EVAL-ADL5902-ARDZ

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EVAL-ADL5902-ARDZ  −Table of Contents           EVAL-ADL5902-ARDZ Shield Specifications o Functional Block Diagram Setting Up the Hardware o Power Options Jumper Setting  Option 1: 5V of ADICUP3029 or Linduino Uno  Option 2: 6V DC supply  Option 3: 6V Wall wart Typical Hardware Setup for measurement Software GUI for ADICUP3029 o Software Installation o Software Operation  Connection Window  Measurement Window  Calibration Window Note on Calibration Development on ADICUP3029 o C Development Guide  Installations  Setting Up CrossCore Embedded Studio  Development on CrossCore Embedded Studio o Python Development Guide  Installations  Setting Up PyCharm  Development on PyCharm Software GUI for Linduino o Software Installation o Software Operation o Development on Linduino Hardware Reference Information The EVAL-ADL5902-ARDZ shield illustrates the functionality of the ADL5902, a 50 MHz to 9 GHz 65 dB TruPwr™ RMS responding RF power detector. The voltage outputs of the ADL5902 are routed to the ANALOG IN connector of the Arduino base board. This allows the RF power detector’s output voltage to be easily digitized and processed by the Arduino base board’s integrated sixchannel ADC. The output of the ADL5902’s on-board temperature sensor is also routed to one of the ANALOG IN pins. The power supply for the board comes from the Arduino base board through the POWER connector (5V). So there is no need to connect an external power supply. The EVAL-ADL5902-ARDZ is compatible with EVAL-ADICUP3029 and Linduino. For both platforms, PC software GUI applications (ADICUP3029, Linduino) are available using which, the user can make RF power measurements and also calibrate the device to decrease measurement error. Device drivers for ADICUP3029 and for Linduino Uno are also available, which the user may use to develop their own code for RF measurement, device calibration, and more. Shield Specifications           Supply: 1. 5V Internal (short pin1 and pin2 of P4) – via microcontroller 2. For operation without Arduino base board: 1. 6V External supply (short pin1 and pin2 of P2; short pin2 and pin3 of P4) 2. 6V Wall wart supply (short pin2 and pin3 of P2; short pin2 and pin3 of P4) Operates below 100mA Input Signal Maximum Power: 21dBm Input Dynamic Range: 65dB Linear only on approximately: -62dBm to 3dBm Input Frequency Range: 50MHz to 9GHz Input signal characteristic: Carrier (AC coupled), large crest factors (GSM, CDMA, W-CDMA, TD-SCDMA, WiMAX, and LTE modulated signals) Employs 3-point calibration Voltage Output Range: 1. at VOUT: ~0.175V to ~2.45V 2. at VTEMP: 1.1V to 1.8V   Functional Block Diagram Setting Up the Hardware  Power Options Jumper Setting Power up the EVAL-ADL5902-ARDZ using any of the options by shorting the correct pins using the provided shorting jumper caps. Option 1: 5V of ADICUP3029 or Linduino Uno  1. Connect pin1 and pin2 of pin header P4. 2. Mount EVAL-ADL5902-ARDZ to ADICUP3029 or Linduino Uno. This works regardless of the connections on pin header P2 Option 2: 6V DC supply  1. Connect pin2 and pin3 of pin header P4 2. Connect pin1 and pin2 of pin header P2 3. Connect 6V to the EVAL-ADL5902-ARDZ via the Screw terminal block EVAL-ADL5902-ARDZ is already functional using this option, even without ADICUP3029 or Linduino Uno Option 3: 6V Wall wart  1. Connect pin2 and pin3 of pin header P4 2. Connect pin2 and pin3 of pin header P2 3. Connect 6V wall wart to the EVAL-ADL5902-ARDZ via the DC Jack EVAL-ADL5902-ARDZ is already functional using this option, even without ADICUP3029 or Linduino Uno Typical Hardware Setup for measurement  Software GUI for ADICUP3029  Software Installation 1. 2. 3. 4. Download the Software GUI file here. Extract the Software GUI file to your computer. Connect the EVAL-ADICUP3029 board using micro USB cable Set the S2 switch to USB. 5. In the extracted files look for power_detector-firmware.hex then copy the hex file to Computer»DAPLINKdrive After loading the hex file to the DAPLINK drive the window explorer must automatically close or else you need to load the hex file to the drive again. 6. After the windows explorer automatically closes, reset the Eval-ADICUP3029 board by pressing the S1 (reset) button on the board. 