Work Profile:

We are hiring a member of the R&D team in charge of the design of very high-speed electrical connectivity working with ASIC and PCB design teams. Special focus on signal integrity, power integrity and EMI/EMS aspects of the signal transmission. Knowledge and experience on electromagnetics simulations and RF design and testing. Application to PCB design, ICs substrates and packages, wire bonding, etc. EMI/EMS testing and pre-compliance testing using the pre-compliance lab at KDPOF office.

The systems that need to be developed in collaboration with the R&D team include:

  • Opto-electronics Multigigabit Ethernet PHYs (e.g. substrate, package, wire bonding)
  • PIC test PCBs:
    • IC bring-up test PCBs,
    • IC PVT characterization tests PCBs
    • IC ATE PCBs
    • IC qualification PCBs (HTOL, HTB, ESD, etc)
  • IC evaluation boards and reference designs in collaboration with FAE and customer support,
  • The systems are wideband, covering frequencies from tens of kHz to tens of GHz

Required Skills:

  • Degree in Electrical and Electronic Engineering or equivalent
  • Solid understanding of electromagnetic theory applied to RF design and testing as well as EMC design and testing
  • Experience in RF design
  • Experience in EM simulation with Keysight ADS and EMPRO
  • Experience in PCB design, focused on high speed links
  • Working knowledge of analog and digital electronics, including details such as component resonances, power devices switching behavior, leakage reactance, plane resonances, and effects of dielectric constant variability, etc.
  • Experience with RF test equipment, use, calibration and interpretation of results (spectrum analyzers, network analyzers, oscilloscopes, signal generators, antennas, coupling clamps, field probes, etc.)
  • Basic knowledge in Matlab is welcome
  • Fluent written and verbal English communication skill is a must: all internal documentation is written in English

Desired Attitude:

  • Continuous search for technical excellence
  • Passion for learning from experience
  • Critical and constructive attitude
  • Capability to accept system design responsibilities. Design: in a broad sense, from the design to the validation in the laboratory and iteration
  • Proactive (problem solving) attitude,
  • Team membership attitude

Others:

  • The role is in Madrid (Tres Cantos)
  • The position reports to the ASIC Manager
  • The role works with all our product portfolios
  • Competitive salary to negotiate according to the candidate’s experience
  • Total employee health insurance and partial spouse and child insurance by KDPOF if applicable.
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Installing POF in the home is very fast and simple but, like other communication installations, it should be verified. The typical way to confirm that the installation is working is to check the link LED indicators. But this provides no indication of how well or how badly the POF link is working. It makes a difference because optical communication suffers attenuations from the fiber length, bending, a bad cut or bad insertion. An installation working close to the sensitivity limit may fail in the future due to small extra attenuations (aging, thermal changes, equipment is hit, etc.)

In order to ensure that the installation has been done properly and is operating with a sufficient margin, checking the link quality is recommended. This video demonstrates the KDPOF debugging tool. It allows monitoring of the POF links in an installation where a KDPOF daisy-chain outlet is used. The monitor application will give information about the outlet ID, operating time, connected ports speed and, of course, the link margin of the optical ports.

List of materials used in the video:

  • 2x POF media converters + PSUs
  • 1x POF daisy chain outlet + PSU
  • POF cable
  • 2x laptop
  • 1x STB
  • 3x UTP cable
  • KDPOF monitoring tool
Video: Point-to-point Link with POF Media Converters
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Installing POF will help to improve the Internet connectivity in the home. A POF link can cover up to 50 m, giving 1 Gb/s performance. The installation does not require high-level skills and can be done with simple tools. POF cable is typically installed through the existing conduits in the house, so it’s easy to reach any room and keep the cable hidden.

This video shows how to connect and check a point-to-point (P2P) POF link by using commercial media converters. Key points are the simplicity and quickness of the cut and connect. The media converter consists of one RJ45 copper port and one optical POF port. It allows the implementation of a P2P link which can cover, for example:

  • Improve wireless connectivity of the furthest room: [Router] <-> POF <-> [WiFi Access Point]
  • Move the router to the optimum place: [ONT] <-> POF <-> [Router]

List of materials used in the video:

  • 2x POF media converters + PSUs
  • POF cable
  • POF cutter
  • 2x laptops
  • 2x UTP cable