NEO/LEA-M8T series
u-blox M8 GNSS timing modules
Market leading acquisition and tracking sensitivity
• Concurrent reception of GPS/QZSS, GLONASS, BeiDou, and Galileo
• Market leading acquisition and tracking sensitivity
• Optimized accuracy and availability with survey-in and single-satellite timing
• Minimized power consumption with low duty-cycle operation
• Maximized reliability with integrity monitoring and alarms
• Backward compatible with LEA-5T, LEA-6T and NEO-6T
Product Summary
UBX-16000801 - R06
12.2 × 16.0 × 2.4 mm 17.0 × 22.4 × 2.4 mm
Product description
The NEO-M8T and LEA-M8T concurrent GNSS modules deliv-
er high integrity, precision timing in demanding applications
world-wide. Support for BeiDou, GLONASS and Galileo con-
stellations enables compliance with national requirements.
Enhanced sensitivity and concurrent constellation reception
extend coverage and integrity to challenging signal environ-
ments. Survey-in and xed-position navigation reduce timing
jitter, even at low signal levels, and enable synchronization to
be maintained with as few as one single satellite in view. Sup-
port for low duty cycle operation reduces power consumption
for battery-powered applications.
u-blox timing products include timing integrity measures
with Receiver Autonomous Integrity Monitoring (RAIM) and
continuous phase uncertainty estimation. They feature high
dynamic range radios with both analog and digital interference
mitigation, supporting applications in wireless communica-
tions equipment.
The M8T timing modules are delivered in u-blox’s established
LEA and NEO form-factors with standard pin-out, allowing
ready migration from previous product generations.
u-blox timing products can make use of u-blox AssistNow or
industry-standard aiding data. This reduces the time-to-rst-
x and delivers exceptional acquisition sensitivity, even on
rst installation before precise location, time or frequency are
known.
u-blox M8 modules use GNSS chips qualied according to
AEC-Q100, are manufactured in ISO/TS 16949 certied sites,
and are fully tested on a system level. Qualication tests are
performed as stipulated in the ISO16750 standard: “Road ve-
hicles – Environmental conditions and testing for electrical and
electronic equipment”.
T = TCXO
NEO-M8T
LEA-M8T
Grade
Automotive
Professional
• •
Standard
GNSS
GPS / QZSS
• •
GLONASS
• •
Galileo
• •
BeiDou
• •
Number of concurrent GNSS
3 3
Interfaces
UART
1 1
USB
1 1
SPI
1 1
DDC (I
2
C compliant)
1 1
Features
Programmable (Flash)
• •
Data logging
• •
Carrier phase output
• •
Additional SAW
• •
Additional LNA
•
RTC crystal
• •
Oscillator
T
T
Survey-in and xed mode
• •
Timepulse
2 2
Power supply
2.7 V – 3.6 V
• •
Standard
Professional
Automotive
NEO/LEA-M8T series
Features
Receiver type 72-channel u-blox M8 engine
GPS/QZSS L1 C/A, GLONASS L10F, BeiDou B1
SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
Galileo E1B/C
Nav. update rate Concurrent GNSS: up to 4 Hz
Position accuracy 2.5 m CEP (Autonomous)
Acquisition
Cold starts:
Aided cold starts:
GPS & GLONASS GPS & BeiDou
25 s 28 s
2 s 2 s
Sensitivity
Tracking & Nav:
Cold start (aided):
(autonomous):
Reacquisition:
–167 dBm –166 dBm
–157 dBm –157 dBm
–148 dBm –148 dBm
–160 dBm –160 dBm
Assistance GNSS AssistNow GNSS Online
AssistNow GNSS Oine (up to 35 days)
AssistNow Autonomous (up to 6 days)
OMA SUPL & 3GPP compliant
Oscillator TCXO
RTC crystal Built-in
Noise gure On-chip LNA (LEA-M8T)
Extra LNA for passive antenna (NEO-M8T)
Anti jamming Active CW detection and removal;
On-board SAW band pass lter
Memory Internal SQI ash for Firmware update
Supported
antennas
Active and passive
Features - Timing
Timing accuracy Clear sky: ≤ 20 ns
Time-pulse
frequency
0.25 Hz – 10 MHz
Time-pulse jitter ±11 ns
Time-mark
resolution
21 ns
Integrity reports RAIM active, phase uncertainty
time-pulse rate/duty-cycle
Electrical data
Supply voltage 2.7 V to 3.6 V
Power
consumption
15 µA (Battery backup, NEO-M8T))
30 µA (Software backup, NEO-M8T)
32 mA @ 3.0 V (Operational, NEO-M8T)
28 mA @ 3.0 V (Operational, LEA-M8T)
Backup Supply 1.4 V to 3.6 V
Interfaces
Serial interfaces SPI or UART and DDC (I
2
C compliant)
USB V2.0 full speed 12 Mbit/s
Protocols NMEA, UBX binary, RTCM
Time-pulse outputs 2
Time-mark inputs 2
Package
NEO-M8T: 24 pin LCC (Leadless Chip Carrier): 12.2 x 16.0 x 2.4 mm, 1.6 g
LEA-M8T: 28 pin LCC (Leadless Chip Carrier): 17.0 x 22.4 x 2.4 mm, 2.6 g
Features – Raw data and IMES
Measurement data GPS, GLONASS, BeiDou, SBAS and QZSS
(Carrier phase; Code phase & pseudorange;
Doppler)
Message data GPS, GLONASS, BeiDou, SBAS, QZSS L1S and
IMES beacons (50/250 bps auto-baud)
Features – Power management
Power-save modes On/o low duty-cycle
O control Hardware, message interface
On control Hardware, wake-on UART activity,
Timer (using low power RTC)
Automatic on/o with congurable period (GPS only)
Features – Antenna management
NEO-M8T External with logic-level antenna switching
output, ltered continuous supply.
LEA-M8T Internal antenna bias supply with switching,
over-current protection and alarm. Optional
input for external open-circuit detection.
Environmental data, quality & reliability
Operating temp. –40 °C to +85 °C
Storage temp. –40 °C to +85 °C
RoHS compliant (lead-free)
Qualication according to ISO 16750
Manufactured in ISO/TS 16949 certied production sites
Uses u-blox M8 chips qualied according to AEC-Q100
Support products
These u-blox M8 support tools are for getting familiar with u-blox
M8 positioning technology, evaluating functionality, and visualizing
GNSS performance.
EVK-M8T u-blox M8 Timing GNSS Evaluation Kit
Product variants
NEO-M8T u-blox M8 GNSS LCC module in NEO form
factor, Timing, TCXO, ash, SAW, LNA
LEA-M8T u-blox M8 GNSS LCC module in LEA form
factor, Timing, TCXO, ash, SAW
UBX-16000801 - R06
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Further information
For contact information, see www.u-blox.com / contact-us.
For more product details and ordering information, see the product
data sheet.