HMC744LC3
v03.0514
14 Gbps, FAsT RIsE TIME 1:2 FANOUT bUFFER
w/ pROGRAMMAbLE OUTpUT VOLTAGE & pOsITIVE sUppLY
Tyꢁical Aꢁꢁlicationꢀ
Featureꢀ
The HMC744LC3 is ideal for:
• RF ATE Applications
Inputs Terminated Internally to 50 Ohms
Differential & Single-Ended Operation
Propagation Delay: 120 ps
• Broadband Test & Measurement
• Serial Data Transmission up to 14 Gbps
• Clock Buffering up to 14 GHz
Fast Rise and Fall Times: 22 / 20 ps
Programmable Differential
Output Voltage Swing: 600 - 1100 mV
Low Power Consumption: 287 mW typ.
Single Supply: +3.3 V
16 Lead Ceramic 3x3 mm SMT Package: 9 mm2
General Deꢀcriꢁtion
Functional Diagram
The HMC744LC3 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 to the HMC744LC3 are CML and
terminated on-chip with 50 Ohms to the positive supply,
Vcc, and may be AC or DC coupled. The differential
CMLoutputsaresourceterminatedto50Ohmsandmay
also be AC or DC coupled. Outputs can be connected
directly to a 50 Ohm Vcc-terminated system, while DC
blocking capacitors may be used if the terminating
system is 50 Ohms to ground. The HMC744LC3 also
features an output level control pin, VR, which allows
for loss compensation or signal-level optimization. the
HMC744LC3 operates from a single 3.3 V supply and
is available in ROHS-compliant 3x3 mm SMT package.
Electrical sꢁecificationꢀ, TA = +25 ºC, Vcc = 3.3 V, VR = 3.3 V
Parameter
Conditions
Min.
Typ.
3.3
87
Max
3.6
Units
V
Power Supply Voltage
3.0
Power Supply Current
Maximum Data Rate
Maximum Clock Rate
Input Voltage Range
Input Differential Range
Input Return Loss
mA
Gbps
GHz
V
14
14
Vcc - 1.5
0.1
Vcc + 0.5
2
Vp-p
dB
Frequency <14 GHz
Single-Ended, peak-to-peak
Differential, peak-to-peak
10
550
mVp-p
mVp-p
V
Output Amplitude
1100
3.29
Output High Voltage
Output Low Voltage
Output Rise / Fall Time
2.74
V
Single-Ended, 20% - 80%
22 / 20
ps
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implicPahtioon noreo:th9er7w8ise-2un5d0er-a3ny3p4a3tent orFpaatexn:t r9ig7ht8s -o2f A5n0alo-g3D3e7vi3ces. Order On-line at www.hittite.com
Phone: 781-329-4700 • Order online at www.analog.com
1
Application Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are the property of their respective owners.
Application Support: Phone: 978-250-3343 or apps@hittite.com