BCM94321MC中文资料

Intensi-fi?

DRAFT-802.11n PRODUCT FAMILY

Intensi-fi Reference Designs

?First IEEE 802.11n draft-compliant Wi-Fi ?

solution

?BCM4321—MAC/baseband controller for draft-802.11n and

802.11a/b/g devices (PCI/PCI Express ?

/CardBus)

?BCM2055—2x2 dual-band single-chip radio—3x3 and 4x4antenna options for increased range and performance

?All CMOS implementation of the world's most advanced system architecture for draft-802.11n networks

?Fully backward-compatible with IEEE 802.11a/b/g legacy devices

?Allows cost-effective system design using low-cost PCB and single-sided assembly

?

High-performance features across the Intensi-fi? product line ?High-performance whole house wireless coverage ?OneDriver?

?SecureEasySetup??SmartRadio? ?WPA?/WPA2?

?Cisco ? Compatible Extensions (CCX4)

?Full-rate Advanced Encryption Standard (AES)engine in hardware

?WMM? for quality of service

?Reference Designs

?BCM94321CB2—CardBus reference design ?BCM94321MP—Mini PCI reference design

?BCM94321MC—PCI Express Mini Card reference design ?BCM94704NR—AP/Router reference design

?BCM94705NR—GbE AP/Router reference design

?Two spatially multiplexed streams support data rates up to 270 Mbps.?Increased rate/range performance enhances user satisfaction while reducing product support calls.

?Self-calibrating architecture allows high-yield board manufacturing.

?2x2 antenna structure maintains form factor compatibility with high-volume IEEE 802.11a/g industrial designs.

?Low-cost CMOS implementation for MAC, baseband, and radio allows integration with Broadcom's cable/DSL/set-top/VoIP chipsets.

?OneDriver: Single driver across platforms simplifies driver update process and improves customer satisfaction.?Designs meet Pb-free/RoHS worldwide requirements.

?

SecureEasySetup for simple Wi-Fi setup and security configuration.

?Wireless client cards for desktop and notebook PCs (PCI, PCI

Express, Mini Card, Mini PCI, and CardBus form factors)

?High-performance draft-802.11n router solutions with the BCM4704 SoC and BCM4705 SoC

?Home multimedia entertainment wireless networks ?Consumer Wi-Fi devices and other embedded applications

requiring high-performance throughput and range

F E A T U R E S

S Y S T E M /C H I P B E N E F I T S

A P P L I C A T I O N S

O V E R V I E W

Phone: 949-450-8700Fax: 949-926-5203

E-mail:info@https://www.wendangku.net/doc/0f1427832.html, Web:https://www.wendangku.net/doc/0f1427832.html,

BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013Irvine, California 92619-7013

? 2007 by BROADCOM CORPORATION. All rights reserved.Intensi-fi-PB01-R

03/12/07

BCM4321 and BCM2055 AP/Router Block Diagram

Intensi-fi Specifications

Interface/System bus support PCI/CardBus/PCI Express

Standard IEEE 802.11g, 802.11b, 802.11a, Intensi-fi draft-802.11n Data rate (Mbps)

54, 48, 36, 24, 18, 12, 9, 6, 11, 5.5, 2, 1

20 MHz BW: 130, 117, 104, 78, 52, 39, 26, 1340 MHz BW: 270, 243, 216, 162, 108, 81, 54, 27Modulation

PSK/CCK, DQPSK, DBPSK, OFDM Network architectures Infrastructure and ad hoc

Operating frequencies 2.4 GHz—2.5GHz, 4.9GHz—5.85GHz

Operating channels 2.4 GHz: 11 for North America, 13 for Europe, and 14 for Japan 5 GHz: 12 for North America, 19 for Europe, and 4 for Japan RF output power 2x2: 2.4GHz 16dBm ±1.5dB, 5 GHz 14.5dBm ±1.5 dB

Antenna connectors Two or more antennas for simultaneous transmission and reception Power requirements 1.8V (3.3V for reference designs)Power consumption Average standby <130mW

264 – 300 MHz MIPS32 Core with MMU

PCI 2.3 Host

Magnetics 10/100 WAN RJ-45

Quad Magnetics 10/100 LAN RJ-45

Flash Memory

DDR/SDR SDRAM

BCM4704BCM4321

x1

CardBus/Mini PCI/PCI Express

2.5V Reg

1.8V Reg

SPROM I/F 4 Kb OTP

Security

I n t e r n a l B u s

JTAG

PCI Express

PCI V2.3

Intensi-fi

Draft – 802.11n PHY/AFE

BCM2055 RF Radio

Intensi-fi Draft – 802.11n

MAC

USB 1.1 Host

LED GPIO

USB 1.1 Host or Device

Modem/ Audio/ GPIO

UART

10/100 MAC 10/100 MAC

EBI Host

SDRAM I/F

AP/Router

BCM5325E/F