oscillator

Sensing oscillator and its output conditioning. The Key parts and Ports columns are generated by docs/gen_hardware_docs.py; edit only the Function text.

Sheet	Function	Key parts	Ports
differential_ring_oscillator.kicad_sch	3-stage ring oscillator	400 Ω, BSS138AKS-QX	EN, Vcc, Vdd, Vout+, Vout-
oscillator_output_conditioning.kicad_sch	LVDS receive and divide by 4	SN65LVDS2DBVR	Vcc, Vdd, Vin+, Vin-, Vout
clock_divider_by_2.kicad_sch	Divide-by-2 stage	SN74LVC1G80DCKR	CLK, CLK/2, Vcc, Vdd

• Each oscillator stage is an analog/differential_pair.kicad_sch whose tail is fed by one analog/full_current_mirror.kicad_sch output. EN switches the mirror on through a BSS138.
• In oscillator_output_conditioning, the LVDS receiver recovers the clock from Vin+/Vin-; two cascaded clock_divider_by_2 stages give the divided clock on Vout.