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RSSRF Micro Devices Announces Availability Of Polaris 2 Total Radio Solution
December 16, 2004
Greensboro, NC -- RF Micro Devices, Inc. (RFMD) today announced production availability of its Polaris 2 Total Radio solution.
Comprised of RFMD's Polaris 2 transceiver and PowerStar power amplifier module, RFMD's highly integrated Polaris 2 transceiver solution is designed to support up to four frequency bands (850, 900, 1800, 1900 MHz) and performs all the radio functions of GSM, GPRS, and EDGE cellular handsets.
The Polaris 2 transceiver is the industry's first transceiver featuring a unique direct digital polar modulator, which reduces transmit power consumption by approximately 30% when compared to other transmit architectures, including direct launch and polar loop transmitters. The Polaris 2 transceiver's advanced transmit methodology provides handset developers ease of use and reduced heat dissipation, and it also provides consumers longer talk time and battery life.
The Polaris 2 transceiver provides handset manufacturers an integrated radio solution in a small form factor that helps reduce component count and total cost. In field tests with a baseband, the Polaris 2 transceiver achieved better than -109 dBm receive sensitivity in the low bands and better than -108 dBm in the high bands. This receive sensitivity helps reduce infrastructure costs and dropped calls. In addition, the Polaris 2 transceiver features increased dynamic range and the use of digital signal processing in the receiver for excellent performance in fading and blocking conditions, which also reduces dropped calls.
The Polaris 2 transceiver implements both very low IF (VLIF) and direct conversion receive (DCR) architectures and provides selectable analog I/Q and digital baseband interfaces, which enables ease of implementation with multiple leading baseband solutions. Additionally, by integrating voltage control oscillators (VCOs) and loop filter components, the Polaris transceiver provides customers superior levels of integration and a lower bill of materials (BOM) cost.
Source: RF Micro Devices
