29 June 2004Paul Dauncey6 Calibration with DAC Need to determining timing Output signal is shaped by CR-RC circuit, shaping time ~200ns Adjust HOLD start time so that sample-and-hold captures peak Can change HOLD time in software configuration; steps of 6.25ns Scan HOLD time and fit for peak With HOLD timing set correctly, scan DAC From zero to channel saturation 16-bit DAC, 1 DAC count = 20  V Determine mean and noise at each point Fit for intercept and response Channels divided into 6 groups for DAC Calibration can be enabled independently for each group Look at response of non-enabled channels Measure crosstalk
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