HMC850LC3
v03.0614
High Speed Logic - SMT
28 Gbps, 1:2 FANOUT BUFFER
WITH PROGRAMMABLE OUTPUT VOLTAGE
Typical Applications
Features
The HMC850LC3 is ideal for:
Inputs Terminated Internally to 50 Ohms
• RF ATE Applications
Differential Inputs are DC Coupled
• Broadband Test & Measurement
Propagation Delay: 75 ps
• Serial Data Transmission up to 28 Gbps
Fast Rise and Fall Times: 16 / 15 ps
• Clock Buffering up to 20 GHz
Programmable Differential
Output Voltage Swing: 600 - 1100 mV
Power Dissipation: 315 mW
16 Lead Ceramic 3x3 mm SMT Package: 9 mm 2
Functional Diagram
General Description
The HMC850LC3 is a 1:2 Fanout Buffer designed to
support data transmission rates up to 28 Gbps, and
clock frequencies as high as 20 GHz. All differential
inputs and outputs are DC coupled and terminated
on chip with 50 Ohm resistors to the positive supply,
ground. The outputs may be used in either singleended or differential modes, and should be AC or DC
coupled into 50 Ohm resistors connected to ground.
The HMC850LC3 also features an output level control
pin, VR which allows for loss compensation or for signal
level optimization. The HMC850LC3 operates from a
single -3.3V DC supply and is available in a ceramic
RoHS compliant 3x3 mm SMT package.
Electrical Specifications, TA = +25 °C, Vee = -3.3 V, VR = 0 V
Parameter
Conditions
Power Supply Voltage
Min.
Typ.
Max
-3.6
-3.3
-3.0
Power Supply Current
V
95
mA
Maximum Data Rate
28
Gbps
Maximum Clock Rate
20
GHz
Input Voltage Range
-1.5
0.5
V
Input Voltage Differential
100
2000
mV
Input Return Loss
Output Amplitude
Frequency
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