备注：该模块通常是手机生产厂使用，一般个人改装手机有

很大难度：如空间不够，外围电路，天线位置，定义格式，

配套软件，相关协议等）

技术指标：

产品型号：	MT3318
规格：	10.5 X 10.4 X  2.0mm  GPS
适用机型：	手机，PDA，车载，个人跟踪器，手表型等GPS生产商及开发商
产品说明：	接收机类型　　 32信道L1频段，C/A码 定位精度　　　　　　　　5 m CEP 　　　　　　DGPS / SBAS 10m CEP 启动时间　　　　热启动 1.6 sec 　　　　　　　　温启动 28 sec 　　　　　　　　冷启动 36 sec 　　　　　　 灵敏度 　　　　　　　　捕获灵敏度 -142 dBm 　　　　　　　　追踪灵敏度 -158 dBm 环境温度                -30度-- +85度 低功耗                     33-55mA 双通讯接口

Using MTK MT3318, a high performance of RF, baseband, and

flash single chip.

Dimension is ultra-small size of 10.5mmx10.4mmx2.0mm.

Support GPS L1 band C/A code, and 32 channels.

High indoor sensitivity: -158dBm (tracking).

Fast TTFF: typ. 1.6s (hot start) and typ. 36s (cold start)

Low power consumption: typ. 55mA (acquisition) and typ.

30mA (tracking).

Position accuracy: < 5m (CEP 95%) and < 10m indoors.

Support serial interface: two UARTs and GPIO/SPI.

Wide operating temperature range: -30~+85℃.

RoHS compliant.

General Specification

Frequency Range GPS L1 band (C/A code)

Supply Voltage 3.3~6.5V

55mA (acquisition)

Supply Current

30mA (tracking)

Sensitivity

-146dBm (acquisition)

-158dBm (tracking)

TTFF(typ.)

1.6s (hot start)

35s (warm start)

36s (cold start)

Position Accuracy <5m (outdoor)

<10m (indoor)

Update Rate Once per second

Operating Temperature -30 ~+85℃

Dimension 10.5mmx10.4mmx1.9mm

Pin No. Name I/O Type Description

1 AGND P Ground

2 VIN_3V3 P System power input

3 GPS_EN P To enable 3.3V of system

4 VRTC_1V2 P Real time clock power input

5 AGND P Ground

6 AGND P Ground

7 AGND P Ground

8 RTCCLK I Real time clock 32kHz clock input

9 RTCCLK_O O Real time clock 32kHz clock output

10 TX1 O Serial output for UART1 (debug)

11 RX1 I Serial input for UART1 (debug)

12 STANDBY I Standby mode for system interface

13 TX0 O Serial output for UART0 (GPS)

14 RX0 I Serial input for UART0 (GPS)

15 PPS IO 1 PPS timemark output

16 HRST# I System reset for system interface, active low

17 GPIO[6] IO SPI data output, share with GPIO6

18 GPIO[8] IO SPI clock, share with GPIO8

19 GPIO[5] IO SPI slave select 0, active low, share with GPIO5

20 GPIO[7] IO SPI data input, share with GPIO7

21 AGND P Ground

22 AGND P Ground

23 AGND P Ground

24 AGND P Ground

25 AGND P Ground

26 AGND P Ground

27 AGND P Ground

28 RF_IN I LNA RF input (with VCC)

Note:

1. TX1, RX1, STANDBY, PPS, HRST#, GPIO[5, 6, 7, 8] are used for A-GPS.

Please contact with us to deal with A-GPS application.