| Name: | SISIRA P.K |
| Affiliation: | Indian Institute of Astrophysics |
| Conference ID : | ASI2023_576 |
| Title : | Updates on DMD Controller Interface Implementation for INSIST project |
| Authors : | Sisira P. K.,
Prasanna Deshmukh,
DVS Phanindra,
Amit Kumar |
| Mode of Presentation: | Poster |
| Abstract Category : | Instrumentation and Techniques |
| Abstract : | The INSIST (Indian Spectroscopic and Imaging Space Telescope) is a UV-optical 1m class telescope expected to produce high-quality imaging and moderate-resolution spectra of astronomical sources. A Digital Micro-mirror Device (DMD) will be used in front of the onboard spectrograph for sampling light coming from astronomical sources of interest in the light path. The role of DMD here is similar to the slit mask used in conventional spectrographs. DMD comprises tiny mirror lets arranged in the form of pixels that can be flipped between two pre-defined positions by applying digital signals. By selecting the appropriate pixels on the DMD the required slit mask shape can be configured. The DMD controller interface module which will transfer the slit mask pattern to the DMD device is under development. The controller interface module will receive the telemetry of the DMD chipset and display the DMD's health. This controller interface takes the data from the user, which contains how many rows and columns of DMD are to be flipped for a particular observation. This module will convert Row and Column data in a format that is suitable to the DMD chipset and transfer it to the chipset with a suitable command format. Presently the hardware and software modules for sending data and clock inputs to the DMD along with the control signals are under development. The key requirement of generation and measurement of Clock and Data signals with skew and jitter characteristics <+/-150ps was achieved. Present status along with test results will be presented in this poster. |
