OFDM RADIO FRONT END
To design a circuit that fulfills the strict jitter requirements of a fast OFDM radio front end.
- Fast signals that require impedance controlled routing.
- Extremely low Jitter requirements (200 fs).
- Clean power
- Clear board structure to isolate noise sources from vulnerable circuits
A carefully structured power regulator design with low noise DC/DC converters which provide an intermediate supply which is then regulated by low noise LDO’s to the final voltage ensure the best possible power quality with reasonable conversion losses.
A carefully planned PCB layout with clearly defined functional areas, ground plane management and meticulously executed bypassing and filtering
Altium Designer, ICD Stackup Planner, Years of experience, some luck all added up to a first pass success with minimal revision requirements to achieve a production ready PCB.