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PDF Venus638 Data sheet ( Hoja de datos )
| Número de pieza | Venus638 | |
| Descripción | GPS Module | |
| Fabricantes | SkyTraq | |
| Logotipo |  |
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Venus638 Family GPS Module
Data Sheet
10mmx 10mm
Venus638LPx-L / Venus638LPx-D
Venus638FLPx-L / Venus638FLPx-D
SkyTraq Technology, Inc.
empower mobility, without uncertainty
1
www.skytraq.com.tw
1 page  
Venus638LPx PIN-OUT DIAGRAM
Figure-2a Venus638LPx Pin-Out Diagram
VENUS638LPx PIN DEFINITION
Pin Number
1
2
3
4
5
6
7
8
Signal Name
RSTN
VCC33I
NC
GND
GND
GND
LED
PSE_SEL
9 NC
10 GND
11 GND
12 NC
13 NC
14 BAUDSEL1
15 GND
16 NC
17 V12O_RTC
18 VBAT
19 GND
20 NC
21 GND_RF
Type
Input
Power Input
Power
Power
Power
Output
Input
Power
Power
Input
Power
Power Output
Power Input
Power
Power
Description
Active LOW reset input. 3.3V LVTTL
Main voltage supply input, 2.8V ~ 3.6V
Not connected, empty pin
System ground
System ground
System ground
Navigation status indicator.
Search engine mode selection
1: low power mode
0: enhanced acquisition mode
3.3V LVTTL
Not connected, empty pin
System ground
System ground
Not connected, empty pin
Not connected, empty pin
Hardware baud rate selection, used with BaudSel0.
BaudSel[1:0] = 00 for 9600 baud, 01 for 4800 baud,
10 for 38400 baud, 11 for 115200 baud
3.3V LVTTL
System ground
Not connected, empty pin
1.2V LDO output for RTC & backup memory. Normally unused.
RTC & backup memory voltage input, 1.5V ~ 6.0V.
Must be connected.
System ground
Not connected, empty pin
RF section system ground
SkyTraq Technology, Inc.
empower mobility, without uncertainty
5
www.skytraq.com.tw
5 Page 
RECOMMENDED REFLOW PROFILE
Temperature (℃)
Time(minute)
25 82.5 140 150 160 170 180 190 200 225 250 250 215 185 155 125 95 65 35
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9
Profile Description
Preheat
Maximum Temperature
Time(ΔT)
Ramp-Up
Ramp-Up Rate
Time(ΔT)
Reflow
Maximum Temperature
Minimum Temperature
Peak Temperature
Time(ΔT) during Peak
Temp.+/-2℃
Reflow Time(ΔT)
Cooling
Cooling Rate
Time(ΔT)
SnPb Eutectic Process
100+/-10 ℃
40~60s
1 ℃/s Max.
120~150s
Peak Temp.
180+/-5℃
220+/-2℃
10~30s
120~150s
1.5 ℃/s Max
60~120s
Lead Free Process
140+/-10 ℃
50~70s
1 ℃/s Max.
160~200s
Peak Temp.
200+/-10℃
250+/-2℃
20~40s
120~150s
1.5 ℃/s Max
150~180s
SkyTraq Technology, Inc.
empower mobility, without uncertainty
11
www.skytraq.com.tw
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet Venus638.PDF ] | |
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