Design and development of an FPGA-based pnCCD driver & readout system for future satellite mission HiZ-GUNDAM

Gamma-ray bursts (GRBs) are the most luminous cosmic explosions, , emitting energy around 10^52 to 10^54 over several tens of milliseconds to a few hundred seconds. HiZ-GUNDAM is a satellite mission designed to explore the early universe using GRBs as probes. It utilizes a wide-field X-ray monitor consisting of Lobster Eye Optics (LEO) and pnCCD, which detects and determines the direction of GRBs. Our previous readout system consisted of a pnCCD Driver Board, an ADC Board, and an FPGA Board. Our previous readout systems supplied many voltages from DC power supplies, which was impractical. Therefore, we developed a Power Supply Board to generate and supply the necessary voltages from a limited number of power sources.In this presentation, we will introduce and evaluate the performance of the electronic boards we have developed.