zyphlar
71 lines
2.1 KiB
Plaintext
71 lines
2.1 KiB
Plaintext
Baby Walker Ball Toy:
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Left side
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1 - K1 (button)
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2 - K2
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3 - NC
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4 - GND
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5 - VCC 4.5V
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6 - GND isolated
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7 - K3
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8 - LED1
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Right side (starting with top, opposite L1; not counter-clockwise)
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9 - NC
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10 - GND
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11 - SPK1
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12 - SPK2
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13 - VCC 4.5V
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14 - NC
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15 - LED3
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16 - LED2
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# Flex Adapter Design Notes
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## Purpose
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Create a small flex-style PCB connector adapter with:
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- One end solderable directly onto a TSSOP-16 footprint using castellated edge contacts.
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- One end shaped as an 8-contact FPC/FFC finger tail.
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## Selected FPC Connector Target
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- Target connector: JUSHUO AFC01-S08FCA-00
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- LCSC/JLCPCB part: C262657
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- Positions: 8
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- Pitch: 0.5 mm
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- Contact style: bottom contact, right-angle FPC/FFC connector
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- Mating tail thickness: 0.3 mm
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## Physical Geometry Implemented
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- Board: 22 mm x 5 mm, 2-layer stackup.
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- TSSOP/castellated end:
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- 8 contacts per side, 16 castellation pads total.
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- 1.125 mm pitch along the long axis.
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- 9.0 mm nominal contact-field length.
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- 4.4 mm spacing between opposing castellation rows.
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- FPC end:
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- 8 exposed copper fingers.
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- 0.5 mm pitch.
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- 0.30 mm finger width.
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- 4.5 mm exposed finger length.
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## Pin Mapping Assumption
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Because the user requested an 8-pin FPC end but a TSSOP-16 solder footprint end, this design treats each opposing pair of TSSOP castellations as one duplicated signal:
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- TSSOP L1/R1 -> FPC 1
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- TSSOP L2/R2 -> FPC 2
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- TSSOP L3/R3 -> FPC 3
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- TSSOP L4/R4 -> FPC 4
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- TSSOP L5/R5 -> FPC 5
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- TSSOP L6/R6 -> FPC 6
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- TSSOP L7/R7 -> FPC 7
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- TSSOP L8/R8 -> FPC 8
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If all 16 TSSOP pads must be independent, the FPC end must be changed to 16 positions or the design must define which TSSOP pads are intentionally shorted.
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## Manufacturing Notes
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- The custom edge pads are PCB features, not assembled parts.
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- For a true flexible PCB tail, order as flex PCB with stiffener/contact finish requirements appropriate for the selected FPC connector.
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- ENIG is recommended for exposed FPC fingers.
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- Confirm minimum edge-castellation capability with the fabricator before production. |