An introduction to Renesas’ Femtoclock®2 jitter cleaners featuring best-in-class jitter at 75fsRMS. FemtoClock2 enables customers to easily meet next-generation PAM4 requirements on new switch or router designs. With a 4x4 mm2 form factor, the FemtoClock2 family is less than one third the size of similar solutions on the market. This allows designers to place the clock source at the point of use – very close to the device receiving the clock signal – for streamlined PCB layout design, reduced cross talk, and cleaner signals. Flexibility makes the family useful in many applications. FemtoClock2 can be configured as a DCO, clock generator, or jitter attenuator, offering valuable design flexibility and reuse.