STANDARD GNSS
TAU1114 GNSS Module
TAU1114 is a cost-effective GNSS positioning module based on the CYNOSURE III Lite GNSS SoC, supporting GPS/QZSS, BDS, Galileo, GLONASS and SBAS at low current consumption. It features SAW, LNA, flash memory and an antenna supervisor, and works with both active and passive antennas. Pin compatibility with TAU1102, TAU1111 and many mainstream GNSS modules makes it the perfect choice to upgrade existing designs — for lower power consumption or to avoid excessive lead times.
SystemGPS / BDS / GAL / GLO / SBAS
Accuracy1.5 m CEP
BandL1
Use CaseFleet / Telematics / Navigation
Key Features
Why TAU1114 Stands Out
Cost-effective GNSS positioning module with high sensitivity and fast TTFF, designed for tracking, telematics and navigation.
Multi-Constellation Support
GPS/QZSS, BDS, Galileo, GLONASS and SBAS reception for reliable global positioning.
Low Current Consumption
Only 15 mA tracking current for power-sensitive tracking and telematics devices.
Built-in SAW + LNA
Flexible antenna design with active/passive antenna support, supervision and protection.
Easy Design Upgrade
Pin-compatible with TAU1102 / TAU1111 and many mainstream GNSS modules.
Technical Specifications
Specification Overview
Key electrical and performance parameters for TAU1114. Full details are available in the official datasheet.
| Parameter | Specification |
|---|---|
| GNSS Reception | GPS/QZSS: L1C/A · Galileo: E1 · GLONASS: G1 · BDS: B1I · SBAS: L1 |
| Channels | 88 GNSS channels, 5 Hz maximum update rate |
| Position Accuracy | 1.5 m CEP (open sky) |
| Sensitivity | Cold start -148 dBm · Hot start -156 dBm · Tracking -163 dBm |
| TTFF | Hot start 1 s · Cold start 26–28 s |
| Velocity & Time | 0.1 m/s CEP · 1PPS 20 ns |
| Power Consumption | 15 mA @ 3.3V (GPS/QZSS) · 15 µA backup |
| Voltage | 2.0 – 3.63 V main / I/O · 1.8 – 3.63 V backup |
| Interfaces | UART · Active/Passive antenna with supervision |
| Operating Temperature | -40°C to +85°C |
| Package | 24-pin LCC · 12.2 × 16.0 × 2.4 mm |
| Certification | RoHS · REACH · FCC · CE-RED |
Performance Notes
TAU1114 offers the same cost-effective CYNOSURE III Lite platform as TAU1113 in a larger 24-pin LCC package, providing an easy drop-in upgrade for existing tracking and telematics designs.
Cost-effective GNSS positioning module with high sensitivity and fast TTFF, designed for tracking, telematics and navigation.
- > Hot start as fast as 1 s
- > Pin-compatible with TAU1102 / TAU1111
- > Built-in antenna supervisor with protection
- > Free-of-charge A-GNSS service support
Applications
Where TAU1114 Fits Best
Four representative scenarios showing how TAU1114 supports reliable positioning products.
Fleet Management
Reliable positioning for vehicle fleets and logistics
Asset Tracking
Cost-effective tracking of equipment and valuables
Telematics
Stable positioning data for telematics terminals
Bike Sharing
Efficient positioning for shared-mobility operations
Why Choose TAU1114
Advantages at a Glance
What TAU1114 brings to your product — technically and commercially.
Fast 1 s hot start improves user experience after power cycles
Low 15 mA current consumption reduces thermal and battery budgets
Drop-in pin compatibility simplifies migration of existing designs
Proven multi-constellation reception for worldwide deployments
TAU1114 VALUE
Designed for Practical Deployment
The module balances performance, integration simplicity and industrial reliability for scalable product development.
GPS / BDS / GAL / GLO / SBASKey capability
1.5 m CEPPositioning performance
88 ChannelsArchitecture
SMTLCC package, industrial grade
Downloads
Documents & Resources
Download the files you need for product evaluation, hardware development and integration.
Datasheet PDF
Product overview, technical parameters and performance description for TAU1114.
DownloadHardware Design Guide
Reference layout, antenna guidance and suggested design considerations.
RequestIntegration Guide
Step-by-step integration notes for firmware, interfaces and system bring-up.
RequestFAQ
Frequently Asked Questions
Common questions about TAU1114 functionality and typical use cases.
TAU1114 delivers 1.5 m CEP position accuracy in open sky conditions, with SBAS support for regional augmentation.
Both are based on the CYNOSURE III Lite platform. TAU1114 comes in a 24-pin LCC package (12.2 × 16.0 mm) and is pin-compatible with TAU1102/TAU1111, while TAU1113 uses a smaller 18-pin LCC package compatible with TAU1103/TAU1105.
Yes. TAU1114 supports the free-of-charge A-GNSS service for minimal start-up times in the field.
Yes. It is pin-compatible with TAU1102 and TAU1111 as well as many mainstream GNSS modules, making it ideal for upgrading existing designs.
Need a GNSS Module for Your Project?
Contact our engineering team for technical guidance, sampling support and quotation assistance for TAU1114 or other GNSS solutions.