RGPSM202 Semtech, RGPSM202 Datasheet - Page 9

• Manufacturer Part Number: RGPSM202
• Description: MODULE SLIM GPS RECEIVER LP
• Manufacturer: Semtech

Specifications of RGPSM202

• Frequency: 1.575GHz
• Sensitivity: -143dBm
• Modulation Or Protocol: GPS
• Applications: Automotive, Laptop, PDA
• Current - Receiving: 25mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 3 V ~ 3.65 V
• Package / Case: Module
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Operating Temperature: -
• Memory Size: -
• Data Rate - Maximum: -

Turning the main supply VCC on and off will switch the module into Active or Power-Down modes (see Figure 5 above).
When turned on, after the internal power-up sequence, the RGPSM202 will send the NMEA sentences through its
TXDA pin. In this configuration, the serial port settings, the type of NMEA sentences, and the output rate are those
defined in Flash in the Default Parameters Table (see Section 6 below). No other initialization is required.
5.2.2
This is a slightly more elaborate way to operate the RGPSM202. Compared to Paragraph 5.2.1, the module can receive
command/data ASCII character strings from its RXDA serial line. In this case the RXDA line should be connected to a
host, microcontroller, or any other device that can send NMEA strings through a UART.
Turning the main supply VCC on and off will switch the module in Active or Power-Down modes (see Figure 5 above).
When turned on, after the internal power-up sequence, the RGPSM202 will send the NMEA sentences through its
TXDA pin. In this configuration, the serial port settings, the type of NMEA sentences, and the output rate are those
defined in Flash in the Default Parameters Table (see Section below). These parameters can then be temporarily
modified by sending the appropriate proprietary NMEA commands defined in Section 5.4 below. Note these temporary
settings will be lost the next time the main supply VCC is turned off.
© Semtech 2005
Pin
7
8
10, 11, 12, 13, 15
14
16
18
19
22
23
24
Pin
5
Operating the GPS receiver in a basic “serial, bidirectional” configuration
Name
RXDA
Table 5 - Basic data interface to operate the receiver in “serial, bidirectional” configuration
Table 4 - Basic data interface to operate the receiver in “stand-alone” configuration
Name
TXDA
VCC
RFGND
RF IN
DELPOSN
VBKP
PPS
POSFIX (BT1)
ALMRDY (BT0)
BTM
Connection
To the host, microcontroller, or other device that send the NMEA strings
Other pins similar to Table 4 above
Connection
To the host interface, microcontroller, or other device that
read the NMEA strings
To main power supply
RF Ground
To active GPS antenna
To VCC or N.C.
RTC Battery back-up
N.C.
N.C.
N.C.
To VCC or N.C.
9
SlimGPS™ Receiver
RGPSM202
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