HMC847LC5 is a 4:1 multiplexer designed for 45 Gbps data serial applications. The multiplexer latches four differential inputs at the conversion point of the input clock. The device uses the rising and falling edges of a half-rate clock to transmit data serially. The on-chip generates a 1/4 rate clock output that is synchronized with the HMC847LC5 data output.
All clock and data inputs/outputs HMC847LC5 are CML and terminated to VCC via an on-chip 50 Ω, which can be DC or AC coupled. HMC847LC5 inputs and outputs can be operated in differential or single-ended configurations. HMC847LC5 also integrates an output level control pin, VCTRL, which can be used for loss compensation or signal level optimization. The VDCC pin controls the data output intersection and duty cycle. HMC847LC5 operates from a single +3.3V supply and is available in a ROHS-compliant 5x5 mm SMT package.
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