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UM-B-074

DA1468x Range Extender Daughterboard

User Manual

Revision 1.1

17-Apr-2018

CFR0012

10 of 60

© 2018 Dialog Semiconductor

provides UART and JTAG (SWD) interfaces to the DA14680/681 as well as power supply. If an
external Li-Poly battery is used to supply the daughterboard, jumper J16 on the CIB must be
removed. For more details on the Communication Interface Board, please refer to user manual UM-
B-065 (Ref.

[4]

).

Figure 5: DA14680/681 Range Extender Connected to a Communication Interface Board (CIB)

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Summary of Contents for DA1468 Series

Page 1: ...document describes the hardware system setup of a range extender daughterboard based on the Dialog DA14680 681 Bluetooth low energy SoC and the Skyworks SKY66112 11 Front End Module Target hardware DA...

Page 2: ...smit TX Path 20 7 1 5 Receive RX Path 21 7 1 6 Filtering Optional 21 7 1 7 Antenna 22 7 1 8 Resistive Attenuator Optional 23 8 Crystals 24 9 QSPI Flash Memory 24 10 TX Output Power Control Circuit 24...

Page 3: ...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 Exten...

Page 4: ...gure 46 Include hw_rf h in main c 56 Figure 47 Set Build Configuration 57 Figure 48 Building Project ble_adv 57 Figure 49 Programming External Flash Using ble_adv bin 58 Tables Table 1 Electrical Char...

Page 5: ...Low Noise Amplifier LPM Low Power Mode LPF Low Pass Filter PA Power Amplifier PCBA Printed Circuit Board Assembled PCB Printed Circuit Board RF Radio Frequency RFCU RF Control Unit RMS Root Mean Squa...

Page 6: ...4681 SoC where enhanced RF transmitted power is presented The DA14680 681 Range Extender daughterboard serves as a reference design to potential customers requesting enhanced BLE RF Output Power up to...

Page 7: ...inted inverted F type antenna Figure 4 uFL connector for external antennas Figure 4 RF connector for conducted measurements Figure 4 BLE Radio transceiver 1 13 5 dBm transmit output power 95 5 dBm rec...

Page 8: ...4 Sky66112 11 TX Power control circuit 3 1V8 1V8P VCC2_PA 1V8P VCC1_PA V33 VDD_PA FEM_VCC2 FEM_VCC2 VCC1_PA VDD_PA VCC2_PA Legend 1 Resistive attenuator application is possible 2 Low pass filter appl...

Page 9: ...iconductor Figure 3 Range Extender 224 23 D on a DA1468x Dev Kit PRO Motherboard Figure 4 Layout of the Range Extender Daughterboard Another option for programming the DA14680 681 Range Extender is to...

Page 10: ...G SWD interfaces to the DA14680 681 as well as power supply If an external Li Poly battery is used to supply the daughterboard jumper J16 on the CIB must be removed For more details on the Communicati...

Page 11: ...described in Table 2 Table 2 Jumper Switch Settings for Power Schemes of DA1468x Dev Kit PRO Motherboard Power Scheme Indication SW1 J9 USB1 USB2 Motherboard LDO VBAT Left 2 3 Power debug Li Poly Batt...

Page 12: ...3 V Voltage range for VBAT1 is 1 7 V to 4 75 V VBAT2 Is the input of the SIMO DC DC converter It is shorted externally with VBAT1 A 1 F decoupling capacitor C8 is required next to the pin 0402 package...

Page 13: ...UM B 074 DA1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 13 of 60 2018 Dialog Semiconductor Figure 7 DA14681 Basic System with External QSPI Flash Memory overview...

Page 14: ...the received signal passes through SKY66112 11 LNA which has a receive gain of 11 dB ANT1 2 4 GHz printed antenna Matching circuit TX amplifier path BLE 2402 2480 MHz CSD CPS CTX CRX CHL ANT_SEL Resis...

Page 15: ...CHL TX Power level 0 TX Low power level 1 TX High power level ANT_SEL Antenna select signal 0 ANT1 1 ANT2 Table 5 Truth Table for SKY66112 11 Mode Description CSD CPS CRX CTX CHL 0 All off sleep mode...

Page 16: ...Control Unit RFCU of DA14680 681 provides the capability of controlling five signals which can be used for controlling the SKY66112 11 The DCFs can be output on any GPIO by using PID numbers 55 to 59...

Page 17: ...egrated inter stage matching and harmonic filter and digital controls compatible with 1 6 V to 3 6 V CMOS levels The RF blocks operate over a wide supply voltage range from 1 2 V to 3 6 V that allows...

Page 18: ...UM B 074 DA1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 18 of 60 2018 Dialog Semiconductor Figure 11 SKY66112 11 Front End Module overview...

Page 19: ...red to 1200 mV using a series resistor R73 16 5 The DA14680 681 TX output power is set to 2 dBm and it is programmed using RF_TX_PWR_REG 0x500020C0 Figure 12 SKY66112 11 Gain vs POUT LPM2 The use of a...

