Mobile Tech Co. Ltd 64MXFWBF110A Manuale Utente
23
3.18.
3.18.
3.18.
3.18.ADC
ADC
ADC
ADC
MD251 provides one auxiliary ADC (General purpose analog to digital converter.) as
voltage input pin, which can be used to detect the values of some external items such as
voltage 、 temperature etc. For module application, user can use AT command
“
voltage input pin, which can be used to detect the values of some external items such as
voltage 、 temperature etc. For module application, user can use AT command
“
AT+CADC#
” to read the voltage value added on ADC pin.
The functional specifications of the auxiliary ADC are listed in the following table.
Table
Table
Table
Table 19
19
19
19 The
The
The
The Functional
Functional
Functional
Functional specification
specification
specification
specification of
of
of
of Auxiliary
Auxiliary
Auxiliary
Auxiliary ADC
ADC
ADC
ADC
Symbol Parameter
Min
Typical
Max
Unit
N
Resolution
10
Bit
FC
Clock Rate
0.1
1.0833
5
MHz
FS
Sampling Rate @ N-Bit
5/(N+1)
MSPS
Input Swing
1.0
AVDD
V
T
Operating Temperature
-40
85
℃
Current Consumption Power-up
Power-Down
Power-Down
300
1
1
μA
μA
μA
3.19.
3.19.
3.19.
3.19. Digital
Digital
Digital
Digital Pin
Pin
Pin
Pin Electrical
Electrical
Electrical
Electrical Characteristics
Characteristics
Characteristics
Characteristics
About the digital pin electrical characteristics of MD251, please reference the table 20.
Table
Table
Table
Table 20:
20:
20:
20: Module
Module
Module
Module digital
digital
digital
digital electrical
electrical
electrical
electrical characteristics
characteristics
characteristics
characteristics
PWM
VDD(2.7V-2.9V)
DAIRST
PD
VDD
DAISYNC
PD
VDD
BT_EINT1
PU
VDDK(1.08V-1.32V)
KCO0
PU
VDD
KCO1
PU
VDD
KCO2
PU
VDD
KCO3
PU
VDD
KCO4
PU
VDD
KROW0
PD
VDD
KROW1
PD
VDD
KROW2
PD
VDD
KROW3
PD
VDD
KROW4
PD
VDD
SRCLKENAI
PD
VDD
BT_32K
PD
VDD
DAIPCMIN
PD
VDD
DAIPCMOUT
PD
VDD