поискавой системы для электроныых деталей |
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AD5686R датащи(PDF) 5 Page - Analog Devices |
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AD5686R датащи(HTML) 5 Page - Analog Devices |
5 / 12 page Evaluation Board User Guide UG-459 Rev. 0 | Page 5 of 12 Figure 4. AD568x(R) Evaluation Board Software Main Window SOFTWARE OPERATION The software for the AD568x(R) allows the user to program values to the input and DAC registers of each DAC individually or collectively. Write to Input Register Select Write to Input Register to load the value in the input data control to the input register of any DACs selected in the Select DACs to Use box. Write to DAC Register Select Write to DAC Register to load the value in the input data control to the DAC register of any DACs selected in the Select DACs to Use box. The DAC outputs are automatically updated with the appropriated voltage. Update DAC Register from Input Register Select Update DAC Register from Input Register to copy the value in a DAC input register to the corresponding DAC register. DAC outputs are automatically updated with the appropriated voltage. LDAC CONTROL Select Pulse LDAC to bring the LDAC pin low and then back high. Do this copies the data from the input registers to the DAC registers, and the outputs update accordingly. Any DAC updates disabled by the LDAC mask settings are ignored. The LDAC pin can also be set high or low by clicking the appropriate radio button. GAIN Control The logic level of the GAIN pin is set externally by LK4 or LK5. To display the correct voltage, the gain selection must be set to match the level of the pin. Reference Control The AD5686R and AD5684R have an on-chip reference that can be disabled to reduce power consumption. The AD5686R and AD5684R software has a control that allows this function to be used. The AD5686 and AD5684 require an external reference. The software for the AD5686 and AD5684 has a control that allows the user to set the reference voltage. Power-Down Control Each of the DACs can be powered down individually. Each of the DACs has an associated selection box allowing the part to operate in normal mode, powered down with either a 1 kΩ or a 100 kΩ resistor to ground or tristate. When the power-down setting for each DAC are selected, click Write to Part to write the appropriate values to the AD568x(R). LDAC Mask Register Each of the DACs can be set to accept or ignore LDAC pulses. When the LDAC selections are completed, click Write to Part to write the appropriate values to the AD568x(R). SPI COMMAND On both control tabs of the software, the SPI commands sent to the DAC display. This shows what must be written to the AD568x(R) to replicate the function of the evaluation board. |
Аналогичный номер детали - AD5686R |
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Аналогичное описание - AD5686R |
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