Explanation:

Fanout Capability in ECL:
In Emitter-Coupled Logic (ECL) circuits, the fanout capability refers to the number of standard loads that a gate output can drive without significant degradation in performance. The fanout capability in ECL is typically high compared to other logic families due to its unique current-steering operation.

High Fanout Capability:
ECL gates have a high fanout capability because of their current-mode operation, which allows multiple gates to be connected in parallel without significant voltage drop or signal distortion. This high fanout capability enables ECL circuits to drive multiple loads efficiently.

Advantages of High Fanout Capability:
1. Reduced signal degradation: With a high fanout capability, ECL circuits can drive multiple loads without significant signal degradation, ensuring reliable operation in complex systems.
2. Improved performance: High fanout capability allows for the efficient driving of multiple gates, leading to improved speed and overall performance of ECL circuits.

Conclusion:
In conclusion, the fanout capability in ECL is high, making it a preferred choice for high-speed and high-performance applications where driving multiple loads is essential. The current-steering operation of ECL circuits enables them to maintain signal integrity and performance even when driving multiple loads, setting them apart from other logic families with lower fanout capabilities.