NT
IA
L
ID
E
AM‐1613‐GPS Data Sheet CO
NF
Revision: 1.0 2014.02 2014-2
1
AM‐1613‐GPS Datasheet
General Description The AM‐1613‐GPS is a complete GPS engine module that features super sensitivity, ultra low power and small form factor. The GPS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA NT
IA
L
protocol or custom protocol. Its –161dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The small form factor and low power consumption make the module easy to integrate into portable device like PNDs, mobile phones, cameras and vehicle navigation systems. Applications LBS (Location Based Service) „
PND (Portable Navigation Device) „
Vehicle navigation system „
Mobile phone Features „
„
„
Ultra high sensitivity: ‐161dBm Extremely fast TTFF at low signal level Built in high gain LNA Low power consumption:Max 40mA@3.0V CO
„
Build on high performance, low‐power ARK chipset NF
„
ID
E
„
„
NMEA‐0183 compliant protocol or custom protocol „
Operating voltage: 2.8V to 3.6V „
Operating temperature range:‐40 to 85℃ „
SMD type with stamp holes „
Small form factor: 15.9x13.1x2.6mm „
RoHS compliant (Lead‐free) 2014-2
2
AM‐1613‐GPS Datasheet
Performance Specification Specification Receiver Type L1 frequency band, C/A code, 24‐channels Sensitivity Tracking ‐161dBm Acquisition ‐147dBm,‐155dBm(AGPS) Accuracy Position 5m CEP without SA Velocity 0.1m/s without SA Timing (PPS) 60ns RMS Acquisition Time Cold Start 36s Warm Start 36s Hot Start 1s Re‐Acquisition <1s Power Consumption Tracking 40mA @3V Vcc Acquisition 45mA Sleep/Standby TBD Navigation Data Update Rate 1Hz Operational Limits Altitude Max 18,000m Velocity Max 515m/s Acceleration Less than 4g ID
E
NT
IA
L
Parameter NF
Interfaces Configuration Power Supply: Regulated power for the AM‐1613‐GPS is required. The input voltage Vcc should be 3.3V ±10%, maximum, current is no less than 40mA. Suitable decoupling must be provided by external CO
decoupling circuitry. UART Ports: The module supports two full duplex serial channels UART All serial connections are at 3V CMOS logic levels, if need different voltage levels, use appropriate level shifters. The baud rate of both serial ports are fully programmable, the data format is however fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight data bits and one stop bit, no other data formats are supported, LSB is sent first. The modules default baud rate is set up 9600bps, however, the user can change the default baud rate to any value from 4800 bps to 115kbps. UART is used e.g. for booting and NMEA interface. 2014-2
3
AM‐1613‐GPS Datasheet
Boot Mode Select: The pin Boot is used to set the boot mode of the AM‐1613‐GPS GPS Receiver. By default the receiver will boot in normal GPS mode. If there are corrupted data in FLASH, it may be necessary to boot the receiver in test mode by pulling Boot pin high during a power cycle or hardware reset to update the firmware. Antenna: The AM‐1613‐GPS GPS receiver is designed for supporting the active antenna or passive NT
IA
L
antenna connected with pin RF_IN. The gain of active antenna should be no less than 15dB. The maximum NF
ID
E
noise figure should be no more than 2.5dB and output impedance is at 50 Ohm. CO
Backup Battery Power: In case of a power failure on pin Vcc, real‐time clock and backup RAM are supplied through pin VBAT. This enables the AM‐1613‐GPS GPS Receiver to recover from power failure with either a hot start or a warm start (depending on the duration of Vcc outage). If no Backup Battery is connected, the receiver performs a cold start upon powered up. 2014-2
4
AM‐1613‐GPS Datasheet
Pin Description Pin No. Pin name I/O Description RF_IN I GPS Signal Input 2 GND G Ground 3 GND G Ground 4 GND G Ground 5 V_BAT I RTC Battery Input 6 GND G Ground 7 BOOT I Boot Mode 8 GND G Ground 9 GND G Ground 10 GND G Ground 11 Vcc I Module Power Supply 12 GND G Ground 13 NC 14 GND G Ground 15 GND G Ground 16 NC 17 GND G Ground 18 GPIO1 I Genre Purpose Input Output ID