7. Go to extracted files and look for power_detector.exe file and double click to run the software. The Connection Window will open.   Software Operation Connection Window 1. Mount EVAL-ADL5902-ARDZ to the ADICUP3029 and connect ADICUP3029 to computer as in Typical Hardware Setup for Measurement 2. Click the refresh button on Port Name to Identify the port where an ADICUP3029 is installed If there are many ADICUP3029 installed, select the port where ADICUP3029 and EVALADL5902-ARDZ connected 3. Set Baudrate to 115200 4. Select Auto-detect on Shield type. 5. Click Connect. The Measurement Window should Open. Console Log must indicate “ADL5902 shield detected with ADiCUP” Measurement Window  The shield makes RF power measurements based on a 3-point calibrated linear response characterized by input RF frequency and power. By using default calibration coefficients, the 3point linear response corresponds to the datasheet specifications of ADL5902. By using the user calibration coefficients, the 3-point linear response corresponds to the calibration made by the user. The user calibration coefficients and default calibration coefficients are INITIALLY the same. Therefore any unchanged calibration at specific frequencies in the user calibration coefficients retains the default values Related topic: Calibration of EVAL-ADL5902-ARDZ To select Calibration Coefficients:    Check the box to use default calibration coefficients Uncheck to use user calibration coefficients To make single measurement:  1. Enter the frequency of the input RF signal 2. Uncheck Continuous Measurement 3. Click Measure Button Not entering the correct frequency may result to less accurate measurements. To continuously make measurements:  1. 2. 3. 4. Enter the frequency of the input RF signal Check Continuous Measurement Click Measure Button Click Stop to stop measuring at the last measurement Not entering the correct frequency may result to less accurate measurements. To switch windows:  Click “Connection” or “Calibration” to switch to respective window. Calibration Window To calibrate at a specific frequency, to the following steps  1. Select the frequency 2. Input an RF signal of 0dBm power and of the selected frequency. Click the Measure Button across 0dBm. 3. Input an RF signal of -45dBm power and of the selected frequency. Click the Measure Button across -45dBm. 4. Input an RF signal of -60dBm power and of the selected frequency. Click the Measure Button across -60dBm. 5. Click Calibrate button. Console Log will indicate “User calibration coefficient for (frequency used) is updated.” Follow steps strictly. User calibration coefficients will not update if the Calibrate Button is not clicked. If making measurements or calibration at a frequency not on the list, calibrate on the immediate higher frequency available and on the immediate lower frequency available. If desired frequency is higher/lower than the available frequency selection, calibrate only on the highest/lowest frequency selection Note on Calibration  Calibration can be implemented using 2, 3, or 4-point calibration techniques which can be used to approximate nearly linear response characteristics such as in ADL5902. A typical characteristic of the ADL5902 at 2.14GHz input is shown in Figure 1. This is Figure 50 from the ADL5902 datasheet. Figure 1. ADL5902 Characteristic Response at 2.14GHz Two-point calibration creates an approximated response characteristic utilizing two points on the typical characteristic line. By choosing two points, (VOUT1,INPUT1) and (VOUT2,INPUT2), from the typical response characteristic, a line using two point form equation can be obtained and is given by: SLOPE1 = (VOUT1 – VOUT2)/(INPUT1 − INPUT2)  This derives SLOPE1From this equation, the point intercept form of the approximated response characteristic is given by: INTERCEPT1= VOUT1/(SLOPE1 × INPUT1)**  This derives the INTERCEPT1. Given the SLOPE1 and INTERCEPT1, any point (INPUT,VOUT) along the approximated line is defined in the equation: VOUT = SLOPE1 × (INPUT − INTERCEPT1)**  The range of INPUT is the device's dynamic range. SLOPE1 is in mV/dB and INTERCEPT1 is in dBm. To implement three-point calibration, suppose three points on the typical response characteristic, (INPUT1,VOUT1),(INPUT2,VOUT2), and (INPUT3,VOUT3), such that INPUT1