Diodes Incorporated announced at the PCI-SIG Developers Conference in Santa Clara, CA, the launch of a broad portfolio of products that support the new PCI Express (PCIe) 5.0 protocol. These include ReDriver, switch, clock generator, and clock buffer devices for use in portable and desktop computing, data centers, and high-performance computing (HPC) applications.
At the forefront of this portfolio is the DIODES PI3EQX32908 . Supporting the 32 Gbps data rates defined by the PCIe 5.0 specification, this ReDriver has eight differential channels with independent channel configuration. Linear equalization, output swing, and flat gain parameters are programmable, so signal loss issues can be minimized and PCB trace lengths can be extended.
In line with Modern Standby requirements, this device consumes less than 5mW of power when the system it is embedded in is in deep standby mode. In addition to the PCIe 5.0 architecture, ReDriver also supports SAS4 and CXL protocols.
Accompanying the PI3EQX32908 are the PI2DBS32212 DIODES , which is one of the industry's first PCIe 5.0 switches. The bidirectional operation of this two-channel differential device provides 2:1 passive Mux and DeMux functionality. With its exclusive design, this switch has dynamic electrical characteristics that minimize signal attenuation.
The bit-to-bit skew is 3ps (typical), while the channel-to-channel skew is only 10ps (typical). When operating at 16 GHz, 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 suitable for use in portable electronic equipment. The PI2DBS32212 also supports USB4 Gen 2x1/Gen 3x1 and Thunderbolt data signals 
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Additionally, for emerging PCIe technology applications, there is the PI6CG330440 DIODES , a 19-output PCIe 5.0 clock generator. This takes a reference input and generates 25 MHz and 100 MHz frequency outputs. It has seven outputs dedicated to 100 MHz and three dedicated to 25 MHz clock signals. The remaining nine selectable outputs can drive 25 or 100 MHz, as necessary. The proprietary design used achieves low jitter performance of less than 50fs.
The PI6CB332001A DIODES , is a 20-out PCIe 5.0 fan-out clock buffer that meets the Intel DB2000QL specification. When operating at PCIe 5.0 architecture speeds, this device exhibits minimal additive phase jitter – 20fs RMS is typical. This gives engineers wider signal integrity margins for their designs.
On-chip termination on the PI6CG330440 and PI6CB332001A outputs results in the need for far fewer external components, saving board space. Due to respective compatibility with Intel CK440Q and Intel DB2000QL, they present higher performance drop-in replacements for other clock generators/buffers targeted at server applications.
“Diodes Incorporated is a valued member of the PCI-SIG and continues to contribute to the progress of PCIe technology in the electronics engineering community,” said Al Yanes, president and president of the PCI-SIG. “Through the semiconductor solutions it presents, the company is helping the latest generations of PCIe technology gain greater diffusion in the market.”
“The emergence of the PCIe 5.0 specification offers the prospect of doubling available bandwidth, and this will be hugely beneficial across all forms of computing equipment and data storage infrastructure,” adds Dr. Jin Zhao, Senior Vice President of Analog Business Group, Diodes Incorporated. “As speeds increase, access to technology that will ensure signal integrity and mitigate losses is becoming more important than ever. Diodes has made a strong commitment to supporting PCIe technology, launching 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.”
Attendees of the 2022 PCI-SIG Developers Conference (June 21-22, Santa Clara Convention Center, Santa Clara, California) can find diodes at booth 8.
