Teledyne SP Devices ADQ14, User Manual

Page: 9 / 29

Classification Revision
Public PA1
Document ID Print date
18-2074 2018-04-06
procedure in detail for the different distributions.
3.1.3 Unsupported Software Features
Listed below are the features supported by ADQ14 which are not supported by ADQ14-FWPD,
• ADCaptureLab
• LabView API
3.2 Collecting Data
The FWPD C example is provided together with the SDK. For Windows it is located in
<Path to installation directory>/C_examples/ADQAPI_FWPD_example
after installing the SDK, and for Linux in the
examples/ADQAPI_FWPD_example
directory of the SDK archive. This example illustrates the capabilities of ADQ7-FWPD, and can be used
as-is. However, the example is primarily intended to be used as a guide for creating applications tailored
to a specific use case.
4 Detailed System Description
This section provides additional details on important system features.
4.1 Digital Baseline Stabilization
For optimal performance in pulse applications, it is advantageous if the baseline of the signal is locked
to a specific value. This is the purpose of the Digital Baseline Stabilizer (DBS). The signal processing
block is placed directly after the ADC in the data path.
The DBS uses a blind identification process operating in the background. When activated by the user,
DBS will constantly monitor and follow variations in the baseline and correct for time-varying behavior
such as temperature variations. The baseline is adjusted to the target value with 22-bit precision.
4.2 Moving Average
The moving average function computes an average of samples earlier in time using a memory with
capacity to store the previous 100 samples. From this data set, the user can select a range of samples
which should be used to compute the moving average value attributed to the current sample. The range
is specified as a window which has a length and an offset from the current sample. Both the length and
the offset may be given in the range from 0 to 100 samples. However, the sum of the two parameters
may not exceed 100 samples.
ADQ14-FWPD – User Guide www.teledyne-spdevices.com Page 8 of 28