MT3337

Overview

MediaTek MT3337E is an All-in-One GPS system on a chip (SoC). Suitable for a wide range of mobile, automotive, timing, personal tracker and industrial applications. MT3337E features high tracking sensitivity for enhanced performance in dense urban environments.


MT3337E requires just nine passive external components, and is pin-compatible with MediaTek MT3339 and MT3333 for flexibility to develop multiple tiers of mobile device, while minimizing duplication in hardware development.

Key features

  • -165dBm tracking sensitivity

  • Supports GPS and QZSS

With built-in LNA to reach total receiver chain NF to 2.2 dB, you can eliminate the external LNA. With its on-chip image-rejection mixer, the external SAW filter is also eliminated.


Combined with many advanced features including EPO™ and logger functions, the MT3337E provides always-on position with minimal power consumption. These features are excellent for portable applications such as DSC, cellular phone, PMP, and gaming devices.

Specifications

  • 22 tracking / 66 acquisition-channel GPS receiver

  • Supports up to 210 PRN channels

  • Supports multi-GNSS including QZSS and SBAS ranging

  • Supports WAAS/EGNOS/MSAS/GAGAN

  • 12 multi-tone active interference cancellers (with ISSCC2011 award)

  • RTCM ready

  • Indoor and outdoor multi-path detection and compensation

  • Supports FCC E911 compliance and AGPS

  • Maximum fixed update rate up to 10 Hz


ARM7EJ-S CPU

  • Up to 98 MHz processor clock

  • Dynamic clock rate control


Package

  • VFBGA: 4.3 mm x 4.3 mm, 57 balls, 0.5 mm pitch


Advanced software features

  • EPO™ orbit prediction

  • Supports logger function


RF configuration

  • 4-bit IF signal

  • SoC, integrated in single chip with CMOS process


Reference oscillator

  • TCXO Frequency 16.368 MHz, 12.6 ~ 40 MHz

  • TCXO Frequency variation: ±2.0 ppm

  • Crystal Frequency: 26 MHz, 12.6 ~ 40.0 MHz

  • Crystal Frequency accuracy: ±10 ppm


Pulse-per-second (PPS) GPS time reference

  • Adjustable duty cycle

  • Typical accuracy: ±10 ns

Power scheme

  • 1.8V SMPS built-in SoC

  • Direct lithium battery connection (2.8V ~ 4.3V)

  • Self build 1.1V RTC LDO, 1.1V core LDO, and 2.8V TCXO LSO


Built-in reset controller

  • No external reset control IC needed


Internal real-time clock (RTC)

  • 32.768KHz ±20 ppm crystal

  • 1.2 volts RTC output


Serial interface

  • UART: 4800/9600/38400/115200 bps

  • GPIO interface (up to 16 pins)


NMEA

  • NMEA 0183 standard V3.01 and backward compliance

  • Supports 219 different data


Sensitivities

  • Acquisition: -148 dBm (cold) / -163 dBm(hot)

  • Tracking: -165 dBm


Power consumption (GPS+GLONASS)

  • Acquisition: 25 mW

  • Tracking: 18 mW


Slim hardware design

  • 52 mm² solution footprint with all software features inside

  • 9 passive external components


Compatibility

  • Pin-to-pin compatible with MT3337/MT3333