XC886_1 Datasheet, PDF (108/144 Pages) Infineon Technologies AG – 8-Bit Single-Chip Microcontroller

XC886/888CLM
Functional Description
However, it is important to note that the conversion error could increase due to loss of
charges on the capacitors, if f_ADC becomes too low during slow-down mode.
3.21.2 ADC Conversion Sequence
The analog-to-digital conversion procedure consists of the following phases:
• Synchronization phase (t_SYN)
• Sample phase (t_S)
• Conversion phase
• Write result phase (t_WR)
conversion start
trigger
Sample Phase
f_ADCI
Source
interrupt
Conversion Phase
Channel Result
interrupt interrupt
BUSY Bit
SAMPLE Bit
t_SYN
t_S
t_CONV
Write Result Phase
t_WR
Figure 36 ADC Conversion Timing
Data Sheet
101
V0.9, 2006-12