The IIS Chip Gallery
Sandman (2022)
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by
| Application | Communication |
| Technology | 22 |
| Manufacturer | GF |
| Type | Research Project |
| Package | QFN56 |
| Dimensions | 2000μm x 2500μm |
| Gates | 9 MGE |
| Voltage | 0.8 V |
| Power | 583 mW @ 0.8 V, 320 MHz |
| Clock | 320 MHz |
SANDMAN is the first multi-user MIMO receiver ASIC that mitigates jamming attacks. It implements a nonlinear algorithm developed by Gian from the Integrated Information Processing (IIP) group that performs joint jammer mitigation (via spatial filtering) and data detection (using a box prior on the symbols). Thanks to this joint approach, SANDMAN is able to mitigate attacks from smart jammers that try to evade detection or estimation by not transmitting constantly. The SANDMAN ASIC is designed for a 32-antenna basestation communicating with 8 user equipments under the interference of a single-antenna jammer. It supports QPSK and 16-QAM with soft-outputs.
The logo depicts a man made out of sand, not only allegorically but also literally, since silicon is just a sand wrapper :))
The chip was manufactured in 22FDX with generous support from GlobalFoundries' University MPW Program.