User's Manual

UM-B-045
DA14580 Range extender v.2 reference application
Company confidential
User manual
Revision 1.1
14-September-2015
CFR0012-00 Rev 1
26 of 60
© 2015 Dialog Semiconductor
Antenna width b.
Antenna height c.
Clearance between the antenna arm and GND plane below d.
Minimum GND plane size required for correct operation of the antenna e.
Antenna traces width f.
Power system and requirements 4.5
The Range Extender v.2 module is supplied by a single power supply through pins VBAT_3V. For
the DA14580 SoC, the VBAT_3V voltage variations are handled by the internal DC-DC converter.
The DC-DC converter’s external components are an inductor L1 (2.2 uH) and three capacitors C3,
C1 and C2 (all three capacitors are equal to 1 uF).
The RF power amplifier and its circuitry are supplied directly from the external power source. The
module is intended for use with a +3 V coin cell battery (e.g CR2450 type). The V
BAT_3V
voltage range
is 2.4 V to 3.0 V, whereas the absolute maximum voltage is 3.6 V.
The overall current consumption in Tx mode does not exceed 17 mA @ 3.0 V supply. The current
consumption by the front end circuits (amplifier) does not exceed 11 mA, whereas in extended- sleep
mode the consumption of the system is expected to be in less than 1.6 uA.
Figure 23: Current consumption for Advertisement frame
Trimming the 16MHz Xtal 4.6
For ensuring best operation of the Module, the 16MHz XTAL must be trimmed. The frequency is
trimmed by two on-chip variable capacitor banks. Both capacitor banks are controlled by the same
register. For trimming the XTAL apply procedure described on AN-B-020
3
: End product testing and
programming guidelines.