1p6V to m1p6V bias gum
About the 1p6V to m1p6V bias gum PCB
1p6V to m1p6V bias gum is an open source PCB design by esl-epfl, published on GitHub. It is a 4-layer board measuring 15.2 × 34.3 mm, with 25 components from 16 distinct parts.
Other key parts include the TPS72301, TLV75801PDBV, MCP4726 and 24AA02E-OT. By type, the board carries 10 capacitors, 9 resistors, 4 ICs, 1 connector and 1 test point.
It belongs with the usb & debug tools designs in this gallery.
From the project
This is a set of PCBs to test, in principle, X-HEEP chips (CHEEPs)... but, you can use it to test any chip you want, for what it matters.
This is a set of PCBs to test, in principle, X-HEEP chips (CHEEPs)... but, you can use it to test any chip you want, for what it matters.
The general idea is to recycle efforts, so all the things that are common to any CHEEP were moved into a main board. This one includes an FTDI through which you can program or communicate with your cheep, as well as some peripherals like flash, buttons, LEDs, etc. The main board also generates all the voltages needed by these blocks.
Main components on the 1p6V to m1p6V bias gum
1p6V to m1p6V bias gum bill of materials (BOM)
25 components, 16 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS72301 | SOT-23-5 | U2 |
| 1 | TLV75801PDBV | SOT-23-5 | U3 |
| 1 | MCP4726 | TSOT-23-6 | U4 |
| 1 | 24AA02E-OT | SOT-23-5 | U5 |
| 1 | C1509219 Conn_Coaxial | SMA_Amphenol_132289_EdgeMount | J1 |
| 1 | 5029 Keystone Electronics | TestPoint_Keystone_5019_Miniature | TP3 |
| 3 | 0.1U 0.1u | C_0603_1608Metric | C1, C2, C10 |
| 2 | 2.2U 2.2u | C_0603_1608Metric | C3, C5 |
| 5 | 10U 10u | C_0603_1608Metric | C4, C6, C7, C8, C9 |
| 1 | 68.1K 68.1k | R_0603_1608Metric | R1 |
| 1 | 38.3K 38.3k | R_0603_1608Metric | R2 |
| 2 | 53.6K 53.6k | R_0603_1608Metric | R3, R5 |
| 1 | 11.3K 11.3k | R_0603_1608Metric | R4 |
| 2 | 10K 10k | R_0603_1608Metric | R6, R11 |
| 1 | 20K 20k | R_0402_1005Metric | R8 |
| 1 | 100K 100k | R_0402_1005Metric | R10 |
1p6V to m1p6V bias gum design files
The KiCad project lives in the esl-epfl/CHEEP-boards repository on GitHub; these links point at the commit this page was built from.
1p6V to m1p6V bias gum: common questions
How big is the 1p6V to m1p6V bias gum PCB?
The 1p6V to m1p6V bias gum measures 15.2 × 34.3 mm, has 4 copper layers and is 1.6062 mm thick.
How many components are on the 1p6V to m1p6V bias gum?
25 components, from 16 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 1p6V to m1p6V bias gum design files?
From the esl-epfl/CHEEP-boards repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the 1p6V to m1p6V bias gum design in my own project?
The repository has no license, so all rights stay with esl-epfl. Use it as a reference, and ask the author before reusing the design.
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