M10 Hardware Design
3 Application interface
The module is equipped with a 64-pin 1.3mm pitch SMT pad that connects to the cellular
application platform. Sub-interfaces included in these pads are described in detail in following
chapters:
z Power supply (
refer to Chapter 3.3)
z Serial interfaces (
refer to Chapter 3.8)
z Two analog audio interfaces (
refer to Chapter 3.9)
z SIM interface (refer to Chapter 3.11)
Electrical and mechanical characteristics of the SMT pad are specified in Chapter 5&Chapter7.
3.1 Pin description
Table 5: Pin description
Power Supply
PIN NAME I/O DESCRIPTION DC CHARACTERISTICS COMMENT
VBAT I VBAT pins of the SMT pad
are dedicated to connect the
supply voltage. The power
supply of module has to be a
single voltage source of
VBAT= 3.4V...4.5V. It must
be able to provide sufficient
current in a transmitting
burst which typically rises to
2A.mostly, These 3 pins are
voltage inputs.
Vmax= 4.5V
Vmin=3.4V
Vnorm=4.0V
VRTC I/O Current input for RTC when
the battery is not supplied for
the system.
Current output for backup
battery when the main
battery is present and the
backup battery is in low
voltage state.
Vmax=2.85V
Vmin=2.6V
Vnorm=2.75V
Iout(max)= 730uA
Iin=2.6~5 uA
Recommend to
connected to a
battery or a
capacitor.
VDD_EXT O Supply 2.8V voltage for
external circuit. By
measuring this pin, user can
Vmax=2.9V
Vmin=2.7V
Vnorm=2.8V
1.If unused,keep
pin open.
2. Recommend
M10_HD_V1.00 - 17 -
To Next Page
Loading...
Need help?
General
