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Oki Semiconductor

GHDD4411

EX-OR Circuit

GENERAL DESCRIPTION

Oki’s GHDD4411 is a 10-GHz exclusive-OR/NOR circuit designed to function in 10-Gbps high-speed

communication serial bit streams. The EX-OR must operate from both rising and falling edges at an

equivalent speed of 20-Gbps non-return-to-zero (NRZ) signal to extract a 10-Gbps clock from a 10-Gbps

signal. Using closely matched Gilbert cell circuitry, this device operates at over 10 Gbps using DCFL and

SBFL logic from inverted HEMT technology. Internal input 50-

Ω terminations and a self-referencing bias

voltage allow capacitive coupling, simplifying interconnections.

The GHDD4411 EX-OR circuit is high-speed in a 28-pin ceramic flat package with impedance-controlling

ground plane and flush-mounting bottom heat sink.

FEATURES

• EX-OR and EX-NOR: outputs optimized for

performance

• 1.5 V, 0.6 W: lowest power with 50-

Ω interfaces

• Packaged in 28-pin ceramic flat package with

ground plane and heat sink