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PRELIMINARY
QF4A512-DK
Development Kit
Hardware
The development board interfaces to a host PC via a USB connection. This connection supplies power to the board, although there is
also provision to supply power from an external 5 – 9V source. A bridge circuit on the board converts from the native SPI interface of
the QF4A512 to USB. A header is provided to allow connection to the QF4A512 via SPI from a host CPU.
BNC connectors on the board allow connection of analog input signals to all 4 channels. The board is preconfigured for single-ended,
ac coupled operation with signals of approximately 1V peak-to-peak. This configuration can be easily modified for any combination of
single-ended, differential, ac- or dc-coupled, and varying input signal levels (see schematics). An adjacent prototyping area allows for
further input configuration modifications, for example for providing bias voltages for sensors such as accelerometers.
Analog input
BNC connectors
Prototyping area
External SPI header
SPI-USB Bridge
(underside)
FPGA Download
LED (red)
USB
connector
Reset LED
(red)
Upload LED
(yellow)
Download LED
(green)
External
Power
QF4A512
Power LED
Reset button
(blue)
Software
There are three main software functions provided by the included Quickfilter software:
1. Filter design. A variety of different filter types can be designed and simulated, including lowpass, notched lowpass, highpass,
bandpass, dual bandpass, bandstop, and dual bandstop. Currently available filter algorithms include Parks-McLellan and
Windows Sinc. Desired frequencies, slope and attenuation can be input and the theoretical results observed. Completed
designs can be saved as filter files for future use.
2. Chip configuration. Various filter types can be assigned to the 4 channels available in the QF4A512, along with key device
configuration parameters. When complete, the configuration is downloaded to the device on the development board. It is also
possible to interrogate the various on-chip control registers and save configurations for future use.
3. Evaluation. Once the QF4A512 has been configured, analog signals can be introduced to the device inputs and the software
will produce and display an FFT of the filter response. A white noise source file is provided as a convenient method to drive the
input from a PC and observe the filter characteristics.
Development Kit Contents
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Development Board
CD containing Quickfilter software, documentation and install files.
USB cable (board to PC)
Signal cable (BNC to 3.5mm phone plug)
Quickstart Guide
Contact and Ordering Information:
Quickfilter Technologies, Inc.
1024 South Greenville Avenue, Suite 100
Allen, TX 75002
Email: sales@quickfilter.net
Phone: 214-547-0460
? 2006 Quickfilter Technologies, Inc. All rights reserved. Quickfilter, the Quickfilter logo and combinations thereof, are trademarks of Quickfilter Technologies, Inc. Other product names used in
this publication are for identification purposes only and may be trademarks of their respective companies. Windows is a registered trademark of Microsoft Corp.
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相关PDF资料
QF4A512-PA
ADAPTER PROG FOR QF4A512-DK
QLB-033-00DNN-3BA
CIRCUIT BREAKER THERM SNAP-IN 3A
QLB-033-11B3N-3BA
CIRCUIT BREAKER THERM PANEL 3A
QLB-053-00DNN-3BA
CIRCUIT BREAKER THERM SNAP-IN 5A
QLB-053-11B3N-3BA
CIRCUIT BREAKER THERM PANEL 5A
QLB-073-00DNN-3BA
CIRCUIT BREAKER THERM SNAP-IN 7A
QLB-073-11B3N-3BA
CIRCUIT BREAKER THERM PANEL 7A
QLB-103-00DNN-3BA
CIRC BREAKER THERM SNAP-IN 10A
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