Minutes of the Tracker Electronics Meeting

February 5, 2001

Present: Robert, David, Hartmut, Ned, Masa, Wilko, and Dieter

1. Reviews: Robert; Robert announced that the Tracker PDR is May 30, 2001. The Tracker gets to be first.

2. HP 0.5um Test chip: Masa; Masa presented plots of the shaper output of the five channels with 1fC and 1MIP input signals. The signals looked OK for this signal input. The auto-reset circuit only affects larger signals. Masa will try again with a 50 MIP input signal. Dieter asked for the noise performance and discriminator thresholds to be scanned to see what the offsets are. Robert asked again for the Viewlogic files so UCSC can simulate the circuit as well. Dieter agreed to send them. Wilko also asked for spice simulation of the latest chip shaper output amplitude verses signal input so he can finalize the DAC requirements.

3. GTFE Layout: Ned; Ned stated he is making good progress on the digital layout and will be ready for the pad frame and analog channels from Dieter this Thursday. Dieter will deliver what he has when Ned asks for it. Dieter will try to complete a few details he has time. Robert stated that he would start Sergei on simulation.

4. MCM: David; Tung has spent about one week on the layout. There is plenty more work. David stated that Tung usually spends about 2 weeks on a layout of this size.

5. Flex cable: Robert; Robert stated that the Flex cable length is a concern. Gwelen has located only one vender, Q-FLEX, that will quote on this design. Gwelen also found a manufacturing process that allowed flex cables to be spliced. Robert asked that we design both styles.