Cirrus-logic CRD5376 User Manual download pdf (Page 3)

CRD5376

DS612RD2 3

TABLE OF CONTENTS

1. INITIAL SETUP ......................................................................................................................... 5

1.1 Kit Contents ....................................................................................................................... 5

1.2 Hardware Setup ................................................................................................................. 5

1.2.1 Default Jumper Settings ........................................................................................ 6

1.3 Software Setup .................................................................................................................. 7

1.3.1 PC Requirements .................................................................................................. 7

1.3.2 Seismic Evaluation Software Installation .............................................................. 7

1.3.3 USBXpress Driver Installation ............................................................................... 7

1.3.4 Launching the Seismic Evaluation Software ......................................................... 8

1.4 Self-Testing CRD5376 .......................................................................................................9

1.4.1 Noise Test ............................................................................................................. 9

1.4.2 Distortion Test ..................................................................................................... 10

2. HARDWARE DESCRIPTION ................................................................................................. 11

2.1 Block Diagram ................................................................................................................ 11

2.2 Analog Hardware ............................................................................................................. 12

2.2.1 Analog Inputs ...................................................................................................... 12

2.2.2 Differential Amplifiers .......................................................................................... 16

2.2.3 Delta-Sigma Modulators ..................................................................................... 17

2.2.4 Delta-Sigma Test DAC ........................................................................................ 18

2.2.5 Voltage Reference .............................................................................................. 18

2.3 Digital Hardware .............................................................................................................. 19

2.3.1 Digital Filter ......................................................................................................... 19

2.3.2 Microcontroller .................................................................................................... 22

2.3.3 Phase Locked Loop ............................................................................................ 25

2.3.4 RS-485 Telemetry ............................................................................................... 26

2.3.5 UART Connection ............................................................................................... 28

2.3.6 External Connector ............................................................................................. 28

2.4 Power Supplies ................................................................................................................ 28

2.4.1 Analog Voltage Regulators ................................................................................. 29

2.5 PCB Layout ..................................................................................................................... 29

2.5.1 Layer Stack ......................................................................................................... 29

2.5.2 Differential Pairs .................................................................................................. 30

2.5.3 Bypass Capacitors .............................................................................................. 31

3. SOFTWARE DESCRIPTION .................................................................................................. 32

3.1 Menu Bar ......................................................................................................................... 32

3.2 About Panel ..................................................................................................................... 33

3.3 Setup Panel ..................................................................................................................... 34

3.3.1 USB Port ............................................................................................................. 35

3.3.2 Digital Filter ......................................................................................................... 36

3.3.3 Analog Front End ................................................................................................ 37

3.3.4 Test Bit Stream ................................................................................................... 37

3.3.5 Gain/Offset .......................................................................................................... 38

3.3.6 Data Capture ....................................................................................................... 39

3.3.7 External Macros .................................................................................................. 40

3.4 Analysis Panel ................................................................................................................. 41

3.4.1 Test Select .......................................................................................................... 42

3.4.2 Statistics .............................................................................................................. 43

3.4.3 Plot Enable .......................................................................................................... 43

3.4.4 Cursor ................................................................................................................. 44

3.4.5 Zoom ................................................................................................................... 44

3.4.6 Refresh ............................................................................................................... 44

1 2 3 4 5 6 7 8 ... 67 68

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Cirrus-logic CRD5376 User Manual Page 3

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