Cirrus-logic CRD5378 Uživatelský manuál stáhnout pdf (Strana 33)

CRD5378

DS639RD2 33

3.3 Setup Panel

The Setup panel initializes the evaluation system to perform data acquisition. It consists of the following

sub-panels and controls.

• USB Port

• Digital Filter

• Analog Front End

• Test Bit Stream

• Gain/Offset

• Data Capture

• External Macros

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 63 64

Features 1
General Description 1
REVISION HISTORY 2
DS639RD2 3 3
IMPORTANT NOTICE 3
TABLE OF CONTENTS 4
LIST OF FIGURES 5
LIST OF TABLES 5
1. INITIAL SETUP 6
1.1 Kit Contents 6
1.2 Hardware Setup 6
1.2.1 Default Jumper Settings 7
1.3 Software Setup 8
1.3.1 PC Requirements 8
1.3.3 USBXpress 8
Driver Installation 8
DS639RD2 9 9
1.4 Self-Testing CRD5378 10
1.4.1 Noise Test 10
1.4.2 Distortion Test 11
2. HARDWARE DESCRIPTION 12
2.1 Block Diagram 12
2.2.1.1 External Inputs - INA 13
2.2.1.5 Input RC Filters 14
2.2.1.4 Input Protection 14
2.2.1.6 Common Mode Bias 15
2.2.2 Differential Amplifiers 16
2.2.2.3 Anti-alias RC Filters 17
2.2.4 Delta-Sigma Test DAC 18
2.2.5 Voltage Reference 18
2.2.5.1 VREF_MOD 19
2.3.1.3 Phase Locked Loop 20
Specification Value 21
Maximum Jitter, RMS 300 ps 21
2.3.2 Microcontroller 22
DS639RD2 23 23
2.3.3 RS-485 Telemetry 24
2.3.3.1 CLK, SYNC 25
2.3.3.2 I 26
C - SCL, SDA, Bypass 26
28 DS639RD2 28
2.5.3 Bypass Capacitors 30
3. SOFTWARE DESCRIPTION 31
3.1 Menu Bar 31
3.2 About Panel 32
3.3 Setup Panel 33
3.3.1 USB Port 34
3.3.2 Digital Filter 35
3.3.3 Analog Front End 36
3.3.4 Test Bit Stream 36
3.3.5 Gain/Offset 37
3.3.6 Data Capture 38
3.3.7 External Macros 39
3.4 Analysis Panel 40
3.4.1 Test Select 41
3.4.2 Statistics 42
3.4.3 Cursor 42
3.4.4 Zoom 43
3.4.5 Refresh 43
3.4.6 Harmonics 43
3.4.7 Spot Noise 43
3.4.8 Plot Error 43
3.5 Control Panel 44
3.5.1 DF Registers 45
3.5.2 DF Commands 45
3.5.3 SPI 45
3.5.4 Macros 46
3.5.5 GPIO 46
3.5.6 Customize 47
3.5.7 External Macros 47
4. BILL OF MATERIALS 48
5. LAYER PLOTS 49
50 DS639RD2 50
DS639RD2 51 51
52 DS639RD2 52
DS639RD2 53 53
54 DS639RD2 54
DS639RD2 55 55
56 DS639RD2 56
6. SCHEMATICS 57
58 DS639RD2 58
DS639RD2 59 59
60 DS639RD2 60
DS639RD2 61 61
62 DS639RD2 62
DS639RD2 63 63
64 DS639RD2 64

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