Transmitter
About the Transmitter PCB
Transmitter is an open source PCB design by will127534, published on GitHub under the MIT license. It is a 2-layer board measuring 39 × 39 mm, with 13 components from 10 distinct parts.
Other key parts include the TPSM82902SISR. By type, the board carries 7 connectors, 3 capacitors, 2 resistors and 1 IC.
From the project
A simple MIPI CSI-2 extender with 4-lane support through HDMI cable
The board is very simple. The receiver can either use the 3.3V from the FPC cable or an external power input to supply the HDMI connector’s power output. The HDMI connector location matches the USB connector on the Raspberry Pi 5 to simplify case design.
The transmitter board has a DC-DC step-down converter with a 3.3V output and a bypass option to power camera boards. For the StarlightEye (which needs a 5V input), there is also a connector that taps into the HDMI power input to supply power—this could also power something else, like an LED light source. Additionally, there is a QWIIC…
Main components on the Transmitter
Transmitter bill of materials (BOM)
13 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPSM82902SISR | uSIP11_SIS_TEX | U2 |
| 1 | CONN_01X22_SHIELDED Conn_01x22_Shielded | Hirose_FH12-22S-0.5SH_1x22-1MP_P0.50mm_Horizontal | J1 |
| 1 | HDMI_A_1.4 | HDMI_A_Molex_208658-1001_Horizontal | J2 |
| 2 | CONN_01X04_SHIELDED Conn_01x04_Shielded | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J3, J4 |
| 3 | CONN_01X02_SHIELDED Conn_01x02_Shielded | Molex_PicoBlade_53398-0271_1x02-1MP_P1.25mm_Vertical | J5, J6, J7 |
| 1 | 10UF 10uF | C_0805_2012Metric | C1 |
| 1 | 22UF 22uF | C_0805_2012Metric | C2 |
| 1 | 10UF 10uF | C_0402_1005Metric | C3 |
| 1 | 40.2K | R_0402_1005Metric | R1 |
| 1 | DNC | R_0402_1005Metric | R2 |
Transmitter design files
The KiCad project lives in the will127534/CSI-2-FourLane-HDMI-Extender repository on GitHub; these links point at the commit this page was built from.
Transmitter: common questions
How big is the Transmitter PCB?
The Transmitter measures 39 × 39 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Transmitter?
13 components, from 10 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 Transmitter design files?
From the will127534/CSI-2-FourLane-HDMI-Extender 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 Transmitter design in my own project?
Yes, under the terms of its MIT license, which will127534 chose for the repository.
