in a 6x6mm 20-pin Quad Flat-No Lead (QFN) package and CX20548
SmartDAA 4 LSD in a 4mmx4mm 16-pin QFN package.
The device set integrates the microcontroller, digital signal processor, memory,
and a worldwide DAA/telephone line interface function that operates with
public switched telephone network (PSTN) telephone lines worldwide.
The V.92 modem supports data modes up to 56 kbps and includes features
such as Quick Connect, Modem-on-Hold, and PCM Upstream. A V.34 option
and V.32bis option are also available.
Conexant’s 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 bill of materials. The SmartDAA 4 is system-powered,
making it the most reliable and best performing silicon DAA in the market.
The CX93011 device set is pin-compatible with the CX90240 device set. USB
(CX93010) and serial/USB speakerphone (CX93021) versions of the CX93011
family chipsets are available as well.
Part Number
CX93011
Description
CSM92/34/32 Serial Modem with
4th Generation SmartDAA
Distinguishing Features
• Controller-based modem, no external
memory required
• V.92, V.34 and V.32bis options–V.92
includes Quick Connect, Modem-on-Hold
and PCM Upstream
• V.17/V.29 Fax Class 1/1.0 and Fax Class 2
• V.29 FastPOS and V.22 Fast Connect
• SIA Protocol and Contact ID
• V.80 sync access mode, synchronous and
asynchronous DTE interface
• V.44/V.42bis and MNP5 data compression
• V.42 and MNP2-4 error correction
• Supports 28.224 MHz or 27 MHz operation
• Serial interface (USB and USB/serial
versions available)
• Optional NVRAM support
• Pin compatible with CX90240 chipset
• CX20548 SmartDAA 4 LSD in a 16-pin QFN
• Worldwide support
• Quick time-to-market reference design
• Reference design supports 6KV isolation
CONEXANT [ CONEXANT SYSTEMS, INC ]
