- Sierra demonstration highlights O-RU system integration,
performance, flexibility, energy efficiency, and O-RAN
interoperability
MaxLinear, Inc. (Nasdaq: MXL), a leader in wireless
infrastructure silicon solutions, today announced that it will
showcase its highly integrated “Sierra” Radio System on Chip SoC as
a complete Open RAN Radio Unit (O-RU) solution at MWC 2025. The
demonstration highlights Sierra as a disruptive new silicon
platform enabling radio vendors to rapidly and cost effectively
develop new O-RUs with smaller size, lower weight, higher energy
efficiency, and maximum system reuse across all radio unit (RU)
applications including traditional macro, massive multiple-input
and multiple-output (MIMO), and small cell.
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Sierra radio SoC linearization
performance showcased at MWC 2025 (Graphic: Business Wire)
MaxLinear will demonstrate Sierra simultaneously linearizing
four different radio frequency (RF) power amplifiers (PAs). The PAs
are operating in both Frequency Division Duplex (FDD) and Time
Division Duplex (TTD) bands, have four different output power
levels from 100W macro down to 1W small cell, and are from four
different PA technology suppliers using different high power
silicon processes. The PAs being linearized are:
- RFHIC’s 100W ID19801D GaN power amplifier module
- Macom’s 55W GTRB384608 GaN power amplifier
- NXP’s 9W A5M36TG140 Airfast® LDMOS and GaN power amplifier
module
- Skyworks’ 1W SKY66525-11 GaAs power amplifier
"MaxLinear's advanced linearization technology, when combined
with RFHIC's GaN transistors, delivers superior linearity in power
amplifiers while optimizing efficiency by balancing resource
allocation for enhanced performance. This integration enables
exceptional wideband signal analysis, ensuring seamless compliance
with stringent communications standards,” said Lucas Oh, Director
of Telecommunications Business Division of RFHIC.
“Showcasing its very high efficiency and compact form, our
SKY66525-11 power amplifier and the SKY6652x family of power
amplifiers deliver excellent performance for the key 5G TDD
frequency bands, making them a good match to support Sierra’s
digital predistortion performance,” said Aroonchat Chatchaikarn,
senior director of product marketing at Skyworks. “We’re proud to
partner with MaxLinear on this demo at MWC 2025 featuring our PAs
that can be used in applications from traditional base stations to
Massive MIMO and more.”
MaxLinear and its PA partners will be demonstrating at the
Mobile World Congress 2025 trade show (Hall 2, Meeting Room 2L8MR)
from March 3-6.
About MaxLinear’s Sierra Radio SoC Solution
Sierra’s RF transceiver uses a low-power wide-band Zero-IF (ZIF)
architecture and supports 8 transmitters (TX) and 8 receivers (RX)
with 2 feedback receivers (FBRX). Each RX supports wide signal
bandwidths up to 400MHz and each TX and FBRX supports signal
bandwidths up to 900MHz. It can operate in 8T8R single-band or 2 x
4T4R multi-band configurations.
The digital front-end (DFE) integrates digital pre-distortion
(DPD), Crest Factor Reduction (CFR), PIM cancellation (PIMC),
digital up conversion (DUC), and digital down conversion (DDC)
blocks. MaxLinear's proprietary DPD/CFR technology, MaxLIN™,
linearizes power amplifiers (PA) up to 400MHz of occupied bandwidth
and dramatically improves PA energy efficiency while meeting
spectral emission masks with margin. The PIMC block cancels passive
intermodulation products in the uplink paths to improve receiver
sensitivity and relax the specification of expensive RF filters.
The DUC/DDC supports up to eight component carriers per transmit
and receive path.
The Low-PHY baseband processor supports 4G, 5G, and NB-IoT air
interfaces, including uplink PRACH processing. It can process up to
eight component carriers (CC) per transmit and receive path and it
is software configurable for different modes and parameters,
including dynamic spectrum sharing (DSS), bandwidth parts, mixed
numerology, and windowing.
Sierra supports an O-RAN fronthaul Split Option 7.2x Category A
interface with up to four 10 or 25Gbit/s Ethernet interfaces.
Sierra integrates an embedded CPU for system control. The CPU is
an integrated quad-core Arm® A53 processor with Neon™ extensions.
