Epson E64E510 GNSS IC: Ultra-Low Power for Wearable Location Tracking

Introduction – Tackling Wearable Positioning Challenges

Positioning technology has become essential in countless applications, from sports watches to asset tracking and IoT devices. However, engineers developing wearable and battery-powered devices face a significant challenge: how to implement accurate location tracking without draining batteries. Traditional GNSS (Global Navigation Satellite System) receivers consume substantial power, often making them unsuitable for compact, energy-constrained applications.

Epson's E64E510 series GNSS ICs address this challenge head-on, offering industry-leading power efficiency while maintaining high-precision positioning. Built on Epson's rich heritage in precision timekeeping and wearable technology, these advanced GNSS solutions deliver exceptional performance for engineers designing the next generation of location-aware devices.

Ultra-Low Power Consumption Without Compromising Accuracy

The E64E510 series stands out in the crowded GNSS market through several ground-breaking

innovations that prioritise both power efficiency and positioning accuracy:

Unprecedented Power Efficiency

Power consumption testing reveals a stunning advantage compared to competitors. The E64E510 consumes just 1/3 power of existing solutions during GPS operation —a fraction of the power required by alternative solutions.

This dramatic reduction in power consumption directly translates to extended battery life—an essential consideration for wearable devices, sports trackers, and IoT applications.

Smart Duty Control Technology

One of the E64E510's most innovative features is its Smart Duty Control system, which

automatically adjusts power consumption based on environmental conditions:

•      In open areas with strong satellite signals, power consumption level is just 1/3 of existing solutions

•      As signal strength weakens in urban environments, the system intelligently adjusts power utilisation

•      Without Smart Duty Control, power consumption would remain at a 30% higher level than existing solutions regardless of conditions

This dynamic power management ensures optimal battery life while maintaining reliable positioning performance in varied environments.

Anti-Multipath Technology

Urban environments present significant challenges for GNSS systems due to signal reflections from buildings. These "multipath" effects can severely degrade positioning accuracy. The E64E510 addresses this through:

•      Original waveform correlation techniques that identify and prioritise direct satellite signals

•      Advanced multipath rejection algorithms that filter out reflections

•      Demonstrated 2.5x better accuracy than competitors in dense urban environments

E64E510 Specifications: Precision Engineering in a Compact Package

The E64E510 series delivers impressive technical specifications in an ultra-compact form

factor:

Feature	Specification	Benefit
Form Factor	As small as 3.9 x 4.0mm (E64E510W2000)	Enables integration into compact wearables
GNSS Support	GPS/GLONASS/BeiDou/QZSS	Global coverage with multi- constellation support
Position Accuracy	1.0m (average error at -130dBm)	Reliable positioning for navigation applications
Time-To-First- Fix	Hot start: 2 sec / Cold start: 35 sec	Quick position acquisition
Operating Voltage	0.9V-3.3V	Flexible power supply options
Interfaces	UART/I2C/SPI with PPS/GPIO support	Easy integration with host microcontrollers
Update Rate	Up to 20Hz	Smooth tracking for sports applications
CPU	Dual-core Cadence LX6	Powerful on-chip processing

The E64E510 series includes two variants:

•      E64E510B2000: With built-in 16MBit Flash ROM (5.5 x 5.5mm)

•      E64E510W2000: Without Flash (3.9 x 4.0mm) for the most space-constrained applications

Specialised TCXO Integration for Maximum Efficiency

Part of the E64E510's exceptional power performance comes from its optimized integration with Epson's original TCXO (Temperature-Compensated Crystal Oscillator) technology:

•      The dedicated low-power TCXO operates at just 1.1V

•      Built-in LDO improves noise removal performance

•      71% reduction in TCXO power consumption compared to conventional implementations

This system architecture ensures maximum power efficiency while maintaining the precise

timing required for accurate satellite signal processing.

Software Development Kit for Rapid Deployment

To accelerate development, Epson offers a comprehensive Software Development Kit (SDK) with specialised packages for different applications:

•      General Package: Base functions, ultra-low power modes, and multi-GNSS support

•      Advanced Power Control Package: Further optimizes battery life with enhanced power

management

•      Sports Package: Specialized functions for running, climbing, and swimming

applications

•      Tracker Package: Functions for zone monitoring and geofencing applications

•      Server Package: High-accuracy static mode and precise position prediction

These ready-made software components simplify integration and reduce time-to-market for specialised location-tracking products.

Real-World Applications

The E64E510's combination of ultra-low power consumption and high accuracy makes it ideal

for numerous applications:

Wearable Technology

•      Sports watches and fitness trackers

•      GPS-enabled smart watches with extended battery life

•      Health monitoring devices requiring location tracking

IoT and Asset Tracking

•      Battery-powered asset trackers

•      Smart tags and logistics monitors

•      Low-power geofencing solutions

Outdoor and Sports Equipment

•      Running, cycling, and swimming monitors

•      Hiking and outdoor navigation devices

•      Golf and sports analytics tools

Conclusion - Why

Epson's E64E510 series represents a significant advancement in GNSS technology, offering unprecedented power efficiency without compromising on accuracy. With 1/3 less power consumption than existing solutions, these ICs enable engineers to design smaller, longer-lasting location-aware devices.

By combining low power consumption with technologies like Smart Duty Control and Anti- Multipath, Epson has created a GNSS solution that performs exceptionally well even in challenging urban environments where positioning is traditionally difficult.

For engineers designing wearables, IoT devices, or any battery-powered application requiring location awareness, the E64E510 series provides an ideal combination of size, power efficiency, and positioning performance.

Contact Ineltek today to discuss how Epson's E64E510 GNSS ICs can enhance your next design project.