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Power Electronics Europe News
Portfolio is for PCI Express 5.0
The company’s ReDriver, switch, clock buffer and clock generator devices are for use in portable and desktop computing, data centres and high-performance computing (HPC) applications.

The PI3EQX32908 ReDriver supports 32Gbit/s data transfer rate defined by the PCIe 5.0 specification. It has eight differential channels, with independent channel configuration. Linear equalisation, output swing and flat gain parameters are all programmable, so that the signal loss issues can be minimised and PCB trace lengths extended. It draws less than 5mW of power when the system in which it is incorporated is in deep standby mode. In addition to the PCIe 5.0 architecture, the ReDriver also supports SAS4 and CXL protocols.

There is also the PI2DBS32212 which is claimed to be one of the industry’s first PCIe 5.0 switches. The bi-directional operation of this two-differential channel device offers 2:1 passive mux and de-mux functionality. The switch’s design has dynamic electrical characteristics that minimise signal attenuation. Bit-to-bit skew is 3ps (typical), while channel-to-channel skew is only 10ps (typical). When operating at 16GHz, both insertion and return losses remain very low, at -2.7dB and -10.8dB respectively. Its 1.8V supply voltage and compact size make the switch suitable for use in portable electronic equipment. The PI2DBS32212 is also compatible with USB4 Gen 2x1/Gen 3x1 and Thunderbolt 3 data signals.

Another introduction is the PI6CG330440 19-output clock generator. This takes a reference input, and then generates 25MHz and 100MHz frequency outputs. It has seven outputs dedicated to 100MHz and three dedicated to 25MHz clock signals. The remaining nine selectable outputs are capable of driving either 25MHz or 100MHz, as required. The proprietary design used achieves very low jitter performance of less than 50fs.

The PI6CB332001A is a 20-output fan-out PCIe 5.0 clock buffer that meets the Intel DB2000QL specification. When operating at PCIe 5.0 architecture speeds, minimal additive phase jitter is 20fs RMS (typical) for wide signal integrity margins in designs.

The on-chip termination on the outputs of both the PI6CG330440 and the PI6CB332001A result in far fewer external components being required, saving board space, added the company. They are compatible for the Intel CK440Q and Intel DB2000QL respectively and they are drop-in replacements for other clock generator/buffers targeted at server applications, said Diodes.

The PCIe 5.0 specification offers the prospect of doubling the bandwidth available, and this will be hugely beneficial in all forms of computing equipment and data storage infrastructure,” says Dr. Jin Zhao, senior vice president, Analog Business Group, Diodes. “As speeds increase, access to technology that will ensure signal integrity and mitigate losses is becoming more important than ever. Diodes has made a major commitment to supporting PCIe technology, releasing innovative products to address each protocol generation that has emerged. Our new PCIe 5.0 product portfolio continues to build on this strong track record,” he said.

The PI3EQX32908 is supplied in a 62-pin W-QFN package. The PI2DBS32212 is in a 24-pin X1QFN package taking up only 2.5 x 2.5mm of PCB space.

The PI6CG330440’s 100-pin UQFN package has 8.0 x 8.0 x 0.6mm dimensions, and the PI6CB332001A 80-pin aQFN package occupies a 6.0 x 6.0mm footprint.


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