Diodes unveils comprehensive PCIe 5.0 portfolio

2 mins read

Diodes has introduced a broad new portfolio of products supporting the latest PCI Express (PCIe) 5.0 protocol.

This portfolio includes ReDriver, switch, clock generator, and clock buffer devices for use in portable and desktop computing, data centres, and high-performance computing (HPC) applications.

The DIODES PI3EQX32908 supports the 32Gbps data rates defined by the PCIe 5.0 specification, and this ReDriver has eight differential channels, with independent channel configurations. Linear equalisation, output swing, and flat gain parameters are all programmable, so that the signal loss issues can be reduced, and PCB trace lengths extended.

In line with Modern Standby requirements, this device draws less than 5mW of power when the system in which it is incorporated is in deep standby mode. As well as PCIe 5.0 architecture, the ReDriver also supports SAS4 and CXL protocols.

Accompanying the PI3EQX32908 is the DIODE PI2DBS32212, which is one of the industry’s first PCIe 5.0 switches. The bidirectional operation of this two-differential channel device offers 2:1 passive Mux and DeMux functionality. This switch delivers 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 this switch highly suited for use in portable electronic equipment. The PI2DBS32212 is also compatible with USB4 Gen 2x1/Gen 3x1 and Thunderbolt 3 data signals.

Also, for emerging PCIe technology applications, there is the DIODES PI6CG330440, which is a PCIe 5.0 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 DIODES 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, this device exhibits minimal additive phase jitter - with 20fs RMS being typical. This gives engineers wider signal integrity margins for their 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. Because of their respective Intel CK440Q and Intel DB2000QL compatibility, they present higher performance drop-in replacements for other clock generator/buffers targeted at server applications.

The PI3EQX32908 is supplied in a 62-pin W-QFN package. The PI2DBS32212 comes in a 24-pin X1QFN package taking up only 2.5mm x 2.5mm of PCB space. The PI6CG330440’s 100-pin UQFN package has 8mm x 8mm x 0.6mm dimensions, while the PI6CB332001A 80-pin aQFN package occupies a 6mm x 6mm footprint.