MK2712S

Overview

The MK2712S is an NTSC/PAL clock source synthesizer designed for video encoder and decoder applications. It operates with a 27.0000 MHz LVCMOS input frequency and utilizes an internal PLL to generate precise timing signals. Packaged in an 8-pin SOIC, the device supports core voltages of 3.3V and 5V. It includes a power-down function to disable the chip, making it suitable for integration with components such as the Analog Devices AD722 and Brooktree BT819.

Feature Summary

• Generates dedicated clock frequencies for NTSC and PAL video standards
• Integrates a Phase-Locked Loop (PLL) for stable signal synthesis
• Includes a power-down mode to reduce power consumption when inactive

Applications

• Clock generation for NTSC video encoders
• Clock generation for PAL video decoders
• Timing reference for Analog Devices AD722 chipset
• Timing reference for Brooktree BT819 chipset

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity and date codes upon receipt. Ensure compatibility with existing 3.3V or 5V supply rails. Review current design guidelines for end-of-life management strategies. Validate pinout alignment with legacy system requirements before integration.

Selection Notes

Select this component specifically for legacy NTSC/PAL video processing systems requiring a fixed 27 MHz reference. It is appropriate for designs utilizing AD722 or BT819 video chips. Consider availability constraints given its obsolete classification. Evaluate if modern alternatives meet the same voltage and interface specifications for new developments.

Part Context

The MK2712S belongs to Renesas' family of video clock synthesizers. It serves as a specialized timing solution for analog and early digital video standards. The device simplifies circuit design by providing accurate clock outputs without external crystal tuning. Its integration into video chains ensures compliance with NTSC and PAL broadcast specifications.

Replacement Considerations

The part status is listed as Obsolete. No public confirmed substitute part numbers are available in the provided documentation. Designers should consult official cross-reference lists or contact Renesas support for potential replacement recommendations.