User's Manual

UM-B-036
DA14580 Antenna module for QFN48 package
User manual
Revision 2.0
10
-
Dec
-
2014
CFR0012-00 Rev 1 22 of 34 © 2014
Dialog Semiconductor
5 Measurements
Receiver sensitivity (conducted) 5.1
Test description 5.1.1
In this test the conducted RF sensitivity of the QFN48 antenna module was measured.
Test setup 5.1.2
The supply voltage (3.0 V DC) was connected between the PCB pads 27 (VBAT) and 26 (GND).
The R&S
®
CBT Bluetooth
®
Tester from Rohde & Schwarz was used. Component R5 was removed.
The semi-rigid cable was soldered at this pad. See Figure 17.
Figure 17: Test setup for the conducted RF measurements
Test results 5.1.3
The conducted RF sensitivity using a ‘dirty’ transmitter is better than -90 dBm for most channels.
Lower sensitivity has been noticed on some channels. This is caused by harmonics of the 16 MHz
oscillator. The results for one of the modules are shown Table 10.