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Product Philosophy
With the growing adoption of mobile data services and higher-bandwidth air interfaces, the mobile device market is quickly moving toward multiple air interfaces in each device. Sequoia Communications targets the multimode handset and mobile device market with innovative, highly integrated RFICs based on proprietary technology. The flexibility of Sequoia Communications' FullSpectra™ architecture allows it to support multiple air interfaces, leading to highly integrated designs that shrink PCB area and reduce the bill of materials (BOM). This is critical because radios historically consume much of the PCB area and power available in mobile devices.
SEQ7400 The Industry’s First Single-Chip Multimode RF Transceiver
The SEQ7400 is the industry’s first SEQ7400 and only single-chip
multimode (GSM/GPRS/EDGE/WCDMA/HSPA and TD-SCDMA) RF transceiver. The SEQ7400
has the industry’s highest level of integration, makes the most
efficient use of silicon area, and has the lowest calibration burden
at the phone level. These innovations drive manufacturing costs down
for 3G handsets and address what are currently primary obstacles to
mass adoption of 3G technologies by consumers – cost, size and
power consumption of 3G handsets. This chip from Sequoia Communications
is based on patented FullSpectra™ polar architecture, the most efficient
architecture for WCDMA, and with that Sequoia Communications remains
the only company demonstrating working polar modulation in WCDMA/HSPA.
Moreover, this architecture will enable a cost, size and power efficient
means to integrate higher bandwidth modes, such as LTE, in subsequent
products. Click here to download
SEQ7400 data sheet (PDF).
An Unrivaled Roadmap
Sequoia Communications is committed to delivering multimode products that are essential to the market. The revolutionary SEQ7400 has established the company as a leader in multimode transceiver technology, and the company will continue to introduce products that build on the polar transmit architecture to support additional modes and bands in the most cost-effective way. Through the development of proprietary control schemes, Sequoia Communications will extend the polar loop to include the power amplifier, creating 25-40 percent improvements in system efficiency. The company will quickly enable support for the Long Term Evolution (LTE) standard and will continue to lead the market in support of next generation multimode transceivers.
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