Page 20: ...supplies the second stage of the PA and draws most of the TX current VCC2 is connected to the V18 power rail 6 The VCC2 voltage can be changed using a series resistor R73 The V18 power rail has a cur...

Page 21: ...le 10 Table 10 Default Configuration VCC2 V Input Power dBm Control Signal PA Mode of Operation Output power at ANT1 dBm PA Current Consumption typical mA 1 2 2 CPS 0 CHL 0 Low Power 13 5 50 7 1 5 Rec...

Page 22: ...edance of 50 interconnects the RF port and the RFIN of SKY66112 11 SKY66112 11 FEM provides two antenna outputs controlled by the ANT_SEL pin GPIO P4_0 or it can be hardware configured using a pull do...

Page 23: ...n SMD RF switch J3 in series to the printed IFA antenna The SMD RF switch is used for conducted RF evaluation testing The RF switch type is MM8130 2600 supplied by Murata Verification of the circuit p...

Page 24: ...lue Part Number ABS07 32 768KHZ 7 T Frequency 32 768 kHz Accuracy 20 ppm Load Capacitance CL 7 pF Shunt Capacitance C0 0 9 pF to 1 2 pF Equivalent Series Resistance ESR 70 k Drive Level PD 0 5 W 9 QSP...

Page 25: ...Extender QSPI Flash P0_6 SWDIO SWDIO P0_7 SOFT_TRIG SOFT_TRIG P1_0 ML8511_OUT analog in Not assigned I O is not usable during RF transmission see AN B 061 Ref 6 P1_1 USBN Not assigned P1_2 I2C_SDA I2...

Page 26: ...nual Revision 1 1 17 Apr 2018 CFR0012 26 of 60 2018 Dialog Semiconductor GPIO Name aQFN60 Function Range Extender Function Comments P4_4 GPIO FEM_CHL P4_5 GPIO FEM_CTX P4_6 GPIO FEM_CPS P4_7 GPIO Not...

Page 27: ...QSPI_D1 QSPI_D1 A10 P3_2 External use B8 P0_6 SWDIO PWM5 ADC4 SWDIO JTAG Data Input output Bidirectional data and control communication A7 P3_3 External use A34 P0_7 ADC3 External use A9 P3_4 Externa...

Page 28: ...13 PCB Assembly A 4 layer FR4 PCB with 1 49 mm standard thickness is used The PCB size is 43 mm x 43 mm All available GPIOs are accessible via the two connectors placed on the bottom of the PCB Schem...

Page 29: ...UM B 074 DA1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 29 of 60 2018 Dialog Semiconductor 13 1 DA14681 Range Extender Schematic...

Page 30: ...UM B 074 DA1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 30 of 60 2018 Dialog Semiconductor 13 2 SKY66112 11 Front End Module Schematic...

Page 31: ...6 R41 0 RES 0 0 OHM 1 16W 5 0402 SMD Vishay Dale CRCW04020000Z0ED R1005 R9 R11 R12 R13 R14 R15 R16 56 RES 56 OHM 1 16W 0402 SMD Vishay Dale CRCW040256R0JNED R1005 R10 0 1 RES 0 1 OHM 1 10W 1 0603 SMD...

Page 32: ...T L2012 LP1 LP2 LP3 500 mA_ 470 EMI FB Universal Power Signal Lines 470 OHM 25 0 5A DCr 0 21 OHM 0603 Murata Electronics BLM18EG471SN1D L1608 J1 J2 550910474 B2B Mezzanine Connectors 635 HEADER SURFA...

Page 33: ...in a BLE application project The described software application is ble_external_host With the configuration described in the following steps the ble_external_host is configured with DC DC operation d...

Page 34: ...60 2018 Dialog Semiconductor 3 Configure DA14681 power output to 2 dBm by adding the statement hw_rf_set_tx_power HW_RF_PWR_LUT_m2dbm in function system_init in file main c Figure 21 Configure DA14681...

Page 35: ...evision 1 1 17 Apr 2018 CFR0012 35 of 60 2018 Dialog Semiconductor 5 Select build configuration e g for DA14681 and external Flash it is DA14681 01 release_QSPI Figure 23 Set Build Configuration 6 Bui...

Page 36: ...onductor 7 Before writing the Flash select the DA14680 1 01 product id configuration using the program_qspi_config_win script Figure 25 Configuration of correct product id DA14680 1 01 8 Use the produ...

Page 37: ...Tools SmartSnippets Toolbox v4 3 3 1378 SmartSnippets Studio v1 3 2 636 SDK RF Tools Command Line Interface Application Test Procedure The board is set to continuous modulated transmission mode for s...

Page 38: ...witch connector MM8130 2600 by Murata and at the other end through an attenuator to the R S CBT Bluetooth Tester In order to evaluate the RF sensitivity ble_external_host firmware was used The results...

