For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HIGH SPEED LOGIC - SMT
1
HMC724LC3
v03.0514
14 GBPS FAST RISE TIME
1:2 FANOUT BUFFER
The HMC724LC3 is a 1:2 Fanout Buffer designed to
support data transmission rates up to 14 Gbps, and
clock frequencies as high as 14 GHz. All differential
inputs and outputs are DC coupled and terminated on
chip with 50 Ohm resistors to ground. The outputs may
be used in either single ended or differential modes,
and should be AC or DC coupled into 50 Ohm resistors
connected to ground.
All differential inputs to the HMC724LC3 are CML and
terminated on-chip with 50 Ohms to the positive supply,
GND, and may be DC or AC coupled. The differential
CMl outputs are source terminated to 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
HMC724LC3 operates from a single -3.3 V supply and
is available in ROHS-compliant 3x3 mm SMT package.
General Description
Features
Functional Diagram
Inputs Terminated Internally to 50 Ohms
Differential Inputs are DC Coupled
Propagation Delay: 110 ps
Fast Rise and Fall Times: 19 / 18 ps
Power Dissipation: 300 mW
16 Lead Ceramic 3x3 mm SMT Package: 9 mm2
Typical Applications
The HMC724LC3 is ideal for:
• 16 G Fiber Channel
• RF ATE Applications
• Broadband Test & Measurement
• Serial Data Transmission up to 14 Gbps
• Clock Buffering up to 14 GHz
Electrical Specications, TA = +25 ºC, Vee = -3.3 V
Parameter Conditions Min. Typ. Max Units
Power Supply Voltage -3.6 -3.3 -3.0 V
Power Supply Current 90 mA
Maximum Data Rate 14 Gbps
Maximum Clock Rate 14 GHz
Input Voltage Range -1.5 0.5 V
Input Differential Range 0.1 2.0 Vp-p
Input Return Loss Frequency <14 GHz 10 dB
Output Amplitude Single-Ended, peak-to-peak 550 mVp-p
Differential, peak-to-peak 110 0 mVp-p
Output High Voltage -10 mV
Output Low Voltage -560 mV
Output Rise / Fall Time Single-Ended, 20% - 80% 19 / 18 ps