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7.3
ADS8339EVM Plug-In Operation
Figure 11
shows the device-configuration tab of the ADS8339EVM plug-in that is used to change
acquisition parameters, such as sample rate and voltage reference.
The device-configuration tab contains the following controls:
1. Data Rate: By default, the data rate is at 250-KSPS. This control shows the data rate or sampling
frequency used by the ADC to acquire data. With SCLK frequency at 25-MHz, set data rate to a value
from 6.105-KSPS to 250-KSPS. With SCLK frequency at 400 KHz, set the data rate to a value from
3.960-kSPS to 21.052-kSPS.
2. SCLK: By default, SCLK is at 25-MHz. SCLK sets the clock frequency used by the SPI interface to
capture data. Note that reducing SCLK frequency also reduces the maximum data rate.
3. Reference: 4.5 V is the default reference value, and matches the onboard reference of the EVM. To
read accurate voltages, set the value of this control to be the exact value of the reference.
4. Device: ADS8339 is the only device available for this plug-in.
5. About this plug-in: This control shows the plug-in version, MMB0 firmware version, assembly date,
and board revision information.
6. Collecting: This feature shows the percentage of data collected during an acquisition session.
SBAU233A – October 2014 – Revised November 2015
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Figure 11. ADS8339EVM Plug-In: Device-Configuration Tab
Copyright © 2014–2015, Texas Instruments Incorporated
PDK Kit Operation
13
ADS8339EVM-PDK
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