Slide 1 Slide 2 Slide 3 Slide 4 Slide 5 Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 Slide 19 Slide 20 Slide 21 Slide 22 Slide 23 Slide 24 Slide 25 Slide 26 Slide 27 Slide 28 Slide 29 Slide 30 Slide 31 Slide 32 Slide 33 Slide 34 Slide 35 Slide 36 Slide 37 Slide 38 Slide 39 Slide 40 Slide 41 Slide 42 Slide 43 Slide 44 Slide 45 Slide 46 Product List
Smart Grid Solutions: Smart Grid Distribution/Smart Meters Slide 21

This slide shows some of the important features of SPIRIT1 separated into four quadrants. The antenna diversity algorithm is shown in the upper left. The SPIRIT1 features one pin that is able to control an external switch in order to select the best antenna for the communication. With this feature it is possible to program the threshold and the SPIRIT1 will automatically switch from one antenna to the other, depending on the receive strength of the communication. Usually this functionality is handled directly by the host microcontroller, so SPIRIT1 frees resources in the host MCU. For power consumption, the SPIRIT1 provides operating modes to lower the consumption and out-performs the competition. It features an embedded SMPS that allows the power consumption to be as low as 24 mW. Looking at the competitor, it is possible to see that using an external DC/DC converter, the power consumption is 32 mW (higher than SPIRIT1). Comparing the sensitivity (the capability for the receiver to receive a very weak signal), it can be seen that SPIRIT1 is able to receive a signal with -120 dBm while the competitor has a sensitivity of -111 dBm, meaning longer range for the SPIRIT1. Additionally, the SPIRIT1 is part of the DASH-7 alliance, with low power and high robustness, a very wide range and a global frequency which is defined at 433 MHz. Location capabilities are enabled, and the device is available in a small form factor. These are all the DASH-7 alliance requirements for the part.

PTM Published on: 2013-08-23