Product Brief
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Intel LXT16726/727
Serializer/Deserializer Chipset
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Intel optical components are modular building blocks that enable networking
equipment manufacturers to create standards-based products with shorter
time-to-market and reduced development costs. Developers can use these
opto-electronic components to build optical network solutions to meet a
variety of high-bandwidth requirements in SONET/SDH, Optical Transport
Network or Ethernet networks.
Product Overview
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The Intel LXT16726 and Intel LXT16727
form a high-performance multiplexer/
demultiplexer (MUX/DeMUX) chipset for use
in SDH STM 64 and SONET OC-192 telecom-
munications systems, Optical Transport
Network (OTN) systems with Forward Error
Correction (FEC, submarine systems, 10
Gigabit Ethernet systems, and fiber-optic test
equipment.
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The Intel LXT16726/727 chipset is manufac-
tured using a well-proven silicon bipolar tech-
nology that offers the performance, stability,
and reliability customers require for optical
communication systems.
The Intel LXT16726/727 chipset features two
concepts for timing alignment of clock and data
signals. The first, Dynamic Phase Alignment
(DPA), is based on integrated PLLs to eliminate
any skew between clock and data signals
between ASIC and MUX. The continuous
handling of round trip delay variations by the
source synchronous clocking ensures easy
external optimization of jitter. The second
scheme is based on a 9-bit FIFO to ensure
critical timing alignment between clock and
data signals. When the latter scheme is used,
an integrated PLL
The devices are operated from a single +3.3V
or dual +1.8/+3.3V power supply. The chipset
has a low power dissipation of 1.8W.
The Intel LXT16726 features an integrated
Limiting Amplifier (LIA) with high input sensitivity,
a Clock and Data Recovery unit (CDR), and a
1:16 DeMUX.
The Intel LXT16727 features a 16:1 transmitter
with integrated clock generation, Phase Locked
Loop (PLL) circuits, and 16:1 MUX. The
integrated transmitter ensures simple board
design. The high output swing of the transmitter
ensures compatibility with a wide range of
laser drivers. The Intel LXT16727 is available
in two versions, the original Intel LXT16727
and the newer Intel LXT16727A which
features improved jitter performance.