errata from 1st build
- C508: 12pF
- R108: 4.7k
- 2x5 shrouded IDC pin header not in BOM
- R506: 13k, R505: 47k for 5.5V output (5V+drop for 5V LDO on IF PCB)
- L201, L202: 1u (wrong in BOM), L203/4/5/6: 1u2 (wrong in scm, right in BOM)
- I/Q filter mod on trv pcb: diff. pi lp filter with 220nH in series and 27pF shunt caps
- if filter: wrong inductor value in BOM, 68uH!=68nH