Specifications

17
Modems|
• V.42 LAPM and MNP 2 – 4 error correction
• V.250 and V.251 commands
• Fax modem send and receive rates up to 14.4 KBps
• V.17, V.29, V.27 ter, and V.21 channel 2
• EIA/TIA 578 Class 1 and T.31 Class 1.0, and
EIA/TIA 578 Class 2 commands
• Downloadable architecture
• Caller ID detection
• Call progress, blacklisting
• Caller ID and distinctive ring detect
• Telephony/TAM
• FDSP mode using optional CX20437 voice
CODEC (S models)
• Parallel 16550A UART-compatible interface
- Serial ITU-T V.24 (EIA/TIA-232-E) logical interface
• Direct mode (serial DTE interface)
• Flow control and speed buffering
• Automatic format/speed sensing
• Serial async/sync data; parallel async data
• CX06827 ACF: 144-pin TQFP
• CX20437 VC: 32-pin TQFP (for S models only)
• Available in V.34 and V.32 bis modems in
pin-compatible packages
Applications
Desktop modems
Remote monitoring and data collection system
Standalone TAM/fax machines
Set Top Boxes
Internet appliances
Controllerless-Based Modem Solutions
The Conexant SmartHCF Host-Controlled (aka Controllerless PCI)
V.90 Modem Device Family with SmartDAA technology supports
analog data up to 56 KBps, analog fax to 14.4 KBps, Telephone
Answering Machine (TAM), voice/speakerphone (optional),
worldwide Data Access Arrangement (DAA) interface (optional),
Data Modem: V.90
V.34
V.32 bis
V.32
V.22 bis
V.22
V.23
V.21
Bell 212A
Bell 103
V.42LAPM
MNP 2-4
Fax Modem: V.34 x x x x
V. 17
V.29
V.27 ter
V.21ch.2
Class 1 Fax Commands
Class 2 Fax Commands x x x x
Features: AudioSpan x x x x
FDSP x x
Data/Fax
VoiceView Q61 x x x x
DSVD V.70 x x x x
W-Class
AT Commands
ADPCM
Group 3
T.30 Protocol
Call Progress
*Caller ID
Distinctive Ring x x x x
DTMF/Pulse Dial
16C550 Bus Interface x x x x
Memory Requirements nil nil nil nil
Power Required (mW) 790 400 400 790
Sleep Power <1 160 160 <1
No of Chips: PLCC x x x x
PQFP 4 2 3 3
PCMCIA/CARDBUS Optional
Serial x x x x
Parallel x x x x
PCI
Data Sheet no 100xxx. - - - 492
Des. Guide no 100xxx: 492 497 492 493
*Caller ID functions available for European Countries on some types.
Note. Two memory configurations are possible:
a.) 256K x 8 ROM/FLASH + 128K x 8 RAM (support and down-
load) b.) 128K x 8 ROM/FLASH + 32K x 8 RAMª
Note: For Low Power applications please call us for information,
the RC56LD family is suitable for PCMCIA/PC card applications.
ª Note: New controllers with internal 32K x 8 RAM are available
therefore reducing chipcount and PCB area.
SmartHCF
SmartHCF-USB
SmartHCF/WS
SmartHCF/W
SmartHCF/S-USB
supported
x not supported
Part Number DS56-L144-301
Description SC56D Modem Device Set (Aftermarket)
Part Number DS56-L147-021
Description SC56D Modem Device Set (Embedded)
Part Number DS28-L147-021
Description SC336D Modem Device Set
Part Number DS96-L147-021
Description SC144D Modem Device Set
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