CX2038LNL

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