Clock Jitter Attenuators, Jitter Cleaners

Renesas jitter attenuators combine low-jitter external reference and advanced control circuitry to eliminate unwanted noise from one or more input clock signals. Depending on the product, these devices use either VCXOs or simple crystals as the reference. Innovative techniques enable the use of fixed-frequency crystals instead of hard-to-find pullable crystal devices. Our jitter attenuators feature a frequency translation stage, allowing different input and output frequencies. Input-output frequency ratio can be either integer or non-integer, depending on the selected device. Some models support multiple ratios to generate independent frequencies or non-integer relationships between outputs.

These devices simplify circuit design and reduce the bill of materials (BOM) by integrating jitter attenuation and frequency translation. Our comprehensive portfolio of jitter attenuators and frequency translators delivers varying levels of performance, power, and programmability to meet the demands of virtually any application. The products in our portfolio support a range of single-ended and differential signaling levels, including LVCMOS, LVPECL, LVDS, HCSL, HSTL, and SSTL.