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AlfaPlus unveils 2.4GHz transceiver RFIC

Posted: 18 Jan 2007     Print Version  Bookmark and Share

Keywords:AlfaPlus Semiconductor  transceiver RFIC  ARF2496K  wireless HID 

AlfaPlus Semiconductor Inc. has launched State-of-the-Art 2.4GHz transceiver RFIC ARF2496K. The ultra low power ARF2496K operates in the unlicensed ISM band and targets for the wireless HID and wireless VoIP markets.

Fabricated in the 0.18?m CMOS process, ARF2496K employs GFSK technology for less interference to other device and more multiple users in the same environment and programmable frequency synthesiser for multi-channel capability. The PLL lock time of less than 200us makes frequency hopping viable and hence provides a solution to the co-existence issues. Features such as digital and analogue RSSI, image rejection, CDR and data scrambler also reduce system design efforts. On-chip packet encapsulation (preamble, destination address, scrambled data, burst count, source address and CRC) also off loads the job from MCU, and a lower loading and lower cost MCU would reduce the BOM cost and firmware design complexity.

Given the typical operating current of no more than 18mA in receiver mode and 13mA at 0dBm in transmitter mode, and a power saving mode with no more than 1?A current consumption, the ARF2496K with Multiple-Packet Burst mode could reduce the averaging current consumption dramatically and reduce the MCU load, making it the ideal solution for wireless portable applications. The supply voltage of 1.9V ~ 3.6V would also help drain the battery capacity to the last minute. A well-designed wireless mouse thus could have a typical battery life of more than one year.

Requiring only a few external components and with the programmable output power level up to 0dBm and a sensitivity of ?85dBm at 1Mbps and ?93dBm at 250Kbps, the ARF2496K transceiver RFIC enables cost effective, low power consumption, multi-channel and easy to implement 2-way wireless communication links which in turn, reducing R&D schedules, expenses and uncertainties, while accelerating time to market for wireless applications.

Designed for compliance to EMI regulations worldwide, ARF2496K has already been pre-tested and verified with a reference design module board, together with all the design base (including schematics, PCB layout and BOM) would help provide a solid jumpstart to any potential customers.

The ARF2496K is housed in a 4-by-4mm, QFN24 package. This small size package makes the module board compact and slim, incredibly fit for today's portable design.

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