Telit Wireless Solutions GE863-QUAD Manual Do Utilizador
GE863-QUAD
GE863-PY
1vv0300715 Rev. 1 - 19/09/06
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Right reserved
page 57 of 79
11 DAC and ADC section
11.1 DAC Converter
11.1.1 Description
The GE863-QUAD / PY module provides a Digital to Analog Converter. The signal (named
DAC_OUT) is available on BGA Ball #63 of the GE863-QUAD / PY module and on pin 17 of
PL104 on EVK2 Board (CS1151).
The on board DAC is a 10 bit converter, able to generate a analogue value based a specific
input in the range from 0 up to 1023. However, an external low-pass filter is necessary
DAC_OUT) is available on BGA Ball #63 of the GE863-QUAD / PY module and on pin 17 of
PL104 on EVK2 Board (CS1151).
The on board DAC is a 10 bit converter, able to generate a analogue value based a specific
input in the range from 0 up to 1023. However, an external low-pass filter is necessary
Min
Max
Units
Voltage range (filtered)
0
2,6
Volt
Range
0
1023
Steps
The precision is 10 bits so, if we consider that the maximum voltage is 2V, the integrated
voltage could be calculated with the following formula:
Integrated output voltage = 2 * value / 1023
DAC_OUT line must be integrated (for example with a low band pass filter) in order to obtain
an analog voltage.