AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 253

• Manufacturer Part Number: AT90PWM2B-16SE
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

4317J–AVR–08/10
As soon as a conversion is requested thanks to the ADSC bit, the Analog to Digital Conversion
is started. In case the amplifier output is modified during the sample phase of the ADC, the on-
going conversion is aborted and restarted as soon as the output of the amplifier is stable. This
ensure a fast response time. The only precaution to take is to be sure that the trig signal (PSC)
frequency is lower than ADCclk/4.
Figure 21-16. Amplifier synchronization timing diagram for AT90PWM2B/3B
Figure 21-17. Amplifier synchronization timing diagram for AT90PWM2B/3B
Block
ADC
PSC
(Sync Clock)
Si g nal to be
PS Cn_ASY
AMPLI_clk
measu red
CK ADC
Activity
ADSC
ADC
With change on analog input signal
ADSC is set when the amplifier output is changing due to the amplifier clock
switch.
Sampling
ADC
Conv
ADC
ADC Result
Delta V
Ready
AT90PWM2/3/2B/3B
4th stable sample
Sampling
ADC
Valid sample
Conv
ADC
ADC Result
Ready
253