CS7808 datasheet(22/52 Pages) CIRRUS

部品番号	CS7808

部品情報	MULTI PURPOSE AUDIO/VIDEO EMBEDDED PROCESSOR

PDF	52 Pages

Scroll/Zoom	100%

メーカー	CIRRUS [Cirrus Logic]

ホームページ	http://www.cirrus.com

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22 / 52 page

CS7808

allows overlay of multiple video planes (main vid-

eo / video input / picture_in_picture / on_screen

display / cursor). CS7808 has been proven to work

with many TV encoders on the market with brands

such as: Crystal, Brooktree, ADI, and AVS.

The Video Input Scaler (VIS) module inputs 8-bit

digital video data from a camera or PAL/NTSC de-

coder, optionally down-scales to SIF or QSIF, and

stores the data in one to three DRAM frame buff-

ers. The scaled image, with a border, can be over-

laid anywhere on the screen into a ½ or ¼-screen

sized window by the Picture in Picture (PIP) mod-

ule.

An alternate method of using the Video Input func-

tion is to input a full sized picture and present it on

the screen full size (bypass mode). An internal

glitch-free mux can switch the video processor

clock source from the internal clock to the Video

Input clock, allowing the PIP mode to switch back

and forth on the fly, with no dropout.

CS7808 データシート(PDF) 22 Page - Cirrus Logic