HMC855 28 Gbps 1:4 Demux SMT with Programmable Output Voltage

The HMC855LC5 is a 1:4 demultiplexer designed for data deserialization up to 28 Gbps. The device uses both rising and falling edges of the half-rate clock to sample the input data in sequence, D0-D3 and latches the data onto the differential outputs. A quarter-rate clock output generated on chip can be used to clock the data into other devices. The demux is DC coupled supporting broadband operation.

All clock and data inputs to the HMC855LC5 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. The differential outputs are source terminated to 50 Ohms and may also be AC or DC coupled. Outputs can be connected directly to a 50 Ohm ground terminated system, or drive devices with CML logic input. The HMC855LC5 also features an output level control pin, VR, which allows for loss compensation or signal level optimization. The HMC855LC5 operates from a single -3.3V supply and is available in RoHS compliant 5x5 mm SMT package.

Applications

SONET OC-192
Broadband Test & Measurement
Serial Data Transmission up to 28 Gbps
FPGA Interfacing

Features and Benefits

Differential & Singe-Ended Operation
Half Rate Clock Input
Quarter Rate Reference Clock Output
Fast Rise and Fall Times: 22 ps
Low Power Consumption: 644 mW typ.

Programmable Differential Output Voltage Swing: 450 - 1144 mV
Single Supply: -3.3V
32 Lead 5x5mm SMT Package: 25mm

High Speed Logic & Data Path Management

Serializer/Deserializers & Selector Muxes

Data Sheets

Document	note
HMC855 Data Sheet	PDF 0.98 M

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
HMC855LC5 Production	LCC:CER LEADLESS CHIP CARR	OTH 50	-40 to 85C	504.02	408.25	Y
HMC855LC5TR Production	LCC:CER LEADLESS CHIP CARR	REEL 100	-40 to 85C	504.02	408.25	Y
HMC855LC5TR-R5 Production	LCC:CER LEADLESS CHIP CARR	REEL 500	-40 to 85C	504.02	408.25	Y