Datasheet

© 2010 Microchip Technology Inc. DS70135G-page 217
dsPIC30F4011/4012
FIGURE 24-26: 10-BIT HIGH-SPEED A/D CONVERSION TIMING CHARACTERISTICS
(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)
AD55
TSAMP
Set ADON
ADCLK
Instruction
SAMP
ch0_dischrg
ch1_samp
DONE
ADIF
ADRES(0)
ADRES(1)
1 2 3 4 5 6 4 5 6 8
1
- Software sets ADCONx. ADON to start AD operation.
2
- Sampling starts after discharge period.
3
- Convert bit 9.
4
- Convert bit 8.
5
- Convert bit 0.
AD50
ch0_samp
ch1_dischrg
eoc
7 3
AD55
6
- One T
AD for end of conversion.
7
- Begin conversion of next channel
8
- Sample for time specified by SAMC<4:0>.
TSAMP
3 4
Execution
TSAMP is described in Section 17. 10-Bit A/D Converter”
in the “dsPIC30F Family Reference Manual” (DS70046).
TCONV