DLPC3439: Input range of external YCrCb video source

Prodigy 50 points

Replies: 7

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Part Number: DLPC3439

Hello,

our design is based on DLP4710 device and DLPC3439 chipset, version of fw 7.3.2, (DLP LightCrafter 4710 Gen2). Input parallel interface is directly connected to video decoder using YCbCr 4:2:2, bus width is 16 bits, 1 pixel per clock. Input range is limited - black color corresponding to level 16 (dec) and white color corresponding to level 235 (dec)  - this behaviour is legit under  ITU-R  BT.601. Unfortunately, output range of the image is also limited. My question is - how to expand output video levels to full range from black to white ? (for example how to edit internally stored CSC coeficients for YCbCr conversion).

Regards

Zdenek Zechovsky

7 Replies