E
NT
IA
L
1 CO
NF
No connection 2014-2
No connection 19 GND G Ground 20 PPS O Time Pulse(1 PPS) Leave Open if not used 21 GND G Ground 22 GND G Ground 23 GND G Ground 24 GND G Ground 25 NC 26 GND G No connection Ground 5
AM‐1613‐GPS Datasheet
NC No connection 28 GND G Ground 29 GND G Ground 30 TXA O UART Serial Data Output ,Pull up (75KΩ) if not used 31 RXA I UART Serial Data Input ,Pull up (75KΩ) if not used 32 RXB I UART Serial Data Input ,Pull up (75KΩ) if not used 33 GND G Ground 34 TXB O UART Serial Data Output ,Pull up (75KΩ) if not used 35 GND G Ground 36 GND G Ground CO
NF
ID
E
Pin Assignment NT
IA
L
27 Figure2:AM‐1613‐GPS Pin Package 2014-2
6
AM‐1613‐GPS Datasheet
NT
IA
L
Mechanical Specification Figure3:AM‐1613‐GPS Dimensions Parameter ID
E
Absolute Maximum Rating Symbol Min Max Units Vcc 2.8 3,6 V Input Pin Voltage I/O RST ‐0.3 3.6 V Input Pin Voltage I/O TXA, RXA ‐0.3 3.6 V VBAT 2.0 3.6 V Tstg ‐40 125 °C Tpeak 260 °C 95 % Power Supply Power Supply Volt. NF
Input Pins Backup Battery CO
Environment Storage Temperature Peak Reflow Soldering Temperature Humidity Note: Absolute maximum ratings are stress ratings only, and functional operation at the maxims is not guaranteed. Stress beyond the limits specified in this table may affect device reliability or cause permanent damage to the device. For functional operating conditions, refer to the operating conditions tables as follow. 2014-2
7
AM‐1613‐GPS Datasheet
Operating Conditions Software Protocol NMEA 0183 Protocol Parameter Symbol Condition Min Typ Max Units 2.8 3.3 3.6 V 40 mV Vcc Power supply voltage ripple Vcc_PP Vcc=3.0V Consumption current Icc Vcc=3.0V 40 45 mA Input high voltage VIH 0.7xVcc Vcc+1.0 V Input low voltage VIL ‐0.7 0.3xVcc V 0.8xVcc Vcc V 0 0.2xVcc V ‐40 85 ℃ Output high voltage VOH Output low voltage VOL Operating temperature Topr NT
IA
L
Power supply voltage ID
E
The NMEA protocol is an ASCII‐based protocol, Records start with a $ and with carriage return/line feed. GPS specific messages all start with $GPxxx where xxx is a three‐letter identifier of the message data that follows. NMEA messages have a checksum, which allows detection of corrupted data transfers. The AM‐1613‐GPS supports the following NMEA‐0183 messages: GGA, GLL, GSA, GSV, RMC and VTG Table1:NMEA‐0183 Output Messages DESCRIPTION NF
NMEA Record Global positioning system fixed data GLL Geographic position—latitude/longitude GSA GNSS DOP and active satellites CO
GGA GSV GNSS satellites in view RMC Recommended minimum specific GNSS data VTG Course over ground and ground speed 2014-2
8
AM‐1613‐GPS Datasheet
GGA‐Global Positioning System Fixed Data Table2 contains the values of the following example: $GPGGA, 161229.487,3723.2475,N, 12158.3416,W, 1,07,1.0,9.0,M.0000*18 Table2:GGA Data Format Example Message ID $GPGGA UTC Position 161229.487 Latitude 3723.2457 N/S indicator N Longitude 12158.3416 W Position Fix Indicator 1 Satellites Used 07 Description GGA protocol header hhmmss.sss ddmm.mmmm N=north or S=south dddmm.mmmm E=east or W=west See Table 2‐1 Range 0 to 12 ID
E
E/W Indicator Units NT
IA
L
Name 1.0 9.0 meters M meters meters M meters second Null fields when DGPS is not Used Diff.Ref.Station ID 0000 Checksum *18 End of message termination HDOP MSL Altitude Units Units NF
Geoids Separation CO
Age of Diff.Corr. <CR> <LF> Horizontal Dilution of Precision Table2‐1:Position Fix Indicators Value 2014-2
Description 0 Fix not available or invalid 1 GPS SPS Mode, fix valid 2 Differential GPS, SPS Mode, fix valid 3 GPS PPS Mode, fix valid 9
AM‐1613‐GPS Datasheet
