1 Overview
Freescale Semiconductor introduces two new
Ultra-Wideband (UWB) solutions that bring full wireless
connectivity and high-speed wireless personal area
networking (PAN) to the home and mobile markets:
• The XS660 UWB Solution is a feature-rich
solution that is ideal for consumer electronics and
home applications.
• The XS660M UWB Solution is a lower power,
lower cost, mobile version of the XS660 that is
ideal for mobile and handheld applications.
With these UWB Solutions, smartphones, PDAs,
multimedia players, and digital cameras can wirelessly
connect with other consumer electronic products such as
media centers, displays, and PCs, to provide streaming
multimedia applications and file transfers.
The XS660 and XS660M UWB chipsets build on the technology developed for the first-to-market XS110
UWB chipset. Both offer selectable data rates, ranging from 28 to 660 Mbps, and optimized power
management. The XS660 and XS660M implement the IEEE 802.15.3 MAC protocol and use the
FCC-certified Direct Sequence Ultra-Wideband (DS-UWB) technology. Both comprehensive solutions
include hardware, software, tools, and development support.
Each UWB solution consists of two main components:
• MC270211 RF Transceiver
The RF Transceiver integrates three types of functionality in a single mixed-signal device: UWB
analog receive, analog transmit, and timing generator. External filters and one or two external
antennas are used with this chip.
• MC270231 Digital Baseband and Medium Access Controller (XS660)
MC270232 Digital Baseband and Medium Access Controller (XS660M)
The Digital Baseband (BB) and Medium Access Controller (MAC) interfaces the host device to
the XS660 or XS660M. It integrates a number of functions for enhanced performance and system
clock generation, including frame detection, automatic gain control (AGC), error correction,
acquisition and tracking, RF Transceiver control, and RAKE receiver. It also implements the
capabilities defined in the IEEE 802.15.3 protocol to enable high quality streaming multimedia
applications.
Both the XS660 and XS660M provide wireless connectivity with a combination of low cost, minimal
power consumption, and high data rates. This combination makes the XS660 and XS660M the ideal
solutions for consumer electronics and handheld applications.
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