CoolFlux DSP is a 24-bit audio DSP core developed with years of experience in Ultra Low Power Design at NXP's ultra low power design group in Leuven. Later on NXP completed new cores in the CoolFlux DSP family optimized for Baseband Signal Processing such as for Software Defined Radio: the CoolFlux BSP and the 32-bit CoolFlux BSP32. Also smaller 16-bit cores have been added: CoolFlux DSP16L and CoolFlux DSP16 for speech and intelligent sensor signal processing.