Wireless IC device reduces complexity of one way wireless links

According to SiLabs, the Si4010 rf transmitter is the industry's first single chip remote control IC requiring only one external bypass capacitor, a pcb, battery and external case with pushbuttons to create a complete wireless remote control. Designed for consumer, industrial and automotive applications, the Si4010 SoC rf transmitter is said to optimise remote keyless entry (RKE), garage door opener, remote control, building automation and security device designs while ensuring one-way link integrity. Based on a crystal-less architecture, the it is designed to achieve +/-150ppm carrier frequency accuracy over the commercial temperature range and +/-250ppm over the industrial temperature range. SiLabs claims this is twice the accuracy of traditional surface acoustical wave (SAW)-based transmitters – without using an external crystal. "The Si4010 is an optimal sub-GHz transmitter SoC for cost sensitive wireless one way link applications," said Rafi Fried, general manager of SiLabs' wireless products. "The Si4010's high level of integration significantly reduces the transmitter node's bill of materials, design time and complexity versus competing discrete-intensive solutions that typically contain more than 20 separate components." Samples of the Si4010 transmitter and the Si431x receivers are available now.