Datasheet

dsPIC33FJXXXMCX06A/X08A/X10A
DS70594D-page 328  2009-2012 Microchip Technology Inc.
TABLE 26-48: DMA READ/WRITE TIMING REQUIREMENTS
TABLE 26-47: ADC CONVERSION (10-BIT MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C
Param
No.
Symbol Characteristic Min. Typ
(1)
Max. Units Conditions
Clock Parameters
AD50b T
AD ADC Clock Period 76 — — ns —
AD51b t
RC ADC Internal RC Oscillator Period — 250 — ns —
Conversion Rate
AD55b tCONV Conversion Time — 12 TAD —— —
AD56b F
CNV Throughput Rate — — 1.1 Msps —
AD57b TSAMP Sample Time 2 TAD ——— —
Timing Parameters
AD60b t
PCS Conversion Start from Sample
Trigger
(1,2)
2.0 TAD — 3.0 TAD — Auto-Convert Trigger
(SSRC<2:0> = 111) not
selected
AD61b t
PSS Sample Start from Setting
Sample (SAMP) bit
(1,2)
2.0 TAD — 3.0 TAD ——
AD62b t
CSS Conversion Completion to
Sample Start (ASAM = 1)
(1,2)
—0.5 TAD —— —
AD63b t
DPU Time to Stabilize Analog Stage
from ADC Off to ADC On
(1,3)
——20s—
Note 1: These parameters are characterized but not tested in manufacturing.
2: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
3: t
DPU is the time required for the ADC module to stabilize when it is turned on (AD1CON1<ADON> = 1).
During this time, the ADC result is indeterminate.
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Characteristic Min. Typ Max. Units Conditions
DM1a DMA Read/Write Cycle Time — — 2 T
CY ns This characteristic applies to
dsPIC33FJ256MCX06A/X08A/X10A
devices only.
DM1b DMA Read/Write Cycle Time — — 1 TCY ns This characteristic applies to all
devices with the exception of the
dsPIC33FJ256MCX06A/X08A/X10A.