The new QF1D512 simple and versatile FIR engine (SavFIRe) precision digital filter enables system designers to quickly and easily add precision digital filtering to an application. The chip can be easily added between an existing ADC and the host controller (microcontroller, microprocessor, digital signal processor, or field programmable gate array), or it can be connected as a coprocessor device for controllers with embedded ADCs. Whereas the previously introduced four-channel QF4A512 implements a complete analog interface, the QF1D512 offers a simple upgrade path for existing systems.

The companion development kit (QF1D512-DK) allows the device to be configured to work with almost any ADC up to 24 bits, and a variety of precision filters can be quickly designed without the need to write code. The development kit includes the latest version of the Quickfilter Pro software. Developed specifically for the QF1D512, this software version uses the same filter design engine as earlier versions and adds a more intuitive user interface for configuring the chip itself. The development hardware allows this configuration to be downloaded into the chip to verify filter performance. The board features an on-board ADC to allow operation “out of the box.” It also provides the option for users to add their own preferred ADCs to match their end application. This type of flexibility is further extended to allow the development board to be connected to the user’s own host microcontroller, thereby allowing system development to proceed without the need for custom hardware.

The QF1D512 is packaged in a 3 mm × 3 mm QFN package and is characterized over the industrial temperature range. It’s priced at $2.98 in 1,000-piece quantities.

Quickfilter Technologies, Inc.
www.quickfiltertech.com