Page 39: ...M B 074 DA1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 39 of 60 2018 Dialog Semiconductor Figure 27 RX Sensitivity Dirty Transmitter Payload 255 VCC2 1 2 V PIN 2 dBm...

Page 40: ...er was measured by using the R S CBT Bluetooth Tester An RF cable assembly was connected to J3 RF Switch connector MM8130 2600 by Murata and at the other end through an attenuator to the R S CBT Bluet...

Page 41: ...r Analyzer The current profiles were evaluated using advertising demo firmware with embedded PA control During this test the Advertising Connection and Extended Sleep modes were evaluated 15 1 3 2 Adv...

Page 42: ...For this measurement the DUT was supplied by 3 V FW was downloaded and the JTAG programmer was disconnected and connection with an iPhone 4S was established Table 21 Typical Peak Current during Conne...

Page 43: ...15 1 3 4 Extended Sleep Mode For this measurement the DUT was supplied by 3 V FW was downloaded and the JTAG programmer was disconnected Table 22 Typical Average Current in Extended Sleep Mode Note 1...

Page 44: ...orming Compliance Measurements on Digital Transmission Systems DTS operating under 15 247 Measurements Maximum output power section 15 2 1 Emission limitations conducted harmonic level section 15 2 2...

Page 45: ...sing the following command ble_txstream FREQUENCY_MHz POWER PAYLOAD_TYPE An RF cable was connected to the J3 RF Switch connector MM8130 2600 by Murata and at the other end to the spectrum analyzer Thr...

Page 46: ...anual Revision 1 1 17 Apr 2018 CFR0012 46 of 60 2018 Dialog Semiconductor Figure 33 Maximum Output Power CH19 VCC2 1 2 V Figure 34 Maximum Output Power CH39 VCC2 1 2 V Verdict All measurements comply...

Page 47: ...e boards under test were set into continuous wave modulation transmit mode using the following command ble_txstream FREQUENCY_MHz POWER PAYLOAD_TYPE An RF cable assembly was connected to J3 RF Switch...

Page 48: ...1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 48 of 60 2018 Dialog Semiconductor Figure 35 Harmonics Level Lowest Frequency CH00 Figure 36 Harmonics Level Middle Freq...

Page 49: ...er Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 49 of 60 2018 Dialog Semiconductor Figure 37 Harmonics Level Highest Frequency CH39 Verdict All measurements comply with the limits specif...

Page 50: ...transmitter complies with the conducted power limits based on the RMS averaging over a time interval the attenuation required shall be 30 dB instead of 20 dB 15 2 3 2 Test Setup The DA14680 681 range...

Page 51: ...ge Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 51 of 60 2018 Dialog Semiconductor Figure 39 Upper Band Edge CH39 Verdict All measurements comply with the limits specified in FC...

Page 52: ...the radiated test These results may differ from the radiated ones Only the emissions for the frequency range of 2 31 GHz to 2 39 GHz Restricted Band A and 2483 5 GHz to 2 5 GHz Restricted Band B were...

Page 53: ...66 14 34 RF_TX_PWR_REG 2 2 dBm VCC2 1200 mV CHL 0 2440 45 33 56 92 21 2 41 2 24 13 15 72 RF_TX_PWR_REG 2 2 dBm VCC2 1200 mV CHL 0 2480 45 61 56 98 21 2 41 2 24 41 15 78 RF_TX_PWR_REG 2 2 dBm VCC2 120...

Page 54: ...UM B 074 DA1468x Range Extender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 54 of 60 2018 Dialog Semiconductor Figure 42 Emissions in Restricted Band RB 2 4835 GHz to 2 5 GHz CH39...

Page 55: ...escribed software application is ble_adv With the configuration described in the following steps the ble_adv is configured with DC DC operation default settings when the radio is active and a programm...

Page 56: ...2018 Dialog Semiconductor 3 Configure the DA14681 power output to 2 dBm by adding the statement hw_rf_set_tx_power HW_RF_PWR_LUT_m2dbm in function system_init in file main c Figure 45 Configure DA146...

Page 57: ...ual Revision 1 1 17 Apr 2018 CFR0012 57 of 60 2018 Dialog Semiconductor 5 Select build configuration e g for DA14681 and external Flash it is DA14681 01 release_QSPI Figure 47 Set Build Configuration...

Page 58: ...xtender Daughterboard User Manual Revision 1 1 17 Apr 2018 CFR0012 58 of 60 2018 Dialog Semiconductor 7 Use the produced binary output file for Flash memory programming Figure 49 Programming External...

Page 59: ...59 of 60 2018 Dialog Semiconductor Revision History Revision Date Description 1 0 09 Nov 2016 Initial version 1 1 17 Apr 2018 Updated instructions on software guide based on SDK 1 0 12 1078 Chapter 14...

Page 60: ...e responsibility of the customer and Dialog Semiconductor excludes all liability in this respect Customer notes that nothing in this document may be construed as a license for customer to use the Dial...

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