Datasheet

Figure 53-7. Interpolator Spectral Mask for OSR = 8
0 0.5*f
s
1*f
s
1.5*f
s
2*f
s
2.5*f
s
3*f
s
3.5*f
s
4*f
s
-120
-96
-72
-48
-24
0
Frequency (Hz), overall mask
Gain (dB), overall mask
3rd order SINC filter overall mask for OSR = 8
0 f
s
/16 f
s
/8 3*f
s
/16 f
s
/4 5*f
s
/16 3*f
s
/8 7*f
s
/16 f
s
/2
-12
-9.6
-7.2
-4.8
-2.4
0
Frequency (Hz), 0–f
s
/2 mask
Gain (dB), 0–f
s
/2 mask
3rd order SINC filter 0–f
s
/2 mask for OSR = 8
Figure 53-8. Interpolator Spectral Mask for OSR = 16
0 1*f
s
2*f
s
3*f
s
4*f
s
5*f
s
6*f
s
7*f
s
8*f
s
-120
-96
-72
-48
-24
0
Frequency (Hz), overall mask
Gain (dB), overall mask
3rd order SINC filter overall mask for OSR = 16
0 f
s
/16 f
s
/8 3*f
s
/16 f
s
/4 5*f
s
/16 3*f
s
/8 7*f
s
/16 f
s
/2
-12
-9.6
-7.2
-4.8
-2.4
0
Frequency (Hz), 0–f
s
/2 mask
Gain (dB), 0–f
s
/2 mask
3rd order SINC filter 0–f
s
/2 mask for OSR = 16
Figure 53-9. Interpolator Spectral Mask for OSR = 32
0 2*f
s
4*f
s
6*f
s
8*f
s
10*f
s
12*f
s
14*f
s
16*f
s
-120
-96
-72
-48
-24
0
Frequency (Hz), overall mask
Gain (dB), overall mask
3rd order SINC filter overall mask for OSR = 32
0 f
s
/16 f
s
/8 3*f
s
/16 f
s
/4 5*f
s
/16 3*f
s
/8 7*f
s
/16 f
s
/2
-12
-9.6
-7.2
-4.8
-2.4
0
Frequency (Hz), 0–f
s
/2 mask
Gain (dB), 0–f
s
/2 mask
3rd order SINC filter 0–f
s
/2 mask for OSR = 32
53.6.5 Conversion FIFO
Each channel embeds a four half-word FIFO to handle the data to be converted.
When the TXRDY flag of a channel in the DACC_ISR is active, the DACC is ready to accept conversion requests by
writing data into the corresponding DACC_CDRx. Data which cannot be converted immediately are stored in the
FIFO of the corresponding channel.
SAM E70/S70/V70/V71 Family
Digital-to-Analog Converter Controller (DACC)
©
2019 Microchip Technology Inc.
Datasheet
DS60001527D-page 1711