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EZGPM01

型号：

EZGPM01

描述：

GPS接收器[ GPS RECEIVER ]

品牌：

ETC[ ETC ]

页数：

10 页

PDF大小：

388 K

下载PDF手册
EZGPM01 data sheet  
Device features  
Fully self-contained 12 channel GPS  
receiver  
Fully EMI shielded  
SiRFstar™ IIe/LP architecture  
•
•
GRF2i/LP RF front-end IC  
GSP2e/LP GPS Engine with  
Integrated Processor  
SBAS(Satellite Based Augmentation  
System) support  
Fast time-to-first-fix  
8Mbit Flash memory  
Built-in Low-noise amplifier  
Advanced low power modes  
Operating Voltage 3.3V  
Battery supply pin for internal backup  
memory and real time clock  
Passive and active antenna support  
Active antenna bias supply voltage pin  
Active antenna overcurrent protection  
Industrial operating temperature range  
-40ºC …85ºC  
EZGPM01  
GPS RECEIVER  
Product Information Data Sheet  
MARCH 2004  
Very compact : 25.4 X 25.4 X 3 mm  
General Description  
Applications  
The EZGPM01 GPS Receiver is a fully self-  
contained single-board 12 channel parallel  
receiver module intended as a component  
for OEM Global Positioning System(GPS).  
Navigation  
Aviation  
Automotive applications  
Location Based Services  
Timing applications  
Based on the SiRFstar™IIe/LP architecture,  
the module provides complete GPS signal  
processing, thus providing accurate satellite  
position data.  
The EZGPM01 is a completely shielded  
module.  
Key Features  
Industry Leading GPS Performance  
Low Power GPS Architecture  
Builds on the high performance  
SiRFstar™IIe/LP core  
Extreme low power in power-down  
mode, but capable of very fast starts  
High-speed signal acquisition using  
1920 time/frequency search channels  
SBAS(Satellite Based Augmentation  
System) support  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
1
EZGPM01 data sheet  
Maximizes GPS Position Availability  
Multiple Operating Modes  
SingleSat™ updates in reduced visibility  
Superior urban canyon performance  
FoliageLock™ or weak signal tracking  
Continuous Mode  
TricklePower™ Mode  
Push-to-Fix™ Mode  
Block Diagram  
Antenna  
Input  
BOOTSELECT  
XTAL  
GPS  
Data  
RTC  
VANT  
(Optional)  
RF  
Filter  
LNA  
1PPS  
GSP2e/LP  
Signal  
Processor  
AGC  
GRF2i/LP  
RF IC  
RXA/TXA  
RXB/TXB  
Clock  
XTAL  
Reset  
IC  
Data  
Bus  
Address  
Bus  
Power  
Voltage  
Regulator  
Battery  
FLASH  
8Mbit  
EZGPM01  
Figure 1: EZGPM01 Block Diagram  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
2
EZGPM01 data sheet  
Mechanical Drawing  
2.5mm  
1.0mm 3.0mm  
2mm  
1.9mm  
2mm  
4.9mm  
2.8mm  
25.4mm  
9.4mm  
1.277mm  
8mm  
1.5mm  
25.4mm  
12.6mm  
6.35mm  
Figure 2: EZGPM01 recommendations for layout and pads  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
3
EZGPM01 data sheet  
Device Terminal Functions  
16  
17  
18  
19  
20  
15  
14  
13  
12  
11  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
10  
9
8
7
6
5
4
3
2
1
Figure 3: EZGPM01 Terminals  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
4
EZGPM01 data sheet  
Terminal  
1
Terminal Name  
I/O  
I
Description  
3.3V DC supply voltage  
Digital ground  
VCC  
DGND  
2
3
4
BOOTSELECT  
RXA  
I
I
Boots in update mode when high  
Serial Data Input A  
5
6
7
TXA  
TXB  
RXB  
O
O
I
Serial Data Output A  
Serial Data Output B  
Serial Data Input B  
8
9
GPIO3  
RF_ON  
DGND  
I/O  
O
Indicates RF part is ON  
Digital ground  
Analog ground  
Analog ground  
Analog ground  
Analog ground  
Analog ground  
Analog ground  
Antenna input  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
AGND  
AGND  
AGND  
AGND  
AGND  
AGND  
RF_IN  
AGND  
I
Analog ground  
V_ANT  
VCC_RF  
V_BAT  
RESET_N  
GPIO10  
GPIO6  
GPIO5  
GPIO7  
GPIO0  
GPIO1  
T-MARK(1PPS)  
DGND  
I
O
I
I
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
O
Supply for active antenna  
2.85V output of RF section  
External backup battery  
Resets the module when low  
One-pulse-per-second  
Digital ground  
Table 1: Device Terminal Functions  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
5
EZGPM01 data sheet  
Electrical Characteristics  
Absolute Maximum Ratings  
Parameter  
Symbol  
Vcc  
Vin  
Iant  
Tstg  
Min  
Max  
6
5
100  
+125  
Units  
V
V
mA  
ºC  
Power Supply Voltage  
Input Pin Voltage  
