| Language | |
| English | |
Zur deutschen Seite
Input/Output Module (I/O)
- Fabrication Responsibility:
- Lyle Johnson, WA7GXD (USA)
Chuck Green, N0ADI (USA) - Size:
- Extension 200x270
- Average Power Dissipation:
- 1 Watt
Description
The Phase 3D spacecraft is very complex and requires considerably more Input/Output (I/O) capacity than can be conveniently provided by the IHU's 1802 processor. Previous Phase 3 spacecraft used an analog multiplexer to provide 24 temperature inputs, 24 voltage measurement points and 12 current measurement points. The Phase 3D multiplexer provides- 48 temperature measurement points,
- 64 voltage measurement points and
- 12 current measurements points.
Like the IHU, the I/O Module is designed using flight-proven 4000-series CMOS logic operating at 10 volts, as well as bipolar op-amps and comparators. The basis of the circuitry uses legacy designs by DJ4ZC.
Last updated: Feb 4, 1996
by Ralf Zimmermann, DL1FDT
This URL: http://www.RalfZimmermann.de/phase3d/io.html