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Wireless IC combines high speed, ultra-low power and cost

Posted: 19 Sep 2005 ?? ?Print Version ?Bookmark and Share

Keywords:nordic semiconductors? wireless ic? nrf24l01?

The latest addition to Nordic Semiconductors' portfolio of 2.4GHz wireless ICs promises to merge high speed with ultra-low power and cost. According to the press release, the new nRF24L01 will enable ultra-low cost and power applications such as wireless desktops and intelligent sports equipment. This solution will enable the lowest BOM in any portable 2.4GHz battery operated device today, added the company.

The nRF24L01 IC features the MultiCeiver solution in which on-chip hardware supports up to six simultaneous wireless devices; an on-chip Link Layer logic that simplifies firmware design; 2Mbps that enables high quality VoIP; relaxed external component specification for ultra low solution cost; 5V tolerant signal input pads; and a 60ppm crystal.

Nordic added that the nRF24L01 represents a breakthrough for coin cell battery operated equipment in the 2.4GHz frequency band. The entire solution, including Link Layer and MultiCeiver logic, more than doubles the battery lifetime compared to existing nRF24XX solutions from the company. Compared to existing Bluetooth technology, Nordic added, the nRF24L01 consumes fractions of the power while at the same time offering higher effective data speeds.

The Enhanced ShockBurst feature, which incorporates the entire link layer needed for a bidirectional protocol, eliminates the need for an application microcontroller with high clock speed and large memory. The nRF24L01 also includes a Carrier Sense signal which is used to detect frequency stationary systems such as WLAN. The high speed combined with unique switching times virtually eliminates any chance of collision with frequency hopping systems such as Bluetooth, added the company.

Priced at $1.20 in 10,000-unit quantities, the nRF24L01 is housed in a Pb-free, 20-pin 4-by-4mm QFN package. Volume shipments will commence on December 2005.

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