Product Brief

CX95110/CX20548 SSF Fax Modem
ImagingSmart™ Product Brief
Fax Data Pump with Fourth Generation SmartDAA®
Product Overview
Key Features
Conexant has been providing fax modem solutions for
over five decades with the largest installed base of fax
modems in the market. Conexant’s comprehensive
solutions include both a hardware and softwareenabling design for ease and flexibility with quick timeto-market.
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Conexant’s CX95110 SSF336/314 high performance
fax modem family with SmartDAA® technology offers
ITU-T V.34 half-duplex mode operation up to
33,600bps, as well as synchronous G3 facsimile speeds
up to 14,400bps. The CX95110 supports the host
interface through an SPI bus minimizing pin count that
allows for smaller packages.
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The SSF336/314 device set consists of two devices:
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CX95110 HSD with an integrated modem DSP and
a SmartDAA SSD in a 28-pin QFN package
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CX20548 SmartDAA 4 LSD in a 16-pin QFN
package
An optional CX20548 CODEC (LSD) in a 16-pin QFN is
available for external handset support.
Because Conexant’s SmartDAA 4 LSD builds on three
generations of market-leading silicon DAA devices and
reduces BOM costs and necessary board space, it
makes it the most cost-efficient silicon DAA in the
market. The SmartDAA 4 LSD eliminates the need for
costly analog transformers, relays, and opto-isolators
that are typically used in country-specific discrete DAA
implementations. The result is a worldwide reduced
system cost solution using a single BOM. The
SmartDAA 4 is system-powered, making it the most
reliable and best performing silicon DAA in the market.
The CX95110 is supported by a comprehensive
software suite that simplifies the design-in process.
Conexant Confidential
• www.conexant.com • 038-511PBR00
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Two-wire fax modem modes with send and receive
data rates up to 33,600bps
– V.34 half-duplex fax modem mode (SSF336)
– V.17, V.29, V.27ter, and V.21 channel 2
– Short train option in V.17 and V.27ter
V.34 half-duplex ARA
PSTN session starting—V.8 and V.8bis signaling
HDLC support at all speeds
– Flag generation, 0-bit stuffing, and ITU CRC-16
or CRC-32 calculation and generation
– Flag detection, 0-bit deletion, and ITU CRC-16
or CRC-32 check sum error detection
– FSK flag pattern detection during high-speed
receiving
Tone modes and features
– Programmable single or dual tone generation
– DTMF receiver
– Tone detection with three programmable tone
detectors
Auto-dial and auto-answer control
Receive dynamic range of –3dBm to –43dBm for
V.17, V.29, V.27ter, and V.21 channel 2
Caller ID (V.23, 1200bps Rx) demodulation
ADPCM voice mode (Conexant proprietary)
System Block Diagram
CX95110/CX20548 SSF Fax Modem | ImagingSmart™ Product Brief
Additional Features
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Programmable RLSD turn-on
and turn-off thresholds
Programmable transmit level of
–4dBm to –15dBm
Two 16-byte FIFO data buffers
for burst data transfer with an
extension up to 255 bytes
Digital speaker output to monitor
received signals
V.21 channel 1 and channel 2
flag detect
Support for external handset
(voice conversation)—Requires
use of CX20548 LSD
3.3V only operation
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28-pin QFN package (HSD)
Typical power consumption
– Normal mode: 264mW
– Sleep mode = 59.4mW
– Deep Sleep mode = 16.5mW
PRAM download capability
SmartDAA Features
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Minimum support component
count and cost
Eliminates costly line transformers,
relays, and opto-isolators
Enables single, worldwide board
configurations
Digital PBX line protection
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System-side powered DAA
operates under poor line current
supply conditions
Wake-on-ring
Ring detection
Line polarity reversal detection
Line current loss detection
Pulse dialing
Line-in-use detection—Detects
while on-hook
Extension pick-up detection—
Detects while off-hook
Remote hang-up detection—
Efficient call termination
Meets worldwide DC V-I mask
requirements
SSF336/314 Product Ordering Guide
Ordering Number
Modem Model
HSD
SmartDAA4 LSD
Handset CODEC Part
Number
G3 Fax
Up to
14,400bps
V.34 Fax
Up to
33,600bps
DSFX-L510-053
SSF336
CX95110-53Z
CX20548-11Z/C1
N/A
Yes
Yes
DSFX-L510-063
SSF336-HS
CX95110-53Z
CX20548-11Z/C1
CX20548-13Z/C2
Yes
Yes
DSFX-L510-051
SSF314
CX95110-51Z
CX20548-11Z/C1
N/A
Yes
No
DSFX-L510-061
SSF314-HS
CX95110-51Z
CX20548-11Z/C1
CX20548-13Z/C2
Yes
No
1 = The device is marked as 20548-A on the package.
2 = The device is marked as 20548-C on the package.
Note: All devices are lead-free (Pb-free) and RoHS-compliant. These devices are compatible with leaded re-flow
processes.
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.
038-511PBR00