SiGe Semiconductor, Inc. Delivers High Performance, Flexible WiMAX Transceiver
Broad tuning range and multiple base band interfaces allow design re-use to meet worldwide requirements.
Ottawa, OntarioSiGe Semiconductor, Inc. announced a transceiver chipset designed to optimize performance of WiMAX systems, broadband wireless access
(BWA) applications, and wireless local loop equipment. The transceiver features a broad transmit tuning range and multiple base band interfaces, allowing equipment manufacturers to reduce cost and time-to market by re-using a proven RF chain to address worldwide requirements.
SiGe Semiconductor's new transceiver chipset provides system designers with the full transmit and receive paths, and requires minimal external components. Featuring industry-leading performance with optimal gain control, low phase noise, and low noise figure, the chipset supports a large bandwidth and transmission range required for simultaneous broadband delivery of high-speed voice, data and video services.
The new transceiver is equipped with multiple base band interfaces, able to support HD-FDD BPS-IF, HDFDD IQ, and TDD IQ base band controllers. This, combined with a wide bandwidth of 3.3-3.8 GHz and 2.3-2.7GHz, allows manufacturers to use a single solution to address worldwide frequencies. Original equipment manufacturers thus reduce cost of inventory and design resources when bringing new WiMAX capable products from concept to market.
The new transceiver chipset includes four devices: the SE7051 IF transceiver, the SE7351L 3.5GHz RF transceiver, the SE7251L 2.5GHz RF transceiver, and the SE7380L switch. The SE7051L IF transceiver interfaces directly to most commercially available base band controllers, providing high integration, low noise, and high linearity. The device features dual IF and RF synthesizers as well as a high speed digital VGA delivering 50dB of gain control.
The SE7351L and SE7251L RF transceiver ICs are designed to deliver the high linearity and low phase noise that is ideal for high order modulation schemes. The new transceivers are equipped with a high-speed receive automatic gain control (AGC). The SE7351L and SE7251L support tuning ranges from 3.3 to 3.8GHz and 2.3 to 2.7GHz, respectively, and deliver 40dB of gain control.
The SE7380L is a GaAs PHEMT Single Pole Double Throw (SPDT) switch ideally suited for transmit and receive switching applications in the 3 to 4GHz band. The part is designed for low insertion loss and high linearity for maximum dynamic range with complex modulation formats.
The SE7351L and SE7251L are each packaged in a 40-lead QFN package measuring 6x6mm, the SE7051L is packaged in a 56-lead QFN package measuring 8x8mm, and the SE7380L is packaged in a 6-pin QFN.
The complete transceiver chipset is priced at US $30.00 each in volume quantities. Samples are available now, with production scheduled for Q32005.
SiGe Semiconductor, Inc.,
+1 613 820 9244, www.sige.com