DSPIC33FJ32MC202 Microchip Technology Inc., DSPIC33FJ32MC202 Datasheet - Page 208

• Manufacturer Part Number: DSPIC33FJ32MC202
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

EQUATION 19-1:
FIGURE 19-3:
FIGURE 19-4:
DS70283B-page 206
11 1111 1111 (= 1023)
11 1111 1110 (= 1022)
10 0000 0011 (= 515)
10 0000 0010 (= 514)
10 0000 0001 (= 513)
10 0000 0000 (= 512)
01 1111 1111 (= 511)
01 1111 1110 (= 510)
01 1111 1101 (= 509)
00 0000 0001 (= 1)
00 0000 0000 (= 0)
Note:
T
OSC
Output Code
(1)
ADC Internal
RC Clock
Refer to Figure 7-2 for the derivation of F
to the clock frequency. T
X
ADC CONVERSION CLOCK PERIOD
ADC TRANSFER FUNCTION (10-BIT EXAMPLE)
ADC CONVERSION CLOCK PERIOD BLOCK DIAGRAM
2
V
REFL
T
V
CY
REFL
OSC
+
V
REFH
= 1/F
1024
– V
OSC
T
ADCS =
AD
REFL
AD1CON3<5:0>
ADC Conversion
Clock Multiplier
1, 2, 3, 4, 5,..., 64
Preliminary
.
= T
OSC
6
CY
V
when the PLL is enabled. If the PLL is not used, F
T
T
REFL
(ADCS + 1)
CY
AD
+
– 1
512 * (V
REFH
1024
– V
REFL
)
V
REFL
AD1CON3<15>
© 2007 Microchip Technology Inc.
+
0
1
1023 * (V
REFH
1024
T
AD
OSC
– V
(V
INH
REFL
is equal
– V
)
V
INL
REFH
)