HMC7144LC4
28 Gbps EML Driver w/ Peak-Detector
Data Rate
(Gbps)
Function
Gain
(dB)
Group Delay
Variation (ps)
Additive
Jitter (ps)
Output
Voltage Max.
(Vp-p)
Package
28.3
28 Gbps EML
Driver w/ Peak-
Detector
14 ±10 0.25 2.3 LC4
Features
• 100Gb Ethernet ER4/ LR4
systems
• CFP/CFP2 or similar form
factor modules
• Optical transceivers and
pluggable modules
• Broadband gain stages and
pre-amplifiers
• Broadband Test &
Measurement Equipment
Typical Applications
• Operation up to 28.3 Gbps
• Low DC Power Dissipation:
0.12W for 1.5Vpp swing @ 3.5V
supply
0.50W for 2.3Vpp swing @ 6V
supply
• Adjustable Output Amplitude from
1.2Vpp to 2.3Vpp
• Integrated Peak Detector
• 24 Lead Ceramic 4x4mm SMT
Package: 16 mm2
Functional Diagram
General Description
The HMC7144LC4 is a broadband driver amplifier for electro-
absorption modulated lasers (EML) and supports data-rates up to 28.3
Gbps to meet the 100Gb Ethernet system requirements. The part
provides the module designers scalable power dissipation for varying
drive voltage characteristics of different modulators and the power
consumption of the module can be set as low as 0.12W to 0.5W at
1.5Vpp and 2.2Vpp outputs amplitudes, respectively. The
HMC7144LC4 supports wide range of supply voltages from 3.5V to
6V and delivering excellent time domain performance. The driver
incorporates the unique feature, peak-detector with reference, which
enables the continuous output amplitude monitoring without the need
for an external high-frequency circuitry. The output amplitude and
cross-point can be adjusted via control pins. The input and output are
50 Ohms matched and used AC coupled. The HMC7144LC4 is in
robust leadless 4x4mm ceramic surface mountable package.
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