Parade Introduces PS8778 USB4/TBT4 Linear Redriver

Parade Technologies, Ltd. announces the availability of the PS8778 USB4 Gen 3 x2 / TBT4 / DP 2.1 Alt Mode linear redriver for NB/PC, mobile workstation and active cable solutions.

The PS8778 supports up to USB4 Gen 3 x2 or 2x20Gb/s, TBT4 2x 20.625Gb, and DP 2.1 UHBR20 Alt Mode. It implements USB4, USB 3.2 and DP 2.1a power management including Modern Standby (<1mW) and DP 2.1a Advanced Link Power Management (ALPM). The low power design greatly extends the battery life of mobile devices as well as minimizing power use in USB4 active cables. PS8778 comes in a small package, for space constrained designs.

PS8778 extends the overall system channel length by providing additional loss compensation when placed between the SoC (USB4 router) and USB4 retimer such as the PS8833, in a cascade configuration. PS8778 also enables USB4 cables much longer than the 0.8m or 2.6 feet limit for a USB4 Gen 3 passive cable, without degrading the performance.

“PS8778 features industry’s lowest operation power for the full performance of a USB4 / TBT4 / DP 2.1 Alt Mode linear redriver,” says Jimmy Chiu, EVP, marketing. “USB4 active cables can greatly benefit from its low power consumption and very small package. USB4 systems with long PCB traces can now be implemented by OEMs by cascading the PS8778 USB4 linear redriver with the PS8833 USB4 retimer, now in production as a proven total solution from Parade.”

The PS8778 is sampling. It comes in a 2.8×4.4mm 28-pin QFN Halogen free RoHS package.