This data sheet provides an overview of the features and characteristics of the SAA4981, including a fixed horizontal compression factor of 4/3, support for three fixed screen positions, a bandwidth of 5 MHz, a bypass function, inputs for luminance and chrominance of side panels, standard video inputs and outputs (Y, (B-Y) and (R-Y)), no processing of horizontal and vertical sync signals, and pre-filters and post-filters on chip
The Philips SAA4981 is a monolithic integrated circuit designed as an 16:9 video compressor. It compresses the active part of a video line by a factor of 4/3 to display 4:3 video software correctly on a 16:9 tube. The device supports various video standards including B, C, D, G, H, I, K, Ki, L, M, and N.
| Bandwidth | 5 MHz |
|---|---|
| Package Type | DIP24, SOT137-1 |
| Screen Positions | Three fixed positions |
The IC can be used for video standards B, C, D, G, H, I, K, Ki, L, M and N.
It uses SC Line Memories (Switched Capacitors Line Memories) with different sampling and reading clock frequencies.
The device offers left, centre, and right screen positions for the compressed video.