Each Arm® core has 1MB of internal SRAM and has access to an
additional 8GB of external DRAM through a DDR controller.
For more information on the Sierra RF Radio SoC or MaxLIN DPD
linearization technology, visit:
- www.maxlinear.com/sierra
- www.maxlinear.com/maxlin
About MaxLinear, Inc.
MaxLinear, Inc. (Nasdaq: MXL) is a leading provider of radio
frequency (RF), analog, digital, and mixed-signal integrated
circuits for access and connectivity, wired and wireless
infrastructure, and industrial and multimarket applications.
MaxLinear is headquartered in Carlsbad, California. For more
information, please visit https://www.maxlinear.com/.
MaxLinear, the MaxLinear logo, any other MaxLinear trademarks
are all property of MaxLinear, Inc. or one of MaxLinear's
subsidiaries in the U.S.A. and other countries. All rights
reserved.
All third-party marks and logos are trademarks or registered
trademarks of their respective holders/owners.
Cautionary Note About Forward-Looking Statements
This press release contains “forward-looking” statements within
the meaning of federal securities laws. Forward-looking statements
include, among others, statements concerning or implying future
financial performance, anticipated product performance and
functionality of our products or products incorporating our
products, statements relating to MaxLinear’s Sierra, O-RAN RUs or
MaxLIN solutions and the functionality, performance and the
benefits of use of such products. These forward-looking statements
involve known and unknown risks, uncertainties, and other factors
that may cause actual results to differ materially from any future
results expressed or implied by these forward-looking statements.
We cannot predict whether or to what extent these new and existing
products will affect our future revenues or financial performance.
Forward-looking statements are based on management’s current,
preliminary expectations and are subject to various risks and
uncertainties that could cause actual results to differ materially
from those described in the forward-looking statements.
Forward-looking statements may contain words such as “will be,”
“will,” “expected,” “anticipate,” “continue,” or similar
expressions and include the assumptions that underlie such
statements. The following factors, among others, could cause actual
results to differ materially from those described in the
forward-looking statements: risks relating to the development,
testing, and commercial introduction of new products and product
functionalities; risks relating to our terminated merger with
Silicon Motion and related arbitration and class action complaint
and the risks related to potential payment of damages; the effect
of intense and increasing competition; impacts of global economic
conditions; the cyclical nature of the semiconductor industry; a
significant variance in our operating results and impact on
volatility in our stock price, and our ability to sustain our
current level of revenue, which has previously declined, and/or
manage future growth effectively, and the impact of excess
inventory in the channel on our customers’ expected demand for
certain of our products and on our revenue; the geopolitical and
economic tensions among the countries in which we conduct business;
increased tariffs, export controls or imposition of other trade
barriers; our ability to obtain or retain government authorization
to export certain of our products or technology; risks associated
with international geopolitical and military conflicts; risks
related to the loss of, or a significant reduction in orders from
major customers; costs of legal proceedings or potential violations
of regulations; information technology failures; a decrease in the
average selling prices of our products; failure to penetrate new
applications and markets; development delays and consolidation
trends in our industry; inability to make substantial research and
development investments; delays or expenses caused by undetected
defects or bugs in our products; substantial quarterly and annual
fluctuations in our revenue and operating results; failure to
timely develop and introduce new or enhanced products; order and
shipment uncertainties; failure to accurately predict our future
revenue and appropriately budget expenses; lengthy and expensive
customer qualification processes; customer product plan
cancellations; failure to maintain compliance with government
regulations; failure to attract and retain qualified personnel; any
adverse impact of rising interest rates on us, our customers, and
our distributors and related demand; risks related to compliance
with privacy, data protection and cybersecurity laws and
regulations; risks related to conforming our products to industry
standards; risks related to business acquisitions and investments;
claims of intellectual property infringement; our ability to
protect our intellectual property; risks related to security
vulnerabilities of our products; use of open source software in our
products; and failure to manage our relationships with, or negative
impacts from, third parties.
View source
version on businesswire.com: https://www.businesswire.com/news/home/20250302831723/en/
MaxLinear, Inc. Press Contact: Debbie Brandenburg Sr.
Marketing Communications Manager Tel: +1 669.265.6083
dbrandenburg@maxlinear.com
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