Broadcom Introduces World’s Lowest Power L1/L5 GNSS Receiver for Mobile and Wearable Applications
September 22 2021 - 9:00AM
Broadcom Inc. (NASDAQ: AVGO) today announced the world’s lowest
power L1/L5 GNSS receiver chip, the BCM4778, optimized for mobile
and wearable applications. Equipped with the latest GNSS
innovations, this third-generation chip is 35% smaller and consumes
5 times less power than the previous generation.
Dual-frequency GNSS continues to be an important location
feature for modern mobile and wearable devices as it provides
greater positioning accuracy for location-based services (LBS)
applications. The advanced L5 signal enables sidewalk-level
accuracy for pedestrian navigation in urban environments, as well
as lane-level accuracy for vehicle navigation.
Reduction in GNSS power consumption is crucial to extending the
battery life of a mobile or wearable device. Compared to GNSS
receivers used in integrated platforms, Broadcom’s single-chip
BCM4778 delivers significantly lower power consumption and higher
performance while offering more advanced GNSS features, such as the
next-generation Grid Tracking™ urban multipath mitigation
technology. Further, the BCM4778 increases the GNSS always-on
battery lifetime on a smart watch by 30 hours when compared to the
previous generation chip operating on a 300mAh battery. The
extended battery life benefit helps drive new experiences in smart
watches and phones. For example, smart watches can keep the GNSS
always-on for fitness applications for multiple days on a single
battery charge.
In addition, the BCM4778 features fully integrated LNAs for L1
and L5 bands, which reduces RF front-end BOM costs and footprint
requirements, ideal for space-constrained applications. The chip
offers immense flexibility to smart watch and phone designers with
its small size. Having the ability to place the BCM4778 closer to
the antenna helps improve signal reception and thereby enhance the
overall GNSS performance.
Product Highlights
- 7nm CMOS technology
- Typical power consumption
- 4mW L1 band only
- 6mW L1+L5 simultaneous
- FCBGA package
- New Grid Tracking™ technology
- Advanced multipath mitigation
- Continuously tracks the full L5 channel
- Capable of L5 acquisition
- Increased processing capability and throughput
- Advanced LTE filtering and jamming mitigation
- Enhanced LTE Band 13 and Band 14 filtering
- Spoofing and jamming detector
- Jamming mitigation through multiband and multi
constellation
- Reduced BOM cost and footprint
- Flexibility in using internal LNAs
- Optional operation without interstage SAW filters
- Integrated switching regulator with direct connect to
battery
“With the launch of this third generation dual-frequency GNSS
receiver chip, Broadcom continues the tradition of raising the bar
for mobile GNSS,” said Vijay Nagarajan, vice president of marketing
for the Wireless Communications and Connectivity Division at
Broadcom. “Always-on dual frequency GNSS is a key request from
mobile and wearable OEMs, and we are thrilled to deliver it.”
“We are excited to see this impressive power reduction, combined
with the L5 Grid Tracking technology in the new Broadcom GNSS chip.
This will increase the impact of Google’s 3DMA ray-tracing for
urban multipath mitigation,” said Frank van Diggelen, principal
software engineer at Google.
“Consumer electronic companies have been faced with the
challenge of managing power consumption versus performance, often
having to choose one over the other. Broadcom’s innovative approach
to the BCM4778 allows their customers to realize improvements on
both fronts,” said Ramon T. Llamas, research director for mobile
devices at IDC. “The result: device manufacturers can enable new
experiences and run applications over a sustained period of time.
In addition, by reducing its BOM cost and its physical footprint,
Broadcom is enabling further benefits from cost savings and design
configurability.”
Availability
Broadcom is currently sampling the BCM4778 to its early access
partners and customers. Please contact your local Broadcom sales
representative for samples and pricing.
More information on Broadcom’s BCM4778 product is available
online at:
https://www.broadcom.com/products/wireless/gnss-gps-socs/bcm4778
Additionally, Broadcom will be presenting further information on
the chip in the Session B5, Panel: GNSS Chipset Technology –
Trends, Opportunities and Challenges panel at the ION GNSS+ 2021 on
September 24th.
About BroadcomBroadcom Inc. (NASDAQ: AVGO)
is a global technology leader that designs, develops and supplies a
broad range of semiconductor and infrastructure software solutions.
Broadcom’s category-leading product portfolio serves critical
markets including data center, networking, enterprise software,
broadband, wireless, storage and industrial. Our solutions include
data center networking and storage, enterprise, mainframe and cyber
security software focused on automation, monitoring and security,
smartphone components, telecoms and factory automation. For more
information, go to https://www.broadcom.com.
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the trademarks of Broadcom. The term "Broadcom" refers to Broadcom
Inc., and/or its subsidiaries. Other trademarks are the property of
their respective owners.
Press Contact: Khanh LamCorporate
Communicationspress.relations@broadcom.comTelephone: +1 408 433
8649
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