General Description
The IP00C781 device performs simultaneous horizontal and vertical corrections to compensate for
the off-axis distortions introduced by the viewing angle in image projection systems. Combined
with the IP00C721 precision video scaler, it forms a powerful combination for driving projection
systems. The IP00C781 can support H and V keystone corrections of up to 2:1 on 1400x1018
pixels of active image size.
Support Tools
· Evaluation Board
· Local Technical Support
Input Image Formats
· RGB 24-bit up to 85 MHz
· External synchronization (H Sync., V Sync., Clock)
Output Image Formats
· RGB (30)24-bit up to 85 MHz
· External or internal synchronization modes
Keystone Correction
· Image size up to 2400 pixels horizontally with
1400x1018 active pixels
· Max. correction ratio of 2:1 in horizontal direction
· Max. correction ratio of 2:1 in vertical direction
Frame Rate Conversion
· Independent sync. signals for the input and output
image ports
· Frame synchronization function to avoid frame tearing
External Memory
· SDRAM (SGRAM) with 32-bit memory bus interface
· Can operate with a single memory device
· 112 MHz maximum memory clock
Other Features
· YUV-to-RGB conversion with 6 coefficients
· 16-color OSD overlay (16 million colors palette)
· Horizontal and vertical non-linear scaling
· Color dithering for 24-bit or 18-bit output
· Gamma Correction LUT (8-bit in, 10-bit out)
· Brightness and Contrast adjustments
· Edge enhancement function
· LVTTL-compatible inputs and outputs
CPU Interface
· 4-line serial
Power Supply Voltage
· Two sources: 3.3V and 2.5V
Package
· 208-pin Plastic QFP
IP00C781 Features
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