GLL‐Geographic Position–Latitude/Longitude Table3 contains the values of the following example: $GPGLL , 3723.2475, N,12158.3416, W,161229.487, A*2C. Table3:GLL Data Format Example Message ID $GPGLL Latitude 3723.2475 N/S Indicator Longitude Units N 12158.3416 E/W Indicator W UTC Position 161229.487 Status A *2C <CR> <LF> GLL protocol header ddmm.mmmm N=north or S=south dddmm.mmmm E=east or W=west hhmmss.sss A=data valid or V=data not valid End of message temination ID
E
Checksum Description NT
IA
L
Name GSA‐GNSS DOP and Active Satellites Table4 contains the values of the following example: NF
$GPGSA , A, 3, 07, 02, 26,27, 09, 04,15, , , , , , 1.8,1.0,1.5*33. Table4:GSA Data Format Example Units Message $GPGSA GSA protocol header Mode 1 A See Table 4‐2 Mode 2 3 See Table 4‐1 Satellite Used 07 Sv on Channel 1 Satellite Used 02 Sv on Channel 2 … … … Sv on Channel 12 PDOP 1.8 Position Dilution of Precision HDOP 1.0 Horizontal Dilution of Precision VDOP 1.5 Vertical Dilution of Precision CO
Name Satellite Used 2014-2
10
Description AM‐1613‐GPS Datasheet
Checksum *33 <CR> <LF> End of message termination Value Description 1 Fix not available 2 2D 3 NT
IA
L
Table4‐1:Mode1 3D Table4‐2:Mode2 Value Description M Manual‐forced to operate in 2D or 3D mode A Automatic‐allowed to automatically switch 2D/3D GSV‐GNSS Satellites in View Table5 contains the values of the following example: ID
E
$GPGSV , 2, 1, 07, 07, 79,048, 42, 02, 51,062, 43, 26, 36,256, 42, 27, 27, 138,42*71 $GPGSV, 2, 2, 07, 09, 23,313, 42, 04, 19, 159, 41, 15,12,041, 42*41. Table5:GGA Data Format Name Example Units $GPGSV GSV protocol header 2 Range 1 to 3 Message Number 1 Range 1 to 3 Satellites in View 07 Satellite ID 07 Channel 1(Range 1 to 32) Elevation 79 degrees Channel 1(Maximum 90) Azinmuth 048 degrees Channel 1(True, Range 0 to 359) SNR(C/NO) 42 dBHz … Satellite ID 27 Channel 4(Range 1 to 32) Elevation 27 degrees Channel 4(Maximum 90) Azimuth 138 degrees Channel 4(True, Range 0 to 359) SNR(C/NO) 42 dBHz Checksum *71 <CR> <LF> End of message termination Message ID CO
NF
Number of Message … Description Range 0 to 99,null when not tracking Range 0 to 99, null when not tracking Depending on the number of satellites tracked multiple messages of GSV data may be required. 2014-2
11
AM‐1613‐GPS Datasheet
RMC‐Recommended Minimum Specific GNS Data Table6 contains the values of the following example: $GPRMC, 161229.487, A, 3723.2475, N, 12158.3416, W, 0.13,309.62, 120598,, *10 Table6:RMC Data Format Example Message ID $GPRMC UTS Position 161229.487 Status Units A Latitude 3723.2475 N/S Indicator N Longitude 12158.3416 E/W Indicator W Speed Over Ground 0.13 Ground Date Magnetic variation Checksum <CR> <LF> RMC protocol header hhmmss.sss A=data valid or V=data not valid ddmm.mmmm N=north or S=south dddmm.mmmm E=east or W=west Knots 309.62 Degrees True 120598 dummy Degrees *10 End of message termination ID
E
Course Over Description NT
IA
L
Name E=east or W=west NF
VTG‐Course Over Ground and Ground Speed Table7contains the values of the following example: $GPVTG, 309.62, T, M, 0.13, N, 0.2, K*6E CO
Table7:VTG Data Format Name Example Units Message ID $GPVTG Course 309.62 Degrees Reference T Course Degrees M Speed 0.13 Knots Units N Speed 0.2 Km/hr Reference 2014-2
Description VTG protocol header Measured heading True Measured heading Magnetic Measured horizontal speed Knots Measured horizontal speed 12
AM‐1613‐GPS Datasheet
Units K Kilometer per hour Checksum *6E <CR> <LF> End of message termination ID
E
NT
IA
L
Manufacturing Process Recommendations Note:The final soldering temperature chosen at the factory depends on additional external factors like NF
choice of soldering paste,size,thickness and properties of the baseboard,etc. Exceeding the maximum soldering temperature in the recommended soldering profile may permanently damage the module. CO
2014-2
13
AM‐1613‐GPS Datasheet