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34 lines
1.1 KiB
Markdown
34 lines
1.1 KiB
Markdown
# TOSLINK Rev A KiCad template notes
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Use `TOSLINK_EDGE_CARRIER_TEMPLATE.kicad_mod` as a *mechanical helper* footprint.
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What it is for:
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- board-edge reference
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- connector body reference
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- keepout for fiber + carrier
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- support-hole placeholders
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- carrier anchor-hole placeholders
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What it is **not** for:
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- actual electrical pin geometry of your TX/RX module
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Recommended usage:
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1. Import the official TOSLINK electrical footprint from the exact module datasheet.
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2. Put the optical mouth flush to the board edge.
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3. Add this helper footprint on top of or adjacent to the connector footprint.
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4. Replace the placeholder dimensions:
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- A = support hole pitch
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- B = left/right carrier anchor pitch
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- C = edge-to-anchor center distance
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- signal pin row positions
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- body width/depth
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5. Add matching features to the printed carrier:
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- hard stops for X/Y alignment
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- light flex arm for retention
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- clearance for fiber insertion
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6. Keep tall parts out of the carrier zone.
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Mechanical rule of thumb:
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- PCB handles signals.
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- Carrier handles insertion force.
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- Solder joints should not be the only retention feature.
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