Specifications

|Modems
16
Product Features
• Data
- V.92/V.90/V.34/V.32 bis device
- V.44, V.42 bis and MNP 5 data compression
- ITU-T V.90/K56flex, V.34, V.32 bis, V.32, V.22 bis, V.22,
V.23, and V.21; Bell 212A and Bell 103
- V.42 LAPM and MNP 2 – 4 error correction
- V.42 bis and MNP 5 data compression
•Fax
- 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
Advanced Features:
• Concurrent DTMF, ring, and caller ID detection
• Blacklisting and call progress tone detection
• Digital PBX detection and protection
• Extension pickup detection
• Remote hang-up detection
• Line-in-use detection
• Pulse-dialing support
• Sleep mode
• V.250 (ex V.25 ter) and V.251
(ex V.25 ter Annex A) commands
• V.22bis fast connect
• Internal ROM includes default values for several
countries and TBR21-compliant profiles. These can
be overridden by values stored in external serial
EEPROM or external flash ROM
• Host Interface: Serial TTL or Parallel
SCXXD Modem Device Set
Conexant’s CX06827 single-chip V.92 modem device set enables
modem designers to develop modems for desktop PCs and
Internet appliances. V.92 features include quick connect, PCM
Upstream and modem-on-hold. The new V.44 standard is also sup-
ported. This new data-compression protocol delivers data rates 10
percent through 120 percent faster than those achieved by the V.42
bis protocol. The device set supports analog data at up to 56 KBps,
analog fax at up to 14.4 KBps, TAM/telephony extensions and
voice/speakerphone (optional), and parallel/serial host interface
operation, depending on the model.
Because the modem features external firmware, modem designers
can update and customize firmware code as needed. In TAM
mode, enhanced 2- or 4-bit-per-sample coding schemes at a
sample rate of 8 KHz provide flexible format compatibility and
allow efficient digital storage of voice/audio. Also supported are
8-bit linear and IMA 4-bit ADPCM coding. This mode supports
applications such as digital TAM, voice annotation, and recording
from and playback to the telephone line. The speakerphone option
(S models), includes a CX20437 Voice CODEC (VC) in a 32-pin
TQFP. This option supports position-independent, FDSP operation
using microphone and speaker, as well as other voice/TAM
applications using handset or headset.
Features
• ITU-T data modem – V.92
• ITU-T V.90, V.34, V.32 bis, V.32, V.22 bis, V.22, V.23,
and V.21; Bell 212A and Bell 103
• V.44, V.42 bis and MNP 5 data compression
Tech Focus
V.92 Improves the Dial-up Modem Experience
1. Quick connect – This feature approximates the always on
connection of broadband access solutions by enabling
dial-up modems to complete a connection to an Internet
service provider (ISP) significantly faster than with V.90.
2.Modem-on-hold – An incoming call alert allows the modem
to go on-hold, allowing incoming calls. When the incoming
call is complete, the modem will reconnect using the quick
connect method.
3.PCM Upstream – This new modulation method increases
the upstream data rate from 33,600 bps to 48 KBps.
4.NetWaiting™ – Features an easy-to-use interface that is
configurable through the preferences menu. The user has
the ability to specify call options, ignoring all incoming calls,
accepting all incoming calls and disconnecting the Internet
connection, or screening all incoming calls and prompting the user.
Part Number DS56-L147-0xx
Description SmartACF Modem Device Set
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