ADV7173KSTZ

Overview

The ADV7173KSTZ is a digital video encoder manufactured by Analog Devices Inc. It converts digital CCIR-601 4:2:2 8-bit component video data into standard analog baseband television signals compatible with worldwide standards, including NTSC-M and PAL-B/D/G/H/I/N/M. The device integrates six high-quality 10-bit video DACs for composite, S-Video (Y/C), RGB, and YUV outputs. It operates on a single 5 V or 3.3 V supply within an operating temperature range of 0°C to +70°C. Key specifications include an 80 dB video SNR, a 32-bit direct digital synthesizer for color subcarrier generation, and support for ITU-R BT.601/656 input formats.

Feature Summary

• Integrates Super Sub-Alias Filter (SSAF) technology to provide extended luminance frequency response and sharp stopband attenuation for optimal horizontal line resolution.
• Features advanced power management capabilities including PC'98-compliant auto-detect functionality that automatically powers down unused DACs to reduce consumption.
• Supports comprehensive color control adjustments for hue, brightness, contrast, and saturation alongside programmable luma and chroma filters.
• Includes dedicated ports for teletext insertion during the vertical blanking interval and closed captioning support.

Applications

• High performance DVD playback systems
• Portable video equipment such as digital still cameras and laptop PCs
• Digital satellite and cable set-top boxes

Procurement Notes

Verify the specific package option suffix against the manufacturer's ordering guide to ensure compatibility with the required thermal and mechanical constraints. Confirm that the intended application environment remains within the specified 0°C to +70°C operating temperature range. Ensure proper ESD precautions are implemented during handling due to the sensitivity of the CMOS structure. Validate that the system design accommodates the necessary external clock frequencies for the selected video standard.

Selection Notes

Select this model when a complete digital-to-analog conversion solution is required for multi-standard video encoding without the need for Macrovision anti-copy features found in the ADV7172 variant. Consider the available output configurations, such as composite plus RGB or YUV combinations, to match the target display interface requirements. Evaluate the power supply voltage options between 3.3 V and 5 V based on system energy efficiency goals and load drive capabilities.

Part Context

The ADV7173KSTZ belongs to the ADV7172/ADV7173 family of integrated digital video encoders produced by Analog Devices Inc. Functionally identical to the ADV7172, this specific part number excludes the Macrovision AntiTaping Rev 7.1 algorithm, making it suitable for applications where copy protection is not mandated. Both devices share the same 48-lead LQFP package and core processing architecture.

Replacement Considerations

The ADV7172KSTZ serves as a functional substitute if Macrovision anti-copy licensing is required. Verify that any replacement maintains the same 48-lead LQFP footprint and electrical characteristics to ensure pin compatibility.

FAQ

What is the difference between the ADV7173 and the ADV7172?

The ADV7173 and ADV7172 are functionally identical except that the ADV7172 includes support for the Macrovision AntiTaping Rev 7.1 algorithm, which is absent in the ADV7173.

Can individual DACs be powered off to save energy?

Yes, the device allows for individual DAC ON/OFF control. Turning off unused DACs reduces power consumption proportionally, and the device supports an ultralow sleep mode current.

What types of video output formats does the ADV7173 support?

The encoder supports multiple output formats including Composite Video (CVBS), Component S-Video (Y/C), Component YUV, EuroSCART RGB, and various combinations of these signals simultaneously.