S6E2H Datasheet, PDF (147/163 Pages) Cypress Semiconductor – 32-bit ARM ® Cortex ® -M4F FM4 Microcontroller

S6E2H Series
Analog signal
source
Rext
ANxx
Analog input pin
R_AIN
Comparator
C_AIN
(Equation 1) tS ≥ (RAIN + Rext ) × CAIN × 9
tS: ..............Sampling time
RAIN:Input resistance of A/D = 1.2 kΩ at 4.5 V < AVCC < 5.5 V
.......................................... Input resistance of A/D = 1.8 kΩ at 2.7 V < AVCC < 4.5 V
CAIN: Input capacity of A/D = 12.05 pF at 2.7 V < AVCC < 5.5 V
Rext: Output impedance of external circuit
(Equation 2) tC = tCCK × 14
tC: .............. Compare time
tCCK: Compare clock cycle
Document Number: 001-98943 Rev *C
Page 147 of 163