Global Sources
EE Times-India
Stay in touch with EE Times India
EE Times-India > Embedded

SoC RF transmitter targets remote-keyless entry apps

Posted: 27 Jul 2010     Print Version  Bookmark and Share

Keywords:remote control  SoC  RF  transmitter  keyless 

 EZRadio Si4010 SoC

Silicon Laboratories Inc., debuts the EZRadio Si4010 single-chip radio frequency (RF) transmitter that combines its RF microcontroller and its all-CMOS oscillator technologies to slim down their bill-of-materials (BOM) to one external capacitor. This new wireless remote-control system-on-a-chip (SoC) is designed for remote-keyless entry applications such as garage door openers, building automation remotes, secure-entry devices and other remote controls that require only a one-way RF link.

Silicon Labs claims its Si4010 RF transmitter maintains 150- or 250- parts per million accuracy in its carrier frequency over commercial temperature ranges and industrial temperature ranges, respectively. The 8051-based RF microcontroller also auto-tunes a printed-circuit board (PCB) antenna with on-chip variable capacitors that dynamically match the antenna's inductance. The chip also supports programmable edge-rate control for on-off keying, power outputs up to +10dBm and standby current consumption as low as 10nA.

On-chip peripherals include wake-on-touch general-purpose I/O, 20-bit EEPROM counter, LED driver, sleep timers, debugger and 128-bit Advanced Encryption Standard accelerator for securing RF links.

Silicon Labs EZradio SoC requires only one external component (capacitor at right) whereas traditional SAW designs require as many as 41 external components.

- R. Colin Johnson
EE Times

Comment on "SoC RF transmitter targets remote-ke..."
*  You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.


Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

Back to Top