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8
RSA-1200L User Manual
1.5 Application Circuit
Figure 1-4 Application Circuit Reference
Note:
(1)
Ground Planes:
This pin2 should be connect to ground.
(2)
Serial Interface:
(
Ⅰ
) The TXA pin is recommended to connect to serial resistance(220
Ω
)
and pull up (10K
Ω
). It can increase the stability of serial data. (Default
NMEA)
(
Ⅱ
) The RXA pin is recommended to connect to serial resistance(220
Ω
)
and pull up (10K
Ω
). It can increase the stability of serial data. (Default
NMEA)
(3)
Backup Battery:
When module is working, must to supply VCC pin(Pin1) and VBATT
pin(Pin6) power at the same time.
It
’
s recommended to connect a backup battery to VBATT pin.
In order to enable the warm start and hot start features of the GPS receiver.
If you use backup battery, should be add a bypassing capacitor (10uF) at
VBATT pin. It can reduce noise and increase the stability.
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