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The AK8812 is a low voltage, low power digital video encoder manufactured by Asahi Kasei Microdevices. It converts ITU-R BT601/656 standard 8-bit parallel data into analog composite video, S-Video, or component Y/Cb/Cr signals in NTSC and PAL formats. The device operates on a single 3.3V supply and accepts a 27MHz system clock. It features triple 10-bit DACs for signal generation and supports Macrovision Copy Protection Rev. 7.1, closed captioning, and Video Blanking ID (CGMS). Configuration is managed via a high-speed I2C interface operating at 400kHz.
Verify the specific revision of the datasheet to ensure compatibility with required standards. Confirm that the application design accommodates the 48-pin LQFP package dimensions. Ensure the host system provides the necessary 27MHz clock signal and adheres to the specified 3.3V power supply requirements for proper operation.
Select the AK8812 when Macrovision Rev. 7.1 copy protection is mandatory, as this feature is exclusive to this model within the AK8811/12 family. Consider the 48-pin LQFP package constraints during PCB layout. Verify that the input source provides compatible ITU-R BT601/656 data streams for optimal integration.
The AK8812 belongs to the AK8811/12 series of digital video encoders designed for portable media devices. It shares core architecture with the AK8811 but adds specific copy protection hardware. Both models target the conversion of digital video data to analog formats for display devices.
Public confirmed substitute part numbers are not available in the provided documentation.