XC164CS-16F Datasheet, PDF (62/78 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core

XC164-16
Derivatives
Electrical Parameters
3) The limit values for f_BC must not be exceeded when selecting the peripheral frequency and the ADCTC setting.
4) This parameter includes the sample time t_S, the time for determining the digital result and the time to load the
result register with the conversion result (t_SYS = 1/f_SYS).
Values for the basic clock t_BC depend on programming and can be taken from Table 15.
When the post-calibration is switched off, the conversion time is reduced by 12 × t_BC.
5) The actual duration of the reset calibration depends on the noise on the reference signal. Conversions
executed during the reset calibration increase the calibration time. The TUE for those conversions may be
increased.
6) Not subject to production test - verified by design/characterization.
The given parameter values cover the complete operating range. Under relaxed operating conditions
(temperature, supply voltage) reduced values can be used for calculations. At room temperature and nominal
supply voltage the following typical values can be used:
C_AINTtyp = 12 pF, C_AINStyp = 7 pF, R_AINtyp = 1.5 kΩ, C_AREFTtyp = 15 pF, C_AREFStyp = 13 pF, R_AREFtyp = 0.7 kΩ.
V_AIN
R_Source
C _Ext
R_{AIN, On}
A/D Converter
C _AINT ^- C _AINS
C_AINS
Figure 14 Equivalent Circuitry for Analog Inputs
MCS05570
Data Sheet
60
V2.2, 2006-03