M21315G-12

Video Processing Overview

The M21315G-12 is a high-speed, low-power reclocker designed for SMPTE and DVB-ASI serial digital video applications. It removes random and inter-symbol interference jitter from input data streams. The device supports HD/SD-SDI data rates ranging from 143 Mbps to 1485 Mbps, including DVB-ASI at 270 Mbps. It features a 4:1 input multiplexer with Loss of Lock indication and operates on a single 3.3V power supply. Typical power dissipation is 430 mW. The component is housed in a 64-pin MLF package and supports an extended operating temperature range from -10°C to +85°C.

Video Processing Feature Summary

• Integrated 4:1 input multiplexer with selectable auto mute or bypass modes
• Dual-loop architecture combining phase-locked loop and frequency-locked loop for robust clock recovery
• Auto rate detect capability with manual rate selection options
• Differential I/O with on-chip termination resistors compatible with PCML voltage levels

Video Processing Applications

• Serial routing switchers
• Distribution amplifiers
• SMPTE coaxial cable interfaces
• Studio broadcast video systems
• Video distribution networks

Video Processing Procurement Notes

Verify the specific suffix configuration when ordering, as the 'G' designator indicates RoHS compliance. Confirm that the required part number matches the exact pinout and functional requirements, noting that this model lacks serial clock out and loss of signal indicators present in some legacy equivalents. Ensure the selected variant aligns with the intended application's thermal and electrical specifications.

Video Processing Selection Notes

Select this component for designs requiring reduced power consumption compared to legacy reclocking solutions. It serves as a drop-in replacement for the GS1575B and occupies the same footprint as the GS9075B, though without specific indicator outputs. Consider its high jitter tolerance, particularly regarding duty-cycle distortion, when designing AC-coupled interfaces or handling pathological test patterns.

Video Processing Part Context

This device belongs to MACOM's portfolio of high-performance serial digital video interface components. It is engineered to address industry demands for lower power dissipation while maintaining signal integrity in professional broadcast environments. The M21315 integrates advanced reclocking technology within a compact form factor suitable for dense PCB layouts.

Video Processing Replacement Considerations

Functionally and pin-compatible with the GS1575B, excluding serial clock out and loss of signal indicators. It shares the same footprint as the GS9075B but also omits these specific indicators.