Specifications

WM_PRJ_Q2501_PTS_001 – 003
March 2004
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2.6.8 Output signals
2.6.8.1 Power supply for external devices
This output can be used to power some external functions. VCC has to be used
as a 2.8 V digital power supply. This power supply is available when the module
is on.
Pin description
Signal Pin # I/O I/O type Description
VCC 60 O Supply 2.8 V Power supply for external
digital devices
2.6.8.2 GSM transmission activity status
WISMO Quik Q2501 provides a status indication about the GSM RF
transmission activity (GSM_PAC_EN).
This output can be used for example as a power supply synchronization in order
to guarantee a correct current supply during transmission bursts.
Pin description
Signal Pin # I/O I/O type Description
GSM_PAC_EN 20 O Digital GSM transmission activity status
This signal indicates following status:
•
GSM_PAC_EN=0: no operation
•
GSM_PAC_EN=1: indicates increased power consumption during
transmission