Product Brief

CX06833 Serial/Parallel Modem
ImagingSmart™ Product Brief
Discrete DAA and Speakerphone Support
Product Overview
Conexant’s ImagingSmart™
portfolio includes a
comprehensive suite of
semiconductor solutions that
enable the connected home
office and information network.
Dial-up modems continue to
provide robust communication
for the embedded market.
The CX06833 modem is ideal for country-specific
embedded applications such as POS terminals, STBs,
metering, building automation, gaming, ruggedized
notebooks, remote site management, and any other
application that requires a robust dial-up modem solution.
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The CX06833 integrates the microcontroller, DSP,
memory, and support for a discrete DAA. The CX06833
supports either serial or parallel host interface
operation, and is available in a 144-pin TQFP package.
The CX06833 modem features data/fax/TAM and
optional FDSP with up to 56kbps analog data modem
operation and 14.4kbps fax modem operation. The V.92
modem includes quick connect, modem-on-hold, and
PCM upstream. The CX06833 is also available in V.34
or V.32bis options.
Key Features
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System Block Diagram
Data modem modulations
– ITU-T V.92 and V.90 (SM56D models)
– ITU-T V.34 (SM56D/SM336D)
– ITU-T V.32bis, V.32, V.22bis, V.22 fast connect,
V.23, and V.21
– FastPOS (V.29)
– Bell 212A and Bell 103
– V.250 and V.251 commands
– V.80 synchronous access mode
– Quick Connect, modem-on-hold, and PCM
upstream functions (SM56D models)
Conexant Confidential
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Data compression and error correction
– V.44 data compression
– V.42bis and MNP 5 data compression
– V.42 LAPM and MNP 2-4 error correction
Fax modem send and receive rates up to 14.4kbps
– V.17, V.29, V.27ter, and V.21 channel 2
– EIA/TIA 578 class 1 and T.31 class 1.0
TAM and optional FDSP
V.80 synchronous access mode supports hostcontrolled communication protocols with H.324
interface support
Support for many country-specific DAA
configurations
– Caller ID detection for many countries
– Call progress, blacklisting
– Internal ROM includes default values for 29
countries
– Additional modified country profiles can be stored
in internal SRAM or optional serial EEPROM
Interfaces to optional external ROM/flash ROM,
RAM, and/or serial EEPROM—Supports custom
firmware
Quick time-to-market
Low-cost solution
• www.conexant.com • 030PBR00
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CX06833 Serial/Parallel Modem | ImagingSmart™ Product Brief
Additional Features
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Data/fax/voice call discrimination
Caller ID detect
– On-hook caller ID detection
– Off-hook call waiting caller ID
detection during data mode
in V.92, V.90, V.34, V.32bis,
and V.32
Distinctive ring detect
Modem customization available
through a patch code that can be
stored in optional serial
EEPROM or internal SRAM
Telephony/TAM
– V.253 commands
– 2-bit and 4-bit Conexant
ADPCM
– 8-bit linear PCM
– 4-bit IMA coding
– 8kHz sample rate
– Concurrent DTMF, ring, and
caller ID detection
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FDSP mode using optional
CX20442 voice CODEC (S
models)
– Microphone and speaker
interface
– Telephone handset or
headset interface
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Acoustic and line echo
cancellation
Microphone gain and muting
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Speaker volume control and
muting
Built-in host/DTE interface
– Parallel 16550A UARTcompatible interface up to
230.4kbps
– Serial ITU-T V.24 (EIA/TIA232-E) logical interface up to
115.2kbps
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Serial async/sync data and
parallel async data
Thin packages support low
profile designs (1.6mm maximum
height)
– CX06833: 144-pin TQFP
– CX20442 VC: 32-pin TQFP
3.3V operation with 5V tolerant
digital inputs
Typical power use
– CX06833:
■ 161mW (normal mode)
■ 52.8mW (sleep mode)
– CX20442 VC: 5mW (Normal
mode)
Direct mode (serial DTE interface)
Flow control and speed buffering
Automatic format/speed sensing
www.conexant.com
Headquarters: 1901 Main Street, Suite 300 Irvine, CA,92614
General Information: U.S. and Canada: 888-855-4562 | International: 1 + 949-483-3000
© 2014 Conexant Systems, Inc. All rights reserved.
030PBR00