Released on: September 3, 2008, 6:52 am

Press Release Author: Redpine Signals, Inc.

Industry: Electronics

Press Release Summary: Redpine’s 802.11n RS9110 and SiTel’s advanced baseband IC
SC14450 combine into a complete and versatile VoWiFi platform.

Press Release Body: SiTel Semiconductor and Redpine Signals Announce Availability of
802.11n VoWiFi Phone Platform

Redpine’s 802.11n RS9110 and SiTel’s advanced baseband IC SC14450 combine into a
complete and versatile VoWiFi platform

Taipei — Computex — June 3, 2008 — Redpine Signals, Inc., a leading developer of
ultra low power multi-standard OFDM and MIMO silicon-based solutions, and SiTel
Semiconductor, a leading supplier of semiconductor products for Digital Cordless
Telephony, today announced the successful integration of Redpine’s ultra-low power
Lite-Fi™ 802.11n SoC and SiTel’s advanced baseband IC SC14450 into a flexible and
complete VoWiFi phone reference design. RS9110, the Lite-Fi™ product that is the
core of the world’s first 802.11n Draft 2.0 Wi-Fi CERTIFIED® SDIO card solution,
integrated with the low power SC14450, enables a new generation of Wi-Fi based VoIP
phones that would make available the advantages of 802.11n connectivity at a cost
similar to or less than those that use conventional 802.11b/g connectivity.

The RS9110, with breakthrough power consumption numbers, is designed for mobile and
handheld consumer devices with targeted Wi-Fi certified functionality for
power-saving voice/video traffic (WMM-Power Save™) and for ease of establishing
secure connectivity (Wi-Fi Protected Setup™, WPS). The RS9110 incorporates a variety
of features that ease the integration of WLAN into VoIP platforms including clock
and power management. The chip integrates a proprietary ultra-low power
multi-threaded processor that provides for a high degree of layer-2 protocol
handling within the chip, and also provides for the power-efficient offload of some
critical layer-3 functionality.

\"Redpine’s Lite-Fi product family offers differentiating performance and power
advantages achieved through six years of research and backed by over 100 patents in
all relevant areas of architecture, signal processing, algorithms and low-power
implementation,\" said Mr. Venkat Mattela, Chief Executive Officer of Redpine Signals
Inc. \"With the WLAN spectrum becoming increasingly crowded, Wi-Fi based on 802.11n
will enable capacity to increase while maintaining and enhancing user experience in
the home, office, and public hotspot scenarios. The SiTel-Redpine joint design
enables optimized system cost for wireless VoIP solutions in these environments,\" he
said.

The SC14450 is a fully integrated DECT and VoIP device, featuring a CompactRISC™
microcontroller for general processing and Man Machine Interface (MMI) functionality
and is supplemented by two user-programmable Gen2DSPs for voice CODECs and audio
processing. Furthermore, it also includes a 1.5-Watt-rms Class D power amplifier for
hands-free operation, power and battery management options including 1-, 2-and
3-cell configurations for Li-Ion and NiMH batteries, white LED control and
high-speed interfaces to color displays and USB 2.0 for direct USB battery charging.
This baseband IC allows manufacturers to offer advanced features such as color LCD
MMIs, text-to-speech, animated JPEGs, Hi-Fi audio and MP3 ring tones. This complete
set of features and the distribution of the VoIP processing on its three cores make
the SC14450 an ideal low-power solution for battery-operated wireless handsets. In
the VoWiFi platform, it provides the complete MMI, battery management, VoIP stack,
CODECs, layer-3 functions and the advanced high-end phone features.

\"The VoWiFi phone platform we are announcing today in partnership with Redpine
Signals shows SiTel’s commitment to provide best-in-class voice application
solutions\" said Mark De Clerq, Product Marketing Manager at SiTel. \"The SC14450 with
its proven low power multi-core architecture and complete peripheral set is a key
building block of this platform, and its combination with the RS9110 will enable our
customers to develop leading-edge products for the emerging 802.11n standard in a
very cost effective way.\" he added.

The jointly developed VoWiFi solution interfaces the RS9110 SoC to the SC14450
through a high-speed serial interface. A close-to-zero load WLAN driver on the host
microcontroller eases the provision of complete VoIP protocol and phone handset
functionality on SC14450.

Wi-Fi CERTIFIED™
Redpine’s Lite-Fi™ solution is Wi-Fi CERTIFIED for 802.11n draft 2.0 by the Wi-Fi
Alliance.

\"802.11n draft 2.0 is an advanced standard for delivering increased throughput,
improved range and Quality of Service (QoS) for enhanced multimedia capabilities. In
achieving Wi-Fi CERTIFIED for 802.11n draft 2.0, Redpine Signals has demonstrated
its commitment to ensuring industry interoperability and the best experience for
Wi-Fi users,\" said Wi-Fi Alliance Senior Director, Karen Hanley.

A searchable Wi-Fi CERTIFIED products database is available at www.wi-fi.org.

About Redpine Signals, Inc.
Founded in 2001, Redpine Signals is a fabless semiconductor company driving Wi-Fi®
+WiMAX® convergence products for mobile, consumer and enterprise applications with
sustainable differentiation in power and performance. Using its extensive patent
portfolio in ultra low power OFDM, MIMO and Multi-threaded processing architectures,
Redpine is making wireless convergence a reality.

Redpine is headquartered in San Jose, California with a development center in
Hyderabad, India. For more information, visit www.redpinesignals.com.

About SiTel Semiconductor
SiTel Semiconductor BV was established in June 2005, following a management buy-out
from National Semiconductor Corporation. Headquartered in ‘s-Hertogenbosch, The
Netherlands, SiTel is a fabless IC manufacturer with design centers in The
Netherlands and Greece along with regional sales offices in Hong Kong, Japan and the
U.S. The company specializes in the design, manufacturing and marketing of
high-performance low power CMOS solutions for digital cordless and corded
communication and is the world’s number one DCT supplier for cordless voice,
real-time data and VoIP. For more information, visit www.sitelsemi.com.

Contact Information:
Richard Murphy, Vice President, Marketing & Business Development
Redpine Signals, Inc.
Tel (408)748-3385, Ext 209
Email Contact: richard.murphy@redpinesignals.com
WEB:www.redpinesignals.com

SiTel Semiconductor B.V.
Mark De Clercq
Product Marketing Manager
Tel +31 (0) 73 – 640 8822
Fax: +31 (0) 73 – 640 8823
mark.de.clercq@sitelsemi.com

Web Site: http://www.redpinesignals.com/06jun08.html

Contact Details: Contact Information:
Richard Murphy, Vice President, Marketing & Business Development
Redpine Signals, Inc.
Tel (408)748-3385, Ext 209
Email Contact: richard.murphy@redpinesignals.com
WEB:www.redpinesignals.com