Antenna Bias Current  
Storage Temperature  
-55  
Table 2: Absolute Maximum Ratings  
Operating Conditions  
TA = 25ºC; 3V active antenna  
Parameter  
Power Supply  
Voltage  
Symbol Condition  
Vcc  
Min  
3.0  
Typ  
3.3  
Max  
6
Units  
V
Backup Battery  
Voltage  
Antenna Bias  
Voltage  
Vbat  
Vant  
2.5  
2.0  
3.0  
3.0  
3.6  
12  
V
V
Supply Current  
TricklePower  
Supply Current  
Icc  
Itps  
Vcc = 3.3V  
Vcc = 3.3V;  
20% duty  
67  
16.5  
mA  
mA  
cycle; 1 sec  
update period  
Vbat = 3.0V  
Standby Battery  
Current  
Antenna Bias  
Current  
Ibat  
Iant  
Topr  
3.8  
18  
ꢀA  
mA  
ºC  
Vant = 3.0V  
Operating  
-40  
85  
Temperature  
Table 3: Operating Conditions  
Electrical Specifications  
General  
Frequency  
CA Code  
Channels  
L1, CA code, 1575.42 MHz  
1.023 MHz chip rate  
12  
Sensitivity  
Holding Sensitivity(C/N ave. 26dB-Hz)  
-144dBm  
Accuracy  
Position  
10 meters CEP (SA off)  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
6
EZGPM01 data sheet  
Velocity  
Time  
0.1 meters/second (SA off)  
1 ꢀsec synchronized to GPS time  
DGPS Accuracy  
Position  
< 5 meters (SA off)  
Velocity  
0.05 meters/second, typical  
Datum  
WGS-84  
Time-To-First-Fix  
Reacquisition  
SnapStart™  
Hot Start  
Warm Start  
Cold Start  
100ms  
< 3 seconds  
< 8 seconds  
< 38 seconds  
< 45 seconds  
Serial Port  
Electrical Interface  
Protocol support  
2 full duplex serial communication  
NMEA, SiRF binary, RTCM SC-104  
Time – 1PPS  
Level  
CMOS  
Pulse Duration  
Time Reference  
Measurement  
100 ms  
At the pulse positive edge  
Aligned to GPS second  
Table 4: Electrical Specifications  
Operating Modes  
TricklePower™ Description  
The TricklePower™ mode provides the lowest average power dissipation by powering down the  
module after a position fix. It cycles through three states: tracking state(or full power), cpu state, and  
trickle state.  
The receiver is in the full power tracking state when it is first turned on, after a system reset, and when  
the internal RTC wakeup interrupt is generated. Satellite search, initial acquisition, initial position  
calculation, and tracking measurements are always taken in full power.  
In the CPU state, the RF antenna section and GPS clock has been turned off, although the RTC keeps  
running. The CPU would keep running to process the GPS data until a position fix is determined and  
the result has been transmitted by the serial communication interface.  
The trickle state is a low power standby state in which the CPU clock and RF circuits are turned off but  
power is still applied to the baseband. After a set amount of time, the receiver wakes up, makes a  
reset and tries to acquire satellites.  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
7
EZGPM01 data sheet  
Push-to-Fix™ Description  
The push-to-fix™ mode puts the receiver into a background duty cycle mode that provides a periodic  
refresh of position, GPS time, ephemeris data, and RTC calibration every 30 minutes. The push-to-fix  
mode sets the receiver in a background duty cycle consisting of 30 seconds of On time in the tracking  
state at full power, followed by a position computation in the CPU state, followed by approximately  
29.5 minutes in the trickle state.  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
8
EZGPM01 data sheet  
Application Circuit  
Figure 4: EZGPM01 Reference Design  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
9
EZGPM01 data sheet  
Ordering and Contact Information  
Order Number  
Description  
EZGPM01  
MOQ is 1k. Leadtime: 12-16 weeks  
All trademarks mentioned in this document are property of their respective owners.  
SiRF and SiRF logo are registered trademarks of SiRF Technology, Inc. SiRFstar, SingleSat, SnapLock, SnapStart,  
FoliageLock, Push-to-Fix, TricklePower are trademarks of SiRF Technology, Inc.  
EAZIX, Inc.  
Unit 301 Plaz@ Building B  
6530 Northgate Avenue, Filinvest Corporate City  
Alabang, Muntinlupa City  
Philippines 1770  
Tel: + 632 772-4941  
+ 632 772-4942  
+ 632 772-4943  
Fax: + 632 772-4944  
Website: http://www.eazix.com/  
E-mail: info@eazix.com  
Copyright © EAZIX, Inc. 2004. All Rights Reserved  
10  
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