Click here for production status of specific part numbers. Evaluates: MAX19777 MAX19777 Evaluation System General Description Features The MAX19777 evaluation system (EVSYS) is a fully 48MHz SPI Interface assembled and tested PCB that evaluates the MAX19777 Window 7, Windows 8 and Windows 10-Compatible 2-channel, 12-bit, SPI-compatible 3Msps analog- Software to-digital converter (ADC). The MAX19777 EVSYS Time Domain, Frequency Domain, and Histogram consist of the MAXPRECADCMB1 and the MAX19777 Plotting in the EV Kit Software evaluation kit (EV kit). The system also includes Window Frequency, RMS, Min, Max, and Average DC 7, Windows 8, and Windows 10 software that provides a Calculations in the EV Kit Software simple graphical user interface (GUI) for exercising the features of the device. The EV kit comes installed with a On-Board Input Buffers MAX19777AZA+ in a package. USB-PC Connection Ordering Information appears at end of data sheet. Proven PCB Layout Fully Assembled and Tested EV System Component List MAX19777 EV Kit Files PART QTY DESCRIPTION FILE DESCRIPTION MAX119777EVKIT 1 Daughter board MAX19777EVKit Installs the EV system files on MAXPRECADCMB1 1 Serial interface master board SetupVx.x.exe your computer MAX19777.EXE Application program SLSUSB.DLL Software library file SLSUSB.INF USB device driver file SLSUSB.SYS USB device driver file SLS USB Driver USB driver installation file Help 100.PDF MAX19777 EV Kit Photo SPI is a trademark of Motorola, Inc. Windows 7, Windows 8, and Windows 10 are registered trademarks of Microsoft Corp. 319-100125 Rev 0 1/18Evaluates: MAX19777 MAX19777 Evaluation System 11) Connect the USB cable from the PC to the EV kit Quick Start board. Follow the instructions on the SLS USB Required Equipment Driver Help 100.PDF file to manually install the USB MAX19777 EV System (USB cable included) driver. Administrator privileges are required to install the USB device driver on Windows. +5.5V, 500mA DC power supply 12) Start the EV kit software by opening its icon in the PC with a spare USB port Windows All Programs menu. The EV kit software Function generator main window appears, as shown in Figure 1. 5V, 200mA DC power supply 13) The main window should display Hardware +5V, 100mA DC power supply Connected at the bottom-left corner Note: In the following sections, software-related items are iden- 14) Check the Remove DC checkbox. tified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and under- 15) Press the Start Conversion button. lined refers to items from the Windows operating system. 16) Verify that the Frequency displayed in the Calculation group box reads approximately 100000Hz. Procedure The EV kit is fully assembled and tested. Follow the steps Detailed Description of Software below to verify board operation. Caution: Do not turn on The main window of the evaluation software the power supply until all connections are completed. (Figure 1) contains a Device Configuration group box, 1) Install the MAX19777EVKitSetupVx.x.exe on your a Datalogging group box, and four tab sheets to display computer the sampled data. 2) Verify that all jumpers are in their default positions, as Device Configuration shown in Table 1. Use the Channel Select drop-down list in the Device 3) Connect the positive terminal of the +5.5V power Configuration group box to select the analog input supply to the VIN connector on the MAXPRECAD- channel for analog-to-digital conversion. CMB1. Connect the negative terminal of the same power supply to the GND connector on the board. Data Logging 4) Connect the MAX19777s 2x8 right angle female In the Datalogging group box, the user can select header (J1) to the MAXPRECADCMB1s 2x8 right the desired number of conversions in the Number of angle male header (H2). Samples drop-down list. Enter the desired sampling rate in the Sample Rate (ksps) edit box. The actual sampling 5) Connect the +5V power supply to the OP+ test points, rate is displayed at the right of the Sample Rate (ksps) -5V power supply to the OP- test point, and ground to edit box. Press the Start Conversion button to start the nearest GND test point. sampling. After sampling is finished, the user can save 6) Connect the +5V power supply to the 5V test point the data to a file by pressing the Save to File button. and the ground to the nearest GND test point. The Save to File button is not active until the sampling 7) Set the signal source to generate a 10kHz, +2.95V is done. peak-to-peak sinusoidal wave. Time Domain, Frequency Domain, 8) Connect the positive terminal of the signal generator Histogram, and Single Conversion Tabs to the U1 AIN1 DC or U1 AIN1 DC SMA connec- After the Start Conversion button in the Datalogging tor. Connect the negative terminal of the signal gen- group box is pressed, the sampled data in the time erator to the GND connector. domain is plotted in the Time Domain tab sheet. The 9) Turn on the power supplies. sampled data in the frequency domain is plotted in the 10) Turn on the function generator. Frequency Domain tab sheet, and the histogram of the sampled signal is plotted in the Histogram tab sheet. Maxim Integrated 2 www.maximintegrated.com