Smart Machine Smart Decision
SIM68R_Hardware Design_V1.02
10
2013-01-22
Hot start
<1
s
Warm start
26
s
Time To First Fix
(3)
Cold start
28
s
Hot start
0.7
s
Warm start
1.5
s
A-GPS TTFF(EPO
in flash mode)
Cold start
12.5
s
Autonomous
acquisition(cold start)
-148
dBm
Re-acquisition
-160
dBm
Sensitivity
Tracking
-167
dBm
Channels
132
Update rate
1
10
Hz
Tracking L1, CA
Code
Receiver
Protocol support
NMEA,PMTK
Acquisition
34
mA
Continuous tracking
30
mA
Sleep current
<440
uA
Power
consumption-A
(4)
Backup current
14
uA
(1) 50% 24hr static, -130dBm
(2) 50% at 30m/s
(3) –130 dBm, GPS&GLONASS mode
(4) Single Power supply 3.3V under GPS+GLONASS signal
2.3
General features
Table 2: General features
Parameters
Value
Supply voltage VCC
+2.8V~4.3V
Supply voltage ripple VCC
54 mV(RMS) max @ f = 0~3MHz
15 mV(RMS) max @ f > 3 MHz
Power consumption(acquisition)
37mA type. @ VCC=3.3 V
Power consumption(sleep)
440uA type. @ VCC=3.3 V
Storage temperature
-40ºC~+85ºC
Operating temperature
-40ºC~+85ºC (note 1)
VIL
-0.3V~0.8V
VIH
2.0V~3.6V
VOL
-0.3V~0.4V
I/O signal levels
VOH
2.4V~3.1V
I/O output sink/source capability
+/- 3mA max
I/O input leakage
+/- 10 uA max