CX20463中文资料ETC数据手册PDF规格书

[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