manuais Cirrus Logic CS5378

Cirrus logic CS5378 Manual do Utilizador (88 páginas)

Marca: Cirrus-logic | Categoria: Hardware | Tamanho: 0.57 MB |

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Índice

Features

1

Description

1

TABLE OF CONTENTS

2

DS639F3 3

3

LIST OF FIGURES

4

LIST OF TABLES

5

1. GENERAL DESCRIPTION

6

1.1 Digital Filter Features

6

1.3 System Level Features

7

1.4 Configuration Interface

8

DS639F3 9

9

SPI Registers

11

Digital Filter Registers

11

ABSOLUTE MAXIMUM RATINGS

12

THERMAL CHARACTERISTICS

13

DIGITAL CHARACTERISTICS

13

POWER CONSUMPTION

13

SWITCHING CHARACTERISTICS

14

3. SYSTEM DESIGN WITH CS5378

18

3.1 Power Supplies

18

3.2 Reset Control

18

3.3 PLL and Clock Generation

18

DS639F3 19

19

BOOT Reset Mode

21

1 EEPROM boot

21

0 Microcontroller boot

21

DS639F3 23

23

DS639F3 25

25

Serial Read from EEPROM

26

DS639F3 27

27

Sample Command:

28

Write ROM Coefficients - 0x04

28

Filter Start - 0x07

28

DS639F3 29

29

Table 8. Example EEPROM File

29

DS639F3 32

32

Figure 19. SPI Registers

32

DS639F3 33

33

DS639F3 34

34

DS639F3 35

35

Correction

36

10.4 Modulator Data Input

37

10.5 Modulator Flag Input

37

Computation Cycles

39

Standby Mode

39

12.SINC FILTER

40

12.1 SINC1 Filter

40

12.2 SINC2 Filter

40

12.3 SINC3 Filter

40

SINC filters

41

DS639F3 43

43

13.FIR FILTER

44

13.1 FIR1 Filter

44

13.2 FIR2 Filter

44

13.3 On-Chip FIR Coefficients

45

SINC + FIR filters

46

DS639F3 47

47

Minimum phase group delay

48

DS639F3 49

49

Figure 27. FIR1 Coefficients

49

DS639F3 50

50

DS639F3 51

51

14.IIR FILTER

52

14.1 IIR Architecture

52

14.2 IIR1 Filter

52

14.3 IIR2 Filter

52

14.4 IIR3 Filter

53

14.5 On-Chip IIR Coefficients

53

IIR filters

54

DS639F3 55

55

DS639F3 56

56

DS639F3 57

57

DS639F3 58

58

DS639F3 59

59

DS639F3 60

60

DS639F3 62

62

DS639F3 63

63

DS639F3 64

64

DS639F3 65

65

20.REGISTER SUMMARY

66

20.1 SPI Registers

66

DS639F3 67

67

SPI Address: 0x00

67

DS639F3 68

68

SPI Address: 0x03

68

DS639F3 69

69

SPI Address: 0x06

69

DS639F3 70

70

SPI Address: 0x09

70

20.2 Digital Filter Registers

71

DS639F3 72

72

DF Address: 0x00

72

DS639F3 73

73

DF Address: 0x0E

73

DS639F3 74

74

DF Address: 0x20

74

DS639F3 75

75

DF Address: 0x21

75

DS639F3 76

76

DF Address: 0x25

76

DF Address: 0x29

77

DS639F3 77

77

DS639F3 78

78

DF Address: 0x2A

78

DS639F3 79

79

DF Address: 0x2B

79

DS639F3 80

80

DF Address: 0x2C

80

DS639F3 81

81

DF Address: 0x2E

81

DS639F3 82

82

DF Address: 0x2F

82

22.PACKAGE DIMENSIONS

85

28L SSOP PACKAGE DRAWING

85

CS5378-ISZ (Lead Free)

86

25.REVISION HISTORY

87

DS639F3 88

88

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