70291E Datasheet, PDF (388/436 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
FIGURE 31-27:
ADC CONVERSION (12-BIT MODE) TIMING CHARACTERISTICS
(ASAM = 0, SSRC<2:0> = 000)
AD50
ADCLK
Instruction
Execution
Set SAMP
SAMP
AD61
DONE
AD1IF
Clear SAMP
AD60
TSAMP
AD55
12
34 5 6
1 – Software sets AD1CON. SAMP to start sampling.
2 ^{– Sampling starts after discharge period. TSAMP is described in}
Section 28. “10/12-bit ADC without DMA” (DS70210) in the
“dsPIC33F/PIC24H Family Reference Manual”.
3 ^{– Software clears AD1CON. SAMP to start conversion.}
4 – Sampling ends, conversion sequence starts.
789
5 ^{– Convert bit 11.}
6 – Convert bit 10.
7 ^{– Convert bit 1.}
8 – Convert bit 0.
9 ^{– One TAD for end of conversion.}
DS70291E-page 388
© 2011 Microchip Technology Inc.