This document describes how to switch to and program the unisersal serial bus (USB)

analog phase-locked loop (APLL) on the C5506/C5507/C5509A devices. Example

assembly programs for programming and switching to and from the APLL are also

provided in the attached zip file. It is assumed that the reader is familiar with the use

and operation of the C5506/C5507/C5509A USB digital phase-locked loop (DPLL) and

C55x™ Digital Signal Processor (DSP) IDLE procedures.-This document describes how to switch to and program the unisersal serial bus (USB) analog phase-locked loop (APLL) on the C5506/C5507/C5509A devices. Exampleassembly programs for programming and switching to and from the APLL are alsoprovided in the attached zip file. It is assumed that the reader is familiar with the useand operation of the C5506/C5507/C5509A USB digital phase-locked loop (DPLL) andC55x