Example 3–1. 8-khz sampling rate – Texas Instruments MSP50C6xx User Manual

Page 77

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Digital-to-Analog Converter (DAC)

3-13

Peripheral 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

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