UM-B-074
DA1468x Range Extender Daughterboard
User Manual
Revision 1.1
17-Apr-2018
CFR0012
3 of 60
© 2018 Dialog Semiconductor
15.1.2.2
Test Setup ....................................................................................... 40
15.1.2.3
Test Results ..................................................................................... 40
15.1.3
Current Consumption ........................................................................................... 41
15.1.3.1
Test Setup ....................................................................................... 41
15.1.3.2
Advertising Mode ............................................................................. 41
15.1.3.3
Connection Mode ............................................................................. 42
15.1.3.4
Extended Sleep Mode ..................................................................... 43
15.2
BLE FCC Measurements .................................................................................................... 44
15.2.1
Maximum Output Power and Antenna Gain (Transmitter) .................................. 45
15.2.1.1
Test Specification ............................................................................ 45
15.2.1.2
Test Setup ....................................................................................... 45
15.2.1.3
Test Results ..................................................................................... 45
15.2.2
Emission Limitations Conducted (Transmitter) .................................................... 47
15.2.2.1
Test Specification ............................................................................ 47
15.2.2.2
Test Setup ....................................................................................... 47
15.2.2.3
Test Results ..................................................................................... 47
15.2.3
Band Edge Emissions Compliance (Transmitter) ................................................ 50
15.2.3.1
Test Specification ............................................................................ 50
15.2.3.2
Test Setup ....................................................................................... 50
15.2.3.3
Test Results ..................................................................................... 50
15.2.4
Emission Limitations Radiated (Transmitter) ....................................................... 52
15.2.4.1
Test Specification ............................................................................ 52
15.2.4.2
Test Setup ....................................................................................... 52
15.2.4.3
Test Results ..................................................................................... 52
Appendix A Application Software Guide: ble_adv_demo ............................................................. 55
Revision History ................................................................................................................................ 59
Figures
Figure 1: PCB of the DA14680/681 Range Extender (224-23-D) ......................................................... 6
Figure 2: Block Diagram of Range Extender (224-23-D) ...................................................................... 8
Figure 3: Range Extender (224-23-D) on a DA1468x Dev.Kit PRO Motherboard ................................ 9
Figure 4: Layout of the Range Extender Daughterboard ...................................................................... 9
Figure 5: DA14680/681 Range Extender Connected to a Communication Interface Board (CIB) ..... 10
Figure 6: SW1 Position for Each Power Scheme ................................................................................ 11
Figure 7: DA14681 Basic System with External QSPI Flash Memory - overview ............................... 13
Figure 8: RF Front End Signal Paths .................................................................................................. 14
Figure 9: SKY66112-11 Control Signal Timing ................................................................................... 15
Figure 10: DCF Signal Programming .................................................................................................. 16
Figure 11: SKY66112-11 Front End Module - overview ...................................................................... 18
Figure 12: SKY66112-11 Gain vs. P
OUT
, LPM2 ................................................................................... 19
Figure 13: Antenna Selection Using P4_0 or a R53 Pull-Down Resistor ............................................ 22
Figure 14: SKY66112-11 Antenna Ports ............................................................................................. 22
Figure 15: ANT1, Printed IFA Antenna and Matching Network (Z4 = 1.8 pF) .................................... 23
Figure 16: Resistive Attenuator Between DA14681 and SKY66112-11 ............................................. 23
Figure 17: Top View of PCBA.............................................................................................................. 28
Figure 18: Bottom View of PCBA ........................................................................................................ 28
Figure 19: Enable FEM Driver in custom_config_qspi.h ..................................................................... 33
Figure 20: Flash Connection to V18P Power Rail in custom_config_qspi.h ....................................... 33
Figure 21: Configure DA14681 Power Output Level at -2 dBm .......................................................... 34
Figure 22: Include hw_rf.h in main.c ................................................................................................... 34