User's Guide

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CONFIDENTIAL

TigoRFcore User Guide

3 Application and Implementation

3.1 Power source

DC power of 3.3V and 1.8V should be supplied to the power input ports:

Supply 1.8V DC to Pin number 18 – VDD_IO

Supply 3.3V DC to Pin number 12 – VBAT

3.2 External clock

Slow clock of 32.768kHz should be provided for module startup.

Supply slow clock to pin number 8 - SLOW_CLK_IN

3.3 Reset

For resetting the module apply GND to pin number 16 – nSHUTD, for releasing reset apply 1.8V

3.4 GPIO

This GPIO is used for general purpose, may be used for debugging HW/SW issues for

development.

Pin 23 – IO1