UMTS/HSPA+ Module Series
UC200A-GL_Hardware_Design 46 / 78
The resolution of the ADC is up to 12 bits. The following table describes the characteristic of the ADC
interface.
Table 21: Characteristics of ADC Interface
4.8. Indication Signal
The pin definition of indication signal is as follows:
Table 22: Pin Definition of Indication Signal
4.8.1. Network Status Indication
The network indication pins can be used to drive network status indication LEDs. The module provides
two network indication pins: NET_MODE and NET_STATUS. The following tables describe pin definition
and logic level changes in different network status.
Name
Min.
Typ.
Max.
Unit
ADC0 Voltage Range
0
-
VBAT_BB
V
ADC1 Voltage Range
0
-
VBAT_BB
V
ADC Resolution
-
12
-
bits
1. The input voltage of ADC should not exceed its corresponding voltage range.
2. It is prohibited to supply any voltage to ADC pin when VBAT is removed.
3. It is recommended to use resistor divider circuit for ADC application and the divider resistance should
not exceed 100K.
Pin Name
Pin No.
I/O
Description
Comment
NET_MODE
5
DO
Indicate the module
’s
network
registration mode
1.8 V power domain.
If unused, keep it open.
NET_STATUS
6
DO
Indicate the module's network
activity status
NOTE