ADV7192

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ADV7192

Video Encoder with Six 10-bit DACs, 54 MHz Oversampling and Progressive

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特長

Six High-Quality 10-Bit Video DACs
10-Bit Internal Digital Video Processing
Multistandard Video Input
Multistandard Video Output
4× Oversampling with Internal 54 MHz PLL
Programmable Video Control Includes:
Digital Noise Reduction
Gamma Correction
Black Burst
LUMA Delay
CHROMA Delay
Multiple Luma and Chroma Filters
Luma SSAF™ (Super Subalias Filter)

Average Brightness Detection
Field Counter
Macrovision Rev. 7.1
CGMS (Copy Generation Management System)
WSS (Wide Screen Signaling)
Closed Captioning Support

製品概要

The ADV7192 is part of the new generation of video encoders from Analog Devices.

The ADV7192 is an integrated Digital Video Encoder that converts Digital CCIR-601 4:2:2 Component Video Data (8-, 16-bit) into a standard analog base band television signal compatible with NTSC, PAL B/D/G/H/I, PAL M, PAL N& PAL-60. In addition to the composite output signal, there is the facility to output S-VHS Y/C Video, RGB Video and YUV Video. The Y/C, RGB and YUV format is simultaneously available at the analog outputs with the composite video signal. All six DACs are capable of providing an output current of 4.33mA. The ADV7192 also supports both a PAL and NTSC square pixel modes.

The ADV7192 incorporates in its new design programmable Gamma Correction, programmable Digital Noise Reduction and 4xOversampling with an internal PLL to output data at 54MHz. Furthermore, it is possible to input data in progressive scan format (3x10 bit YCrCb).

Video control functions have been improved in increasing scale factors for the color and contrast controls and the brightness control. An Average Brightness Detection control has been added as well as a Field Counter. Also, Chroma and Luma can now individually be delayed if required.

All internal clocks are generated on-chip. The ADV7192 modes are set up over a serial bi-directional I²C port. Additionally, the ADV7192 allows a sub-carrier phase lock with an external video source and has a color bar generator on-board. The ADV7192 incorporates the Macrovision (Revision 7.1) anti-copy algorithm.

The ADV7192 is designed with programmable Luminance and Chrominance filters for better video performance. The Luminance filter has a special mode called SSAF™, which gives extended bandwidth and has a very sharp roll-off.

The ADV7192 is designed with four color controls (Hue, Contrast, Brightness and Saturation).

There is also the facility to boost the Luminance signal in changing the response of the SSAF™ filter.

HSO & VSO/CSO TTL O/P's timed to the analog output video are available.

A CLAMP output signal is available to enable clamping in both the Front and Back Porch of the video signal.

All YUV formats (BetaCam, MII and SMPTE/EBU N10) are supported.

The ADV7192 also has a separate teletext input port.

The ADV7192 has an Advanced Power Management system whereby the Sleep current is as lower than 1mA and still allows I²C access during this Sleep Mode of operation. This is ideal for portable equipment which is sensitive to power consumption like Laptops.

The ADV7192 is fabricated in a +3 V CMOS process. Its monolithic CMOS construction ensures greater functionality with low power dissipation. The ADV7192 is packaged in a 80-Pin LQFP package.