PCIe® 4.0 16-Gbps 4-channel linear redrivers with integrated 2:1 mux

The DS160PR421 is four

channel linear redrivers with integrated multiplexer

(mux). The low-power high-performance linear redriver is designed to

support PCIe 4.0 and other interfaces.

The DS160PR421 receivers deploy continuous

time linear equalizers (CTLE) to provide a high-frequency boost. The equalizer can

open an input eye that is completely closed due to inter-symbol interference (ISI)

induced by an interconnect medium, such as PCB traces and cables. The linear

redriver along with the passive channel as a whole get link trained for best

transmit and receive equalization settings resulting in best electrical link and

lowest possible latency. Low channel-channel cross-talk, low additive jitter and

excellent return loss allows the device to become almost a passive element in the

link. The devices has internal linear voltage regulator to provide clean power

supply for high speed data paths that provides high immunity to any supply noise on

the board.

The DS160PR421 implements high speed testing

during production for reliable high volume manufacturing. The device also has low AC

and DC gain variation providing consistent equalization in high volume platform

deployment.