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Mixed-Signal Optical Communication Circuit

Freelancer

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event发布于 2026年9月10日 · verified我们于 2026年9月10日 确认该职位仍然有效

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₹ 1.500 – ₹ 12.500 (每个项目)

职位介绍

I need a custom mixed-signal circuit engineered from the ground up to drive an optical wireless communication link. The design must cleanly blend an accurate analog front-end—handling photodiode receive and LED/VCSEL drive stages—with the required digital processing blocks for modulation, clock recovery, and protocol framing. My priority is signal integrity across the entire chain: low-noise transimpedance amplification, precise ADC/DAC selection, and robust high-speed PCB layout that minimises jitter and EMI. Component choices should be commercially available and cost-effective for a small production run. Because the target is an optical wireless channel rather than Bluetooth, Wi-Fi, or Zigbee, you are free to choose or recommend the most suitable modulation scheme (e.g., OOK, VPPM, OFDM) provided the final design can sustain a reliable link at ≥100 Mb/s over a 5-10 metres in typical office lighting. Deliverables • Complete schematic in Altium, KiCad, or equivalent • PCB layout files and Gerbers ready for manufacturing • Annotated BOM with supplier links • Hardware circuit designs (Not Simulation) with validation • Brief design report explaining key decisions and expected performance metrics Acceptance criteria 1. Reliable Trans receiver design 2. Hardware Testing 3. PCB stack-up and differential pair impedances documented. I am ready to answer detailed technical questions quickly so we can iterate efficiently and reach a production-ready design.

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