16F1829 datasheet(153/420 Pages) MICROCHIP

Part #	16F1829

Description	14/20-Pin Flash Microcontrollers with nanoWatt XLP Technology

PDF	420 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2010 Microchip Technology Inc.

Preliminary

DS41440A-page 153

PIC16F/LF1825/1829

16.1.4

CONVERSION CLOCK

The source of the conversion clock is software select-

able via the ADCS bits of the ADCON1 register. There

are seven possible clock options:

•FOSC/2

•FOSC/4

•FOSC/8

•FOSC/16

•FOSC/32

•FOSC/64

•FRC (dedicated internal oscillator)

The time to complete one bit conversion is defined as

TAD. One full 10-bit conversion requires 11.5 TAD peri-

ods as shown in Figure 16-2.

For correct conversion, the appropriate TAD specifica-

tion must be met. Refer to the A/D conversion require-

ments in Section 30.0 “Electrical Specifications” for

more information. Table 16-1 gives examples of appro-

priate ADC clock selections.

Note:

Unless using the FRC, any changes in the

system clock frequency will change the

ADC

clock

frequency,

which

may

adversely affect the ADC result.

16F1829 Datasheet(PDF) 153 Page - Microchip Technology