Description Of Analysis Window; Waveform Tab - Analog Devices EVAL-AD7606C18FMCZ User Manual

UG-1870

DESCRIPTION OF ANALYSIS WINDOW

Click Proceed to Analysis in the AD7606C-18 chip view
window (see Figure 12) to open the AD7606C-18 Analysis
view window shown in Figure 15. The analysis view window
contains the Waveform tab, Histogram tab, and FFT tab.

WAVEFORM TAB

The Waveform tab displays data in the form of time vs. discrete
data values with the results, as shown in Figure 16.
CAPTURE Pane
The CAPTURE pane contains the capture settings, which
reflect onto the registers automatically before data capture.
The Sample Count pulldown menu in the General Capture
Settings section allows the user to select the number of samples
per channel per capture (see Figure 16).
The user can enter the input sample frequency in kSPS in the
Throughput (kSPS) box in the General Capture Settings
section (see Figure 16). Refer to the
determine the maximum sampling frequency for the selected
oversampling ratio and data interface mode.
The Mode pulldown menu in the Device Configuration
section can be set as either Hardware, meaning that the device
is configured through digital input pins, or Software, which
allows reading and writing of the memory map and enables a
wider range of features (see Figure 16). Refer to the AD7606C-
18 data sheet to determine the benefits of hardware and
software mode.
The Parallel/Serial Capture pulldown menu in the Device
Configuration section allows the user to select the data
interface as either Parallel or Serial (see Figure 16). If Serial is
selected, the number of data lines can be selected through the
DOUT Configuration pulldown menu.
EVAL-AD7606C18FMCZ
Figure 15. AD7606C-18 Analysis View Window
AD7606C-18 data sheet to
Rev. 0 | Page 12 of 15
Evaluation Board User Guide
The Oversampling Ratio (Software) pulldown menu in the
Device Configuration section can be set between 2 and 64 (in
hardware mode) or 256 (in software mode) and provides improved
signal-to-noise ratio (SNR) performance (see Figure 16). Refer
to the AD7606C-18 data sheet to determine the maximum
oversampling ratio for the selected oversampling mode.
When hardware mode is enabled, the Input Range pulldown
menu allows the user to select an input span between ±10 V
and ±5 V. In software mode, the input span is selected either in
the AD7606C-18 Memory Map or a configurable pop-up
window in the AD7606C-18 chip view window, as shown in
Figure 13.
The Toggle Reset Pin button in the Device Configuration
section issues a full reset to the AD7606C-18 (see Figure 16).
Refer to the AD7606C-18 data sheet for the different reset
options available on the AD7606C-18.
Click Run Once to start a data capture of the samples at the
sample rate specified in the Throughput (kSPS) pulldown
menu for the number of samples specified in the Sample Count
pulldown menu (see Figure 16). These samples are stored on
the FPGA device and are only transferred to the PC when the
sample frame is complete.
Click Run Continuously to start a data capture that gathers
samples continuously with one batch of data at a time
(see Figure 16). This operation runs the Run Once operation
continuously.
RESULTS Pane
The Display Channels section allows the user to select the
channels to capture (see Figure 16). The channel data is shown
only if that channel is selected before the capture.