Classification
Revision
Public
PA6
Document Number
Date
17-1957
2018-06-07
•
Configurable FIR filter
A configurable linear phase FIR filter of order 16 is available and may be used for noise reduction
and bandwidth control. The function is described in detail in Section
4.2
.
•
Sample skip
The full-rate data stream may be downsampled by activating the sample skip functionality. This
function is usd to increase the measurement time, e.g. specifying a
sample skip factor
of two
translates to a doubling of the maximum observable time (now at 400
µ
s). Refer to Section
4.3
for
additional details.
•
Advanced threshold function
The data may be subjected to an advanced thresholding function, isolating weak events and ef-
fectively increasing the dynamic range of the system.
•
WFA (firmware/software)
The waveform accumulator resides partly in firmware and partly in software (inside the ADQAPI).
This structure offers flexibility and capabilities beyond what could be achieved by using the accu-
mulators separately.
Configurable
FIR filter
Sample skip
WFA
(Firmware)
Advanced
threshold function
WFA
(Software)
Physical interface
ADC
Figure 1: A block diagram presenting the main features of the ADQ7-FWATD data path.
3
Getting Started
This section provides information on how to interface with ADQ7 and the ATD firmware. Table
3
describes
the peripherals and their usage. Note that only the INX input should be used when the ADQ7 is running
in the 1-channel mode.
Table 3: Peripheral connections on ADQ7.
Connector
Description
TRIG
External trigger input / output
SYNC
Sync trigger input / output
ADQ7-FWATD User Guide
www.teledyne-spdevices.com
Page 5 of 26
