ML8011 GSM GPRS Modem User’s Manual
Page 5
3. Application interface
3.1Pin Description
Figure 1 Pin distribution
Table 3 Pin
description
PIN NAME
PIN
I/O DESCRIPTION
DC
CHARATERISTICS
COMMENT
VBAT
1,2
I
Module main power
supply. The power
supply of module has to
be a single voltage source
of VBAT = 3.6V~4.6V,it
must be able to provide
sufficient current in a
transmitting burst which
typically rises to 2A
Vmax = 4.6V
Vmin = 3.6V
Vnormal = 4.0V
Recommend to used
MIC29302/SP2930
2 High-Current
Low-Dropout
Regulators
VOUT
10
O
Supply 3.3V voltage for
external circuit
Vmax = 3.4V
Vmin = 3.2V
Vnormal = 3.3V
Imax = 100mA
1. If unused, keep
this pin open.
2. Recommend to
added a 2.2~10uF
bypass capacitor
when using this pin
to power supply.
