BCM4748

Description

The Broadcom BCM4748 processor is the highest performance SoC in the Intensi-fi® XLR processor family. BCM4748 is an IEEE 802.11n-compliant CPU/MAC/baseband/radio AP solution designed for enterprise applications. Integrated on-chip is a powerful 533 MHz MIPS32 74K core with four-way set associative 32 KB instruction cache, a 32 KB two-way set associative data cache, and a 64-entry translation lookaside buffer. Enhanced CPU memory subsystem architecture provides increased system performance.

BCM4748 is using multiple in/multiple out (MIMO) signaling with IEEE 802.11n protocol, information is sent and received over two or more antennas simultaneously using the same frequency band, thus providing greater range and increasing throughput while maintaining compatibility with legacy IEEE 802.11a/b/g devices. BCM4748 improved functionality is accomplished through a combination of enhanced MAC and PHY implementations, including spatial multiplexing modes in the transmitter and receiver as well as advanced digital signal processing techniques to improve receive sensitivity.