Specifications

10 ST-133/ST-133A Controller Manual Version 2.H
tested without having to digitize all the pixels of the array. Completely flexible exposure,
set through software, is also fully supported.
High Speed Data Transfer: Data is transferred directly to the host computer memory
via a high-speed serial link. A frame buffer with standard composite video, either RS-170
(EIA) or CCIR, whichever was ordered, is also provided. The digital data at the output of
the A/D converter is then transferred at high speeds to the host computer. A proprietary
Interface card places the data from the controller directly into the host computer RAM
using Direct Memory Access (DMA). The DMA transfer process ensures that the data
arrives at sufficiently high speed to prevent data loss from the controller. Since the data
transfer rate is much higher than the output rate from the A/D, the latter becomes the
limiting factor for the data acquisition rate. Once the digital data is in RAM, the image
acquisition program can transfer the image into its own working RAM for viewing and
further processing.
Applications: With its small size, fully integrated design, support for a variety of
cameras, CCD arrays, and computers, temperature control, advanced exposure control
timing, and sophisticated readout capabilities, the ST-133 or ST-133A Controller is well
suited to both general spectroscopy, macro imaging and microscopy applications.