The IP Core is a studio quality video scaler capable of generating interpolated output images from 16 x 16 up to 216 x 216 pixels in resolution. The architecture permits seamless scaling (either up or down) depending on the chosen scale factor. Internally, the scaler uses a 24-bit accumulator and a bank of polyphase FIR filters with 16 phases or interpolation points. All filter coefficients are programmable, allowing the user to define a wide range of filter characteristics.
Pixels flow in and out of the video scaler in accordance with the valid-ready pipeline protocol. Pixels are transferred into the scaler on a rising clock-edge when pixin_val is high and pixin_rdy is high. As such, the pipeline protocol allows both input and output interfaces to be stalled independently.
The scaler is partitioned into a horizontal scaling module in series with a vertical scaling module .
Application
Support for the latest generation video formats with resolutions of 4K and above
Video scaling for flat panel displays, portable devices, video consoles, video format converters, set-top boxes, digital TV etc.
Conversion of all standard and custom video resolutions such as HD720P to HD1080P, XGA to VGA etc.
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Introduction |