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参数资料
| 型号： | GM-205810-000 |
| 厂商： | DeLorme |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | MODULE GPS RCVR GPS2058 |
| 产品目录绘图： | GM-205810-000 |
| 标准包装： | 1 |
| 频率： | 1575.42MHz |
| 数据传输率 - 最大： | 57.6 kbps |
| 调制或协议： | GPS |
| 应用： | GPS 接收器 |
| 电流 - 接收： | 50mA |
| 数据接口： | PCB，表面贴装 |
| 存储容量： | 16kB 闪存 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 40 引脚 |
| 包装： | 剪切带 (CT) |
| 其它名称： | GM-205810-000CT |
Minimum Application Connectivity
The following describes the minimum GPS2058 GPS receiver module connectivity necessary to obtain a position fix with passive
antenna and host connection.
The Antenna connects to the module on the RF-input pin. It is very important that this connection maintains a 50 ohm imped -
ance with minimal discontinuities to maximize the energy transfer from the antenna to the module RF input. Both RF ground
pins (38 and 40) must be isolated from digital ground through a 100nH inductor to eliminate high frequency loop currents and
preventing self jamming from digital noise injected into the RF section or RF noise from being introduced to the digital section.
Refer to our application note titled ‘GPS Module Antenna and RF Design Guidelines’ for additional discussion and layout recom-
mendations.
Power is supplied to the module by connecting a 3.3V digital supply to pin 2. Use 0.1uF decoupling cap as close to the module
pin as possible. Pin 1 is digital ground, connect to ground plane as close to module as possible. For reducing the supply current
when an additional 1.8V supply is available, refer to the section titled “Power Supply Options” in this document.
To ensure that module powers up in the correct state, nRESET (pin 6) must be tied to 3.3V thru a 10Kohm resistor to prevent
accidental receiver reset. The WAKEUP input (pin 5) must be tied to 3.3V thru a 10Kohm resistor and the nSTDBYI input (pin 4)
must also be tied to 3.3V thru a 10K ohm resistor to hold the receiver out of standby mode. A 0.1uF cap to ground is also tied
to the nSTDBYI input to delay the ramp up to 3.3V, which brings the pin biasing up in the right sequence.
The UART0 NMEA connection is a CMOS level TTL signal level. Pin 31 is the transmit output pin for sending the NMEA data
FROM the module TO the host, and pin 30 is the receive input for sending commands FROM the host TO the Module.
The VADC input (pin 11) should also be tied to the 3.3V supply to properly bias the device. A decoupling capacitor of 0.1uF is
used as close to the pin as possible.
All other pins may remain unconnected.
Page 7
相关PDF资料 |
PDF描述 |
|---|---|
| GP1FA313RZ0F | RECEIVER FIBER OPTIC 15.5MBPS |
| GP1FA313TZ0F | TRANSMITTER FIBER OPTIC 15.5MBPS |
| GP1FAV30RK0F | RECEIVER FIBER OPTIC 15.5MBPS |
| GP1FAV30TK0F | TRANSMITTER FIBER OPTIC 15.5MBPS |
| GP1FAV31RK0F | RECEIVER FIBER OPTIC 15.5MBPS |
相关代理商/技术参数 |
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