BCM4328
®
AirForce One™ SINGLE-CHIP IEEE 802.11a/b/g™
MAC/BASEBAND/RADIO WITH INTEGRATED CPU
FEATURES
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Highly integrated one-chip MAC, baseband, dual-band direct
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conversion radio and ARM7™ 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/g™ 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
®
coexistence algorithms with
hardware interface targeted at voice and multimedia applications.
On-chip boot ROM and SRAM for a complete WLAN subsystem.
POWER MANAGEMENT
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DSP architecture reduces the power required to transmit data by
30 percent.
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Low power consumption improves battery life of Wi-Fi
®
devices,
including handheld devices and consumer electronics.
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Integrated CPU; designed for low CPU usage to ensure that system
resources are available for handheld applications.
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Dynamic power management through on-board PMU.
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Only a single 3.3V external supply voltage is required.
AirForce™ FEATURE SET
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SmartRadio™: continuous calibration reduces test time and
improves manufacturability.
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Xpress™ technology: standards-based frame bursting improves
overall network efficiency.
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1 2 5 Hi g h S p e e d M od e ™ : s ta n d a r d s -p l u s p e r fo rm a n c e
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Internal fractional nPLL allows support for a wide range of
reference clock frequencies.
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Requires only a single 3.3V external supply voltage.
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3.3V/1.8V-tolerant I/O.
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Support for 2.5V–5.5V VBAT supplies with a single external
switching regulator.
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On-chip UART and JTAG interfaces for ease of debugging.
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Available in FBGA (0.5-mm pitch) and WLCSP (0.25-mm pitch)
packages.
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Integrated power amplifier for medium-transmit power embedded
devices; interface to external power amplifier for high-power
applications.
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enhancement delivers best real-world performance when both
client and AP support high-speed mode.
Enhanced BroadRange™ technology: standards-compliant
features increase receive sensitivity to improve range and distance
performance at higher data rates.
Security:
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WPA™ (personal) and WPA2™ (personal) certified for powerful
encryption and authentication
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AES and TKIP in hardware for faster data encryption and IEEE
802.11i™ compatibility
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Cisco
®
Compatible Extensions (CCX, CCX2.0, CCX3.0, CCX4.0)
certified
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SecureEasySetup™ for simple Wi-Fi setup and WPA2/WPA
security configuration
Worldwide support: global products supported with worldwide
homologated design.
OneDriver™: single driver across all platforms—IEEE 802.11a/b/
g/n—simplifies driver update process and improves customer
satisfaction.
BCM94328 Sample Module
BOARDCOM [ Broadcom Corporation. ]
