Proceedings of the Particle Physics and Early Universe Conference (PPEUC). ... Abstract.. ... I thank my collaborators, Simon White and Rashid Sunyaev (MPA), for allowing me to present results from our work. Also I am very grateful to Hans B?hringer and Roland Egger for many helpful discussions and to Joachim Tr?mper ( MPE ) for supporting the ROSAT observation. I further thank Alastair Edge, Andrew Fabian, Mike Jones and Richard Saunders for useful discussion. ... Wed Jul 16 13:49:24 BST 1997 ...

... The design employs a differential structure. ... The input is adapted to 100 differential, and the outputs use standard Low Voltage Differential Signaling (LVDS). ... T/H SINGLE T/H Single Input T/H Single Output 1.35 0.15 0.2 T/H DIFFERENTIAL Input T/H Output T/H 0.1 1.3 0.05 volts volts Figure 5: Digital part and digital gate 0 1.25 -0.05 -0.1 1.2 Integrated Test System A test system is integrated on chip to evaluate the transmission to the data acquisition card (fig: 7). ...