[Conexant]

Host-Processed, V.90/K56flex Modem Device Set with CX11250 Host Side Device, CX20463 SmartDAA, and Optional CX20437 Voice Codec for PCI Bus/Mini PCI Based Mobile Applications

INTRODUCTION
OVERVIEW
The Conexant SmartHSF Host-Processed (SoftK56) V.90/K56flex Modem Device Family with SmartDAA technology supports analog data up to 56 kbps, analog fax to 14.4 kbps, telephone answering machine (TAM), and PCI Bus/Mini PCI host interface operation. In addition, the device set optionally supports cellular phone interface (PDC high speed/PDC packet data, PHS data, CDMA/CDMA Packet data, GSM data) or voice/speakerphone. These modem devices meet the size and power requirements of the mobile environment. Table 1-1 lists the available models.
The modem operates with PSTN telephone lines in the U.S./Japan/Canada and, optionally, worldwide. Optional cellular interface supports Japanese PDC (Personal Digital Cellular) and PHS (Personal Handyphone System) phones, GSM (Global System for Mobile Communications) phones, and cdmaOne (IS-95A/IS-95B) phones. Modem and cellular data protocol software is provided.
Conexants SmartDAA technology (patent pending) eliminates the need for a costly line transformer, relays, and opto isolators typically used in discrete DAA (Data Access Arrangement) implementations. The SmartDAA architecture also simplifies product implementation by eliminating the need for country-specific board configurations enabling worldwide homologation of a single modem board design.

FEATURES
General Modem Features
• V.90 data modem with receive rates up to 56k bps and send rates up to V.34 rates
   − ITU-T V.90, K56flex, V.34 (33.6 kbps), V.32 bis, V.32, V.22 bis, V.22, V.23, and V.21; Bell 212A and 103
   − V.42 LAPM and MNP 2-4 error correction
   − V.42 bis and MNP 5 data compression
   − V.250 and V.251 commands
• V.17 fax modem with 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 commands
• Telephony/TAM
   − V.253 commands
   − 8-bit µ-Law/A-Law coding (G.711)
   − 8-bit/16-bit linear coding
   − 8 kHz sample rate
   − Concurrent DTMF, ring, and Caller ID detection
• V.80 synchronous access mode supports host-controlled communication protocols with H.324 interface support
• V.8/V.8bis and V.251 commands
• Cellular data hardware interface and software support (C models)
   − Protocol stacks for PDC high speed data, PDC packet data, PHS data, CDMA IS-95A/IS-95B data, and GSM data
   − API for customer-provided cellular data protocol stack
• Full-duplex Speakerphone (FDSP) Mode (S models)
   − Microphone and speaker interface
   − Telephone handset/headset interface
• Data/Fax/Voice call discrimination
• Host software/MMX-based digital signal processing
• Single configuration profile stored in host
• Operates in U.S./Japan/Canada
• Worldwide operation including U.S./Japan/Canada (W models)
   − Complies to TBR21 and other country requirements
   − Caller ID detection
• System compatibility
   − Windows 95/98, Windows NT 4.0, Windows 2000, and Windows Millennium (Windows Me) operating systems
   − Microsoft/Intel PC 99 Windows Hardware Designer’s Guide-compliant
   − Advanced Configuration and Power Interface (ACPI)
   − Unimodem/V compliant
   − Pentium 166 MHz MMX-compatible PC or greater
   − 16 Mbyte RAM or more
• Thin packages support low profile designs
   − CX11250 HSD: 100-pin TQFP (1.2 mm max. height)
   − CX20463 LSD: 32-pin TQFP (1.6 mm max. height)
   − CX20437 VC: 32-pin TQFP (1.6 mm max. height)
• +3.3V operation with +5V tolerant digital inputs

PCI Bus Host Interface Features
• 32-bit PCI Bus host interface
   − Meets PCI Local Bus Specification Rev. 2.2
   − PCI Bus Mastering interface
   − 33 MHz PCI clock support
• Supports Power Management
   − Meets PCI Bus Power Management Spec. Rev. 1.1
   − ACPI Power Management Registers
   − APM support
   − PME# support
   − Vaux/Vpci power switching support (-PCI model option)
   − VauxDET support

SmartDAA Features
• Digital PBX line protection
• System side powered DAA operates under poor line current supply conditions
• Wake-on-ring
• Ring detection
• Line polarity reversal detection
• Line current loss detection
• Caller ID (CID) detect
• Pulse dialing
• Line-in-use detection – detects even while on-hook
• Remote hang-up detect – for efficient call termination
• Extension pickup detect
• Call waiting detection
• Meets worldwide DC VI Masks requirements (W models)

Applications
• Laptop, notebook, and handheld computers
• PCI Bus/Mini PCI embedded system boards
• PCI Bus/Mini PCI plug-in cards