Two retimers target USB Type-C- for PCs, consoles and cables
Two retimers with adaptive equalisation and bi-directional capabilities address growing opportunities in USB Type-C technology and lower power operation needs, said Diodes.
The PI2DPT1021 and PI2DPT821 bit-level retimers bring power-efficient, low-latency operation to USB-C/DP designs, said the company. They are for use in laptop and desktop PCs, as well as docking stations, computer peripherals, game consoles, and active cables.
They each feature receiver adaptive equalisation, which means that both long trace and short trace applications can be addressed. This function enables channel loss compensation up to -23dB for signal transmissions at 5GHz speeds and -18dB for 4.05GHz speeds plus jitter cleaning, without the need for a local reference clock.
The PI2DPT1021 supports 10Gbits per second USB3.2 Gen2 and DisplayPort (DP) version 1.4 and the PI2DPT821 supports 8.1Gbits per second DP1.4 and USB3.2 Gen1 protocols. A bi-directional, high speed channel in each device allows the flow from downstream facing ports (DFP) and upstream facing ports (UFP) to be swapped. As a result, said Diodes, engineers have greater layout flexibility in terms of signal flow direction. The bi-directional operation of the PI2DPT1021 and PI2DPT821 is suitable for active cable implementations because both of their end connectors are the same and can act as either a DFP or UFP.
The retimers also exhibit low latency from signal input to output (less than one nanosecond) and have a broad temperature range (covering 40 to +85 degrees C). Both the PI2DPT1021 and PI2DPT821 have an I2C programming interface. Automatic power saving modes, applicable to both USB and DP, contribute to minimising energy consumption.
The PI2DPT1021 and PI2DPT821 retimers are supplied in 32-pin QFN packages, measuring 2.85 x 4.5 x 0.45mm dimensions.
Diodes delivers semiconductor products to companies in the consumer electronics, computing, communications, industrial, and automotive markets. Its expanded product portfolio consists of discrete, analogue and mixed-signal products and packaging technology. The company has worldwide operations with 32 sites, including engineering, testing, manufacturing, and customer service, and serves high-volume, high-growth markets.
