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BCM4328
(R)
AirForce OneTM SINGLE-CHIP IEEE 802.11a/b/gTM MAC/BASEBAND/RADIO WITH INTEGRATED CPU
FEATURES * Highly integrated one-chip MAC, baseband, dual-band direct * * * * * *
conversion radio and ARM7TM processor for low-power embedded applications. Designed to meet exacting requirements of mobile devices, including small form factor, ultra-low power consumption, and low cost. Footprint-compatible with BCM4326 single-chip IEEE 802.11b/gTM 2.4-GHz band MAC/baseband/radio with integrated CPU. Support for multiple interface options popular in embedded designs: SDIO (1- and 4-bit) and USB 2.0. Embedded ARM7 CPU that executes the full WLAN driver, eliminating the need for complicated wireless LAN integration into the host platform. Portable streamlined software interface for easy migration to embedded operating systems. Support for advanced Bluetooth (R) coexistence algorithms with hardware interface targeted at voice and multimedia applications. On-chip boot ROM and SRAM for a complete WLAN subsystem. reference clock frequencies.
POWER MANAGEMENT * DSP architecture reduces the power required to transmit data by
30 percent.
* Low power consumption improves battery life of Wi-Fi(R) devices,
including handheld devices and consumer electronics. * Integrated CPU; designed for low CPU usage to ensure that system resources are available for handheld applications. * Dynamic power management through on-board PMU.
* Only a single 3.3V external supply voltage is required. AirForceTM FEATURE SET * SmartRadioTM: continuous calibration reduces test time and * * * *
improves manufacturability. XpressTM technology: standards-based frame bursting improves overall network efficiency. 1 2 5 Hi g h S p e e d M od e TM : s ta n d a r d s -p l u s p e r fo rm a n c e enhancement delivers best real-world performance when both client and AP support high-speed mode. Enhanced BroadRangeTM technology: standards-compliant features increase receive sensitivity to improve range and distance performance at higher data rates. Security: * WPATM (personal) and WPA2TM (personal) certified for powerful encryption and authentication * AES and TKIP in hardware for faster data encryption and IEEE 802.11iTM compatibility * Cisco(R) Compatible Extensions (CCX, CCX2.0, CCX3.0, CCX4.0) certified * SecureEasySetupTM for simple Wi-Fi setup and WPA2/WPA security configuration Worldwide support: global products supported with worldwide homologated design. OneDriverTM: single driver across all platforms--IEEE 802.11a/b/ g/n--simplifies driver update process and improves customer satisfaction.
* * Internal fractional nPLL allows support for a wide range of * Requires only a single 3.3V external supply voltage. * 3.3V/1.8V-tolerant I/O. * Support for 2.5V-5.5V VBAT supplies with a single external
switching regulator. * On-chip UART and JTAG interfaces for ease of debugging. packages.
* Available in FBGA (0.5-mm pitch) and WLCSP (0.25-mm pitch) * Integrated power amplifier for medium-transmit power embedded
devices; interface to external power amplifier for high-power applications.
* *
BCM94328 Sample Module
BLOCK DIAGRAM AND SPECIFICATIONS
BCM4328
2.4-GHz PA and Front-End Circuit
WEP/AES Encryption
IEEE 802.11 Dual-Band (2.4-GHz/5-GHz) Direct Conversion Radio 5-GHz PA and Front-End Circuit
IEEE 802.11a/g Baseband
MAC
Buffers
Host I/F: SDIO or USB 2.0 (BCM4328U)
Host I/F
Silicon Backplane
Vreg 3.3V 384-KB SRAM Ref Clock/Crystal: (12, 13, 14.4, 15.36, 16.2, 16.8, 19.2, 19.8, 20, 24, 26, 38.4 MHz, 32-kHz LPO also supported) 80-KB ROM ARM7 SPROM, UART, JTAG, GPIO Interfaces Vreg
PLL
SPROM
UART
JTAG
GPIO
Interface System Bus Support Standard Data Rate Modulation Network Architectures Operating Frequencies Operating Channels RF Output Power Antenna Connectors Power Requirements Power Consumption Security Dimensions Software Support
SDIO (4-wire, 1-wire, SPI), USB 2.0 (BCM4328U) SDIO, USB 2.0 IEEE 802.11a, IEEE 802.11b, IEEE 802.11g IEEE 802.11a/g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps; IEEE 802.11b: 11, 5.5, 2, 1 Mbps OFDM, CCK, DQPSK, DBPSK Infrastructure and ad hoc 2.4 GHz to 2.497 GHz, 4.9 GHz to 5.85 GHz 802.11g: 11 for North America; 13 for Europe; 14 for Japan 802.11a: 12 non-overlapping channels 20 dBm maximum Hardware diversity support--transmit and receive 3.3V (2.5V to 5.5V VBAT power supplies provided by using a single external switching regulator) Receive: < 295 mW Transmit: < 425 mW (at 7 dBm), < 625 mW (at 15 dBm; varies depending on external power amplifier) IEEE 802.1X; WEP, WEP2, WPA (personal), WPA2 (personal); TKIP and AES hardware acceleration, IEEE 802.11i FBGA: 10 mm x 10 mm * Windows(R) CE 5.0, Linux(R),Windows(R) XP * Portable software interface for easy migration to other embedded operating systems including Symbian, Rex, iTRON, VxWorks(R) IEEE 802.11-compliant; Wi-Fi CERTIFIEDTM
Certifications
For ordering information, contact your Broadcom Sales Representative.
Broadcom(R), the pulse logo, Connecting everything(R), the Connecting everything logo, AirForceTM, AirForce OneTM, SecureEasySetupTM, OneDriverTM, BroadRangeTM, SmartRadioTM, 125 High Speed ModeTM, and XpressTM are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Bluetooth(R) is a trademark of the Bluetooth SIG. Any other trademarks or trade names mentioned are the property of their respective owners.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2006 by BROADCOM CORPORATION. All rights reserved. 4328-PB02-R 12/05/06
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

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