QF1DA512-DK Quickfilter Technologies LLC, QF1DA512-DK Datasheet - Page 11

• Manufacturer Part Number: QF1DA512-DK
• Description: KIT DEV FOR QF1DA512
• Manufacturer: Quickfilter Technologies LLC
• Series: SavFIRe™r

Specifications of QF1DA512-DK

• Main Purpose: Filters, Digital Filter Design
• Embedded: Yes, ASIC
• Utilized Ic / Part: QF1Da512
• Primary Attributes: 1 512 Tap FIR Filter, 12 ~ 24 Bit
• Secondary Attributes: Quickfilter Software Design Tool GUI, Works from 10 ~ 500ksps ADC Data Rates
• For Use With: WM2582 - EVALDI EARBUDS TYPE Y686-1006 - BOARD MSP-MOJO + EXPANSION HEADR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 686-1010

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Device Configuration
Before useful data can be output from the QF1Da512 it must first be correctly configured. Configuration parameters include the
following:
Quickfilter Audio Development Kit (QF1Da512-DK)
The Audio Development Kit is a development and evaluation platform for a stereo audio application utilizing two serial QF1Da512s.
The QF1Da512-DK works in conjunction with the QF1D512-DK. The QF1D512-DK provides the interface to the Quickfilter Pro™
development software and hosts the QF1Da512 Audio Development Kit. Once programmed, the QF1Da512-DK can operate
independent of the host.
The Quickfilter Pro™ Design Software allows all the necessary parameters to be generated in a quick and user-friendly manner. The
user enters the desired characteristics (e.g. sampling rates, type of filter, cut-off frequencies etc.) for each channel and the software
generates a configuration file for the devices. The configuration file can be immediately downloaded into the QF1Da512 on the
evaluation platform, and the actual hardware device performance can be evaluated - in response to a user-applied signal source and
sink. Device configuration parameters can be further adjusted, if necessary, until the optimum system performance is reached. Once
the user is satisfied with the performance the Qf1Da512 configuration file can be saved for future use, for example to program devices
in bulk prior to volume board manufacturing.
Quickfilter Host Development Kit (QF1D512-DK)
The Development Kit is a complete hardware and software combination which allows for rapid development of the QF1Da512
configuration parameters for a specific application.
The Quickfilter Design Software tool allows all the necessary parameters to be generated in a quick and user-friendly manner. The user
enters the desired characteristics (e.g. sampling rates, type of filter, cut-off frequencies etc.) for each channel and the software
generates a configuration file for the device. The configuration file can be immediately downloaded into the QF1Da512 on the
QF1Da512-DK development board, and the actual filter performance can be monitored - either in response to a PC-generated noise
source or to a user-applied signal. Device configuration parameters can be further adjusted, if necessary, until the optimum filter
performance is reached.
Once the user is satisfied with the performance the QF1Da512 configuration file can be saved for future use, for example to program
the QF1Da512-DK. The QF1Da512-DK can support 2 stereo configurations for comparisons.
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There are two modes of bus operation for the QF1Da512, “configure” mode, and “data” mode. The required mode is selected by writing
the FILT_EN bit in the CONTROL register (03h).
and the coefficient RAM. To configure the device, set both the FILT_EN and DIN_PT bits to 0 (see Section 6.3).
possible to write the control registers. To process data with the device, set the FILT_EN bit high (see DATA INTERFACE). The format
of the dSDO will match the format of the data coming into the dSDI pin.
Note: The Control registers can be written to and read from in either mode. However, to write the coefficients, the QF1Da512
must be in “configure” mode.
Rev A8 January 7, 2009
“Configure” mode is used to set up or change options in the QF1Da512. In this mode it is possible to read/write the control registers
“Data” Mode is used to interface with a data source (i.e, ADC, uP, DSP, digital data stream…) and run the FIR filter. In this mode it is
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SOFTWARE
GENERAL OPERATION
Data mode of operation: I2S, SPI Normal, SPI Continuous, or Synchronous Serial mode
Data interface configuration: includes header information, use and size, and data size
Decimation and averaging configuration (if utilized)
FIR filter coefficients.
Gain and Compression (if utilized).
PRELIMINARY DATA SHEET
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QF1Da512