Datasheet

PIC24HJ12GP201/202
DS70282E-page 156 © 2007-2011 Microchip Technology Inc.
FIGURE 18-3: ADC CONVERSION CLOCK PERIOD BLOCK DIAGRAM
1
0
ADC Internal
RC Clock
(2)
T
OSC
(1)
X2
ADC Conversion
Clock Multiplier
1, 2, 3, 4, 5,..., 64
AD1CON3<15>
TCY
TAD
6
AD1CON3<5:0>
Note 1: Refer to Figure 8-2 for the derivation of Fosc when the PLL is enabled. If the PLL is not used, FOSC is equal to
the clock source frequency. T
OSC = 1/FOSC.
2: See the ADC electrical characteristics for the exact RC clock value.