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Latest revision as of 09:13, 4 September 2026

Retina Chip Documentation System — the live, present-state knowledge base for the high-channel-count implantable neural-interface ASIC.

The diagram below is the retina chip signal chain. Click any block to open its wiki page.

This wiki follows two hard rules:

Two genres, never merged — the Timeline is an immutable, append-only chronological record of what was believed on a date. Wiki pages are statements of what is true now. They are never merged.
Durable vs instance — every block splits into a durable page (what the block is, design equations, budgeting procedure — true independent of any chip) and instance pages (component values, sizing, post-PEX numbers, errata for a specific silicon). A chip page is a thin manifest linking to its instances.

Chip	Node	Role
RC1.9	TSMC 28nm HPC+	1024-channel wired AFE redesign; taped out
RC2.0	TSMC 28nm HPC+	wireless variant (UWB); currently active
PMU1	180nm	power-management test chip — does not inherit 28nm defaults
RC3.0 / RC3.1	28nm	future, scaled toward 10k+ channels

@@ Line 4: / Line 4: @@
 The diagram below is the retina chip signal chain. '''Click any block''' to open its wiki page.
-<!--BLOCKDIAGRAM-->
+<imagemap>
+File:Retina-chip-signal-chain.svg|980px|center|Click any block to open its wiki page
+desc none
+rect 40 270 160 340 [[Blocks|Electrode (goes to AFE)]]
+rect 230 270 360 340 [[Block:AFE Gm-C|AFE Gm-C integrator]]
+rect 420 270 550 340 [[Block:SC LPF|Switched-cap LPF]]
+rect 610 270 730 340 [[Block:SAR ADC|SAR ADC]]
+rect 790 270 930 340 [[RC2.0|Wireless / UWB (RC2.0)]]
+rect 420 420 550 490 [[Block:EDO Attenuator|EDO attenuator]]
+rect 610 420 730 490 [[Block:Stimulator|Current-steering stimulator]]
+rect 250 90 400 160 [[Block:Bias Bandgap|Bias / bandgap]]
+</imagemap>
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