Cirrus Logic CDB5378 manuali

Cirrus logic CDB5378 Manuale Utente (74 pagine)

Marchio: Cirrus-logic | Categoria: Hardware | Dimensione: 4.04 MB |

Inglese

Indice

Features

1

General Description

1

2 DS639DB4

2

IMPORTANT NOTICE

2

TABLE OF CONTENTS

3

LIST OF FIGURES

5

LIST OF TABLES

6

1. INITIAL SETUP

7

1.1 Kit Contents

7

1.2 Hardware Setup

7

1.3 Software Setup

11

1.3.1 PC Requirements

11

12 DS639DB4

12

1.4 Self-testing CDB5378

13

1.4.1 Noise test

13

1.4.2 Distortion Test

14

2.1 Block Diagram

15

2. HARDWARE DESCRIPTION

15

2.2 Analog Hardware

16

2.2.1 Analog Inputs

16

2.2.1.4 Input Protection

17

2.2.1.5 Input RC Filters

17

2.2.1.6 Common Mode Bias

18

2.2.2.3 Anti-alias RC Filters

19

2.2.3 Delta-Sigma Modulator

20

DS639DB4 21

21

2.2.5.1 VREF_MOD

22

2.2.5.2 Common Mode Bias

22

GPIO Signals Description

23

2.3.1.3 Phase Locked Loop

24

2.3.2 Interface CPLD

25

26 DS639DB4

26

2.3.3 Digital Control Signals

27

2.3.4 Microcontroller

27

28 DS639DB4

28

2.3.5 RS-485 Telemetry

29

2.3.5.1 CLK, SYNC

30

2.3.6 UART Connection

31

2.3.7 External Connector

32

2.4 Power Supplies

32

DS639DB4 33

33

2.5 PCB Layout

34

2.5.1 Layer Stack

34

2.5.2 Differential Pairs

34

2.5.3 Bypass Capacitors

35

2.5.4 Dual-row Headers

36

3. SOFTWARE DESCRIPTION

37

3.1 Menu Bar

37

3.2 About Panel

38

• Data Capture

39

3.3.1 USB Port

40

3.3.2 Digital Filter

41

3.3.3 Analog Front End

42

3.3.4 Test Bit Stream

43

3.3.5 Gain / Offset

44

3.3.6 Data Capture

45

3.3.7 External Macros

46

3.4 Analysis Panel

47

3.4.1 Test Select

48

3.4.2 Statistics

49

3.4.3 Plot Enable

49

3.4.4 Cursor

49

3.4.5 Zoom

50

3.4.6 Refresh

50

3.4.7 Harmonics

50

3.4.8 Spot Noise

50

3.4.9 Plot Error

50

3.5 Control Panel

51

3.5.1 DF Registers

52

3.5.2 DF Commands

52

3.5.3 SPI

52

3.5.4 Macros

53

3.5.5 GPIO

53

3.5.6 Customize

54

3.5.7 External Macros

54

4. BILL OF MATERIALS

55

56 DS639DB4

56

DS639DB4 57

57

5. LAYER PLOTS

58

DS639DB4 59

59

60 DS639DB4

60

DS639DB4 61

61

62 DS639DB4

62

DS639DB4 63

63

6. SCHEMATICS

64

DS639DB4 65

65

66 DS639DB4

66

DS639DB4 67

67

68 DS639DB4

68

DS639DB4 69

69

70 DS639DB4

70

DS639DB4 71

71

72 DS639DB4

72

DS639DB4 73

73

7. REVISION HISTORY

74

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