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Version: 1.0
Release date: September 8, 2014
Specifications are subject to change without notice.
MT3332 GNSS Host-Based Solution
Technical Brief
© 2014 MediaTek Inc.
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction of this information in whole or in part is strictly prohibited.
MT3332
GNSS Host-Based Solution Technical Brief
Table of Contents
1 System Overview .................................................................................................. 4
1.1 General descriptions ................................................................................................................. 4
1.2 Features ...................................................................................................................................... 5
2 Pin Assignment and Descriptions ......................................................................... 7
2.1 Pin assignment (top view) ......................................................................................................... 7
2.2 Pin descriptions ......................................................................................................................... 8
3 Electrical Characteristics .................................................................................... 13
3.1 DC characteristics .................................................................................................................... 13
3.2 Analog related characteristics ................................................................................................. 15
3.3 RF related characteristics ........................................................................................................ 17
4 Interface Characteristics .................................................................................... 18
4.1 RS-232 interface timing ........................................................................................................... 18
1.1 SPI interface timing ................................................................................................................. 18
1.2 I2C interface timing ................................................................................................................. 19
5 Package Description ............................................................................................ 21
5.1 Ordering information............................................................................................................... 21
5.2 Top mark................................................................................................................................... 21
5.3 Package dimensions ................................................................................................................ 22
© 2014 MediaTek Inc. Page 2 of 24
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MT3332
GNSS Host-Based Solution Technical Brief
Lists of Figures
Figure 1 Pin assignment (top view) .............................................................................................................. 7
Figure 2 Timing diagram of RS-232 interface ........................................................................................... 18
Figure 3 Timing diagram of SPI interface .................................................................................................. 19
Figure 4 Timing diagram of HOST I2C interface ..................................................................................... 20
Figure 5 Packaging dimensions diagram .................................................................................................. 22
Figure 6 Packaging dimensions tables ...................................................................................................... 23
© 2014 MediaTek Inc. Page 3 of 24
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MT3332
GNSS Host-Based Solution Technical Brief
1 System Overview
1.1 General descriptions
MT3332 is a high-performance single-chip multi-GNSS solution which includes on-chip CMOS RF
and digital baseband. It is able to achieve the industry’s highest level of sensitivity, accuracy and
Time-to-First-Fix (TTFF) with the lowest power consumption in a small-footprint lead-free package.
Its small footprint and minimal BOM requirement provide significant reductions in the design,
manufacturing and testing resource required for portable applications.
With built-in LNA to reach total receiver chain NF to 2.2 dB, you can eliminate antenna requirement
and do not need external LNA. With its on-chip image-rejection mixer, the spec of external SAW filter
is alleviated. With an on-chip automatic center frequency calibration band pass filter, an external filter
is not required. The on-chip power management design allows MT3332 to be easily integrated into
your system without extra voltage regulator. With both linear and a highly efficient switching type
regulator embedded, MT3332 allows direct battery connection and does not need any external LDO,
which gives customers plenty of choices for the application circuit.
Up to 12 multi-tone active interference cancellers (ISSCC2011 award) offer you more flexibility in
system design. The integrated PLL with Voltage Controlled Oscillator (VCO) provides excellent phase
noise performance and fast locking time. A real-time clock is also provided to accelerate acquisition at
the system restart-up.
MT3332 acquires and tracks satellites in the shortest time even at indoor signal levels. MT3332
supports various location and navigation applications, including autonomous GPS, GLONASS,
GALILEO, BEIDOU (after ICD released), SBAS ranging (WAAS, EGNOS, GAGAN, and MSAS), QZSS,
DGPS (RTCM) and AGPS.
Through MT3332's excellent low-power consumption characteristic (acquisition 36 mW, track 26
mW), while using power sensitive devices, especially portable applications, you will not need to worry
about the operating time anymore and can have more fun. Combined with many advanced features
including AlwaysLocate
TM
, HotStill
TM
and EPO
TM
function, MT3332 provides always-on position with
minimal average power consumption. The great features provide you supreme experiences for
portable applications such as DSC, cellular phone, PMP, and gaming devices.
© 2014 MediaTek Inc. Page 4 of 24
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
MT3332
GNSS Host-Based Solution Technical Brief
1.2 Features
• Specifications
o GPS/GLONASS/GALILEO/BEID
OU (after ICD released) receiver
o Supports multi-GNSS incl. QZSS,
SBAS ranging
o Supports
WAAS/EGNOS/MSAS/GAGAN
o 12 multi-tone active interference
cancellers (ISSCC2011 award)
o RTCM ready
o Indoor and outdoor multi-path
detection and compensation
o Supports FCC E911 compliance
and A-GPS
o Max. fixed update rate up to 5 Hz
• Advanced software features
o AlwaysLocate
TM
advanced location
awareness technology
o EPO
TM
/HotStill
TM
orbit prediction
• Reference oscillator
o TCXO
Frequency: 16.368 MHz,
12.6 ~ 40.0 MHz
Frequency variation: ±2.5
ppm
o Crystal
Frequency: 26 MHz, 12.6
~ 40.0 MHz
Frequency accuracy: ±10
ppm
• RF configuration
o SoC, integrated in single chip with
CMOS process
• Pulse-per-second (PPS) GPS time
reference
o Adjustable duty cycle
o Typical accuracy: ±10 ns
• Power scheme
o A 1.8 volts SMPS build-in SOC
o Direct lithium battery connection
(2.8 ~ 4.3 volts)
o Self build 1.1 volts RTC LDO, 1.1
volts core LDO, and 2.8 volts
TCXO LDO
• Build-in reset controller
o Does not need of external reset
control IC
• Internal real-time clock (RTC)
o 32.768 KHz ± 20 ppm crystal
o 1.1 volts RTC clock output
o Supports external pin to wake up
MT3332
• Backup mode
o A Force_On pin to ease backup
mode application circuit.
• Serial interface
o 3 UARTs
o SPI
o I2C
o GPIO interface (up to 15 pins)
• NMEA
o NMEA 0183 standard V3.01 and
backward compliance
o Supports 219 different data
• Superior sensitivities
o Acquisition: -148 dBm (cold) /
-163 dBm (hot)
o Tracking: -165 dBm
• Ultra-low power consumption
(GPS+GLONASS)
M
© 2014 MediaTek Inc. Page 5 of 24
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
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