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Texas instruments makes the TMS320 series DSP. The link below should be entered all on one line in your browser (replace the *'s with t's), and you will see a list of all the DSP's in the TMS320 family.
Click on the underlined device name of the DSP in the TMS320 family that you are interested in, and you will be able to access data sheets and application notes for that DSP that will have sample schematics.