PCI Express continues to grow as the de facto I/O expansion bus in a number of embedded computing applications.
The flexibility of the PCIe interface and the data rates it supports have spawned a number of standard PCB form factors adopted in many different applications.
A common functionality added to many PCIe form factor expansion cards is optical networking. While industry standard active optical cables target typical datacom and telecom applications, a variety of high-speed I/O protocol are moving from copper to fiber. Placing optical engines close to the PCIe endpoint drives system flexibility.

Austin, Texas-based 4DSP designs and manufactures a number of PCIe form factor PCBs. Their solutions deliver high-performance DSP and communication solutions for of military, aerospace, biomedical and chemical science applications.
The PC820 and PC821 are high-performance PCIe form factors solutions targeted at high-performance applications that require large-band signal digitization or generation through the use of accelerated frequency domain algorithms.

The PC870 is a high-performance, PCIe form factors solution with advanced DSP capabilities and multiple I/O options. Adapted from 4DSP’s PC820 FPGA carrier card, it provides one 10-bit ADC channel at 5Gsps and one 10-bit DAC channel at 5Gsps for high-end communication systems.

All of these 4DSP solutions feature Samtec’s FireFly™ Micro Flyover System™. Each 4DSP board features an eight-lane 14 Gbps FireFly™ connector that provides a serial peripheral interface. When combined with a FireFly™ optical engine, all three platforms provide a hardware development system leveraging mid-board optics technology.
For more information on the FireFly™ Micro Flyover System™, please see the following links: