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Digital-to-Analog Converter (DAC)
3-13Peripheral Functions
Example 3–1. 8-kHz Sampling Rate
8 kHz Nominal Synthesis Rate
32.768 kHz Oscillator Reference
DAC
Precision
IntGenCtrl
PDMCD
Bit
Over-
Sampling
Factor
ClkSpdCtrl
PLLM
Register
Value
(hex)
Master
Clock
Rate
(MHz)
PDM
Rate
(MHz)
CPU
Clock
Rate
(MHz)
Output
Sampling
Rate
(kHz)
Number of
Instructs
Between
DAC
Interrupts
Number of
Instructs
Between
8 kHz
Interrupts
8 bits 1 1x 0x 0F 2.10 2.10 1.05 8.19 128 128
2x 0x 1E 4.06 4.06 2.03 15.87 128 256
4x 0x 3E 8.26 8.26 4.13 32.26 128 512
8x 0x 7C 16.38 16.38 8.19 64.00 128 1024
0
1x 0x 1E 4.06 2.03 2.03 7.94 256 256
2x 0x 3E 8.26 4.13 4.13 16.13 256 512
4x 0x 7C 16.38 8.19 8.19 32.00 256 1024
9 bits
1 1x 0x 1E 4.06 4.06 2.03 7.94 256 256
2x 0x 3E 8.26 8.26 4.13 16.13 256 512
4x 0x 7C 16.38 16.38 8.19 32.00 256 1024
0
1x 0x 3E 8.26 4.13 4.13 8.06 512 512
2x 0x 7C 16.38 8.19 8.19 16.00 512 1024
10 bits
1 1x 0x 3E 8.26 8.26 4.13 8.06 512 512
2x 0x 7C 16.38 16.38 8.19 16.00 512 1024
0 1x 0x 7C 16.38 8.19 8.19 8.00 1024 1024