User's Manual

UM-B-036
DA14580 Antenna module for QFN48 package
User manual
Revision 2.0
10
-
Dec
-
2014
CFR0012-00 Rev 1 24 of 34 © 2014
Dialog Semiconductor
Transmitter output power (conducted) 5.2
Test description 5.2.1
In this test the conducted RF output power of the QFN48 antenna module was measured.
Test setup 5.2.2
The supply voltage (3.0 V DC) was connected between the PCB pads 27 (VBAT ) and 26 (GND).
The integrated antenna was bypassed by removing component R5. A short RF semi-rigid cable was
connected to this pad. See Figure 17.
The R&S®CBT Bluetooth® Tester from Rohde & Schwarz was used. Bursts of 10 packets were
transmitted by the DA14580. The packet length was 37 bytes and the pattern was ‘01010101’.
Test results 5.2.3
The results of the output power measurements for one of the modules are given in Figure 18.
Red: maximum
Blue: average
Green: minimum
Figure 18: Conducted output power per channel
Current consumption 5.3
Test setup 5.3.1
The board used in the test presented has optimal RF performance. The following instruments were
used for the test:
● Multimeter
● 3 V, 100 mA power source for peak current
● 3 V, 10 µA power source for sleep current