2
1. Introduction
1.1. Overview
GPS module ZX4125/ZX4125P (patch on top) is a high sensitivity ultra low
power consumption cost efficient, compact size; plug & play GPS module board
designed for a broad spectrum of OEM system applications. The GPS module
receiver will track up to 16 satellites at a time while providing fast time-to-first-fix
and 1Hz navigation updates. Its far reaching capability meets the sensitivity &
accuracy requirements of car navigation as well as other location-based applications,
such as AVL system. Handheld navigator, PDA, pocket PC, or any battery operated
navigation system.
The ZX4125/ZX4125P design utilizes the latest surface mount technology and
high level circuit integration to achieve superior performance while minimizing
dimension and power consumption. This hardware capability combined with software
intelligence makes the board easy to be integrated and used in all kinds of navigation
applications or products. The module communicates with application system via
RS232 (TTL level) with NMEA0183 protocol.
1.2. Main Feature
l Built-in high performance NEMERIX chipset.
l Average Cold Start in 60 seconds.
l Ultra Low power consumption.( ZX4125 27mA typ @ 3.3V )
l 16 channels “All-in-View” tracking.
l On chip 4Mb flash memory.
l TTL level serial port for GPS receiver command message Interface.
l Compact Board Size
ZX4125 1.043”x1.043”x0.11”(26.5x26.5x3.0mm)
ZX4125P-4 1.043”x1.043”x0.34” (26.5x26.5x8.7mm)
ZX4125P-2 1.043”x1.043”x0.26” (26.5x26.5x6.7mm)
For easy integration into hand-held device.
l Support Standard NMEA-0183 V3.0
l Option Accurate 1PPS Output Signal Aligned with GPS Timing
l Multi-path Mitigation Hardware
l Optimum clock drift adjustment
l External antenna open/short detector
l Support dual antenna with built-in auto-detect RF switch (ZX4125P)
