1 / 3

DAC Student Design Competition

15mah NiMH. 1.0 - 1.4v. charge pump. Shaker. < 200mv bias. radio PA power enable. analog switch. power switches. linear regulator. shunt reg. Radio digital power (GPIO pin). 2.0 – 2.8v. 1.0v. 0.65v. SPI pwr on/off. SPI VDD. TPMS Sensor. SPI serial IF. MSP430 uC. level

jolene
Télécharger la présentation

DAC Student Design Competition

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 15mah NiMH 1.0 - 1.4v charge pump Shaker < 200mv bias radio PA power enable analog switch power switches linear regulator shunt reg. Radio digital power (GPIO pin) 2.0 – 2.8v 1.0v 0.65v SPI pwr on/off SPI VDD TPMS Sensor SPI serial IF MSP430 uC level shifters PA pwr on/off Tx VDD radio Wakeup SPI serial IF SPI serial IF JTAG external IF Tx data Tx data RF Sensor/Digital Interface DAC Student Design Competition “Picocube: A 1cm3 Sensor Node Powered by Harvested Energy” Yuen-Hui Chee, Mike Koplow, Michael Mark, Nathan Pletcher, Mike Seeman, Fred Burghardt, Dan Steingart, Jan Rabaey, Paul Wright, Seth Sanders

  2. Cube Anatomy on a dime radio COB die • Stacked PCBs • 1cm square switch/power board top/bottom sensor board #1 top/bottom storage board top/blank bottom radio board top/bottom sensor board #2 top/bottom uC board top/bottom

  3. Custom PicoCube Transmitter w/ FBAR 10 kbps, 10 m range at 0 dBm Supports FSK modulation, but useful for OOK Custom 200Ω antenna, matching PA Power Management IC 2 switched-capacitor converters (0.7V, 2.1V) 84% efficient Synchronous Rectifier 88% efficient from shaker Ultra-low-power references and other circuitry Custom Technology

More Related