DACEL – DACEL2
Design And Characterization of deep submicron ELectronic devices for future particle detectors. The aim of the project is to investigate the radiation tolerance and the performances of the CMOS 0.13 µm technology for the next generation of particle physics experiments. The test bench for this technology is the GBT13, an optical transceiver for the transmission of clock, data, trigger and control information from/to the detector front-end electronics.
I am working on the design of the laser driver. A first version of the laser driver has been designed and tested. The signal rising and falling edge proved to be sufficiently fast, but a bug in the internal test signal generator prevented us from testing the driver at the required 3.2 Gb/s. The maximum data rate is 2 Gb/s.
A second version, aimed at 5 Gb/s, has been designed and is currently under test.
GBLD v1.0 (2005) : 3.2 Gb/s single ended laser driver with internal test signal generator. Chip status : designed and tested.
GBLD v2.0 (2008) : 5 Gb/s differential laser driver with input driver, pre/de emphasis, duty cycle control, internal bias and I2C interface. Chip status : under test.
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