How the On-Chip Noise Monitor works
Our On-Chip Power Supply Noise Monitor has been developed to overcome the characterization challenges of low-power, high-performance interfaces and electronic systems. It is a compact IP block embedded on-chip and works in conjunction with our LabStation™ Validation Platform to enable noise measurements directly on the chip.
This is important because, one of the technical challenges in the development of low-power, high-performance complex IPs and electronic systems is accurately characterizing power supply noise and understanding how that noise affects circuit performance. The conventional approach of hand-probing outside the chip package is slow, error prone, and often misses high-frequency noise that is filtered out by the package. These difficulties only increase with further miniaturization of packaging technology in smartphones and tablets including integrated package-on-package (PoP) and 2.5D/3D packages.
The Noise Monitor accurately captures high-frequency noise components and uses sampled measurements combined with post-processing to measure noise in both the time and frequency domains. It also includes a Noise Generator that provides a controllable noise source that operates over a wide range of frequencies and amplitudes. The generator can be used in conjunction with noise and jitter measurements to extract power distribution network impedance (ZPDN) and power supply noise induced jitter (PSIJ) sensitivity.