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MAX5X02EVKIT Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX5X02EVKIT Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 16 page Maxim Integrated │ 6 MAX5X02 Evaluation Kit Evaluates: MAX5700/MAX5701/MAX5702A/B/ MAX5800/MAX5801/MAX5802A/B www.maximintegrated.com Detailed Description of Software The MAX5X02 EV kit software can evaluate all I2C and SPI interface family of devices. In addition to the interfaces, the software allows 12-/10-/8-bit DAC part selection. The main software window has two tabs, DACs and Controls. Within the DACs tab, the user can send a sequence of write commands to the two DACs, assert CLR, and load and save the write sequence. The Controls tab (Figure 3) allows the user to change the power, configuration, and reference. Part Selection Ontheupperleftcornerisa Part Selection group box. The user must select the appropriate radio button that corresponds to the installed Maxim IC DAC resolution (number of bits). Interface The Interface group box allows the user to toggle between I2C and SPI DAC parts. By default, the software is configured to communicate using the SPI interface first. Oncethe I2C radio button selection is made, the software automatically detects the correct I2C address from the drop-down list and the user is allowed to communicate using the I2C interface. See Table 2 for a list of the I2C addresses. DAC Commands Enter the desired Data on the left and choose the appro- priate Command from the drop-down list. Pressing the Execute button writes to the CODE and/or DAC regis- ters and the Script Status changes from Incomplete to Complete. Refer to the MAX5700/MAX5701/MAX5702 and MAX5800/MAX5801/MAX5802 IC data sheets for a list of possible commands. If a sequence of com- mands need to be performed, adjust all Data edit boxes and Commands drop-down lists accordingly, and press the Execute All button. To reset the Script Status to Incomplete, press the Reset Script button. Data Logging Using the Save To File button, the sequence of the commands can be saved into a text file. To recall the sequence, press the Load From File button and select the appropriate text file. DAC Outputs (I2C Only) Press the Read BackbuttonandtheCODEandvoltages of the DACs are displayed within the DAC Outputs group box. Asynchronous CLR A checked CLR checkbox drives the CLR pin of the MAX5702 or MAX5802 low, which allows the changes to the CODE register to change the DAC outputs. Unchecking the CLR Asserted checkbox drives the CLR pin of the MAX5702 or MAX5802 high. To change the DACoutputs,theusermustwritetotheCODEregisters, and then write to the DAC registers. Power The power command is selectable for individual DACs. When a DAC is selected, the channel is active. Other options include powering down with 1kΩ termination to GND, 100kΩ termination to GND, and high imped- ance.Oncetheappropriateselectionismade,pressthe Execute button. A Read Back button is available for the I2C interface. |
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