Sierra Wireless Q2687 Manuel D’Utilisation
Wireless CPU Quik Q2687
Interfaces
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WA_ENG_Q2687_PTS_001-002
September 11, 2006
3.12
Digital to Analog Converter
One Digital to Analog Converter (DAC) input is provided by the Q2687 Wireless CPU.
The converter is 8-bit resolution, ranges from 0V to 2.3V.
The converter is 8-bit resolution, ranges from 0V to 2.3V.
Pin description of the DAC
Signal
Pin number I/O
I/O type
Description
AUX-DAC 82
O
Analog
D/A
converter
This output assumes a typical external load of 2kΩ and 50pF in parallel.
Electrical Characteristics of the DAC
Parameter
Min
Typ
Max
Unit
Resolution
8
bits
Output signal range
0
2.3
V
Output voltage after reset
1.147
V
INL (Integral non linearity)
-5
+5
LSB
DNL (Differential non
linearity)
linearity)
-1 +1
LSB