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CRD49530-USB System Description
CRD49530-USB User’s Manual
DS705RD3 Copyright 2008 Cirrus Logic 1-2
1.2.2 Software Requirements
• Cirrus Evaluation Software Package (available from your local Cirrus Logic representative)
1.2.3 Support Hardware Requirements
• Digital or Analog Audio Source (e.g. DVD player, PC with a digital audio card/device)
• Amplified Speakers for audio playback (e.g. powered PC speakers, AVR/amp + speakers)
1.2.4 Cabling Requirements
• Digital Audio Inputs – S/PDIF Optical Cables, RCA Audio cables (Connect to digital audio card, audio
analyzer, or DVD player.)
• Digital Audio Output – S/PDIF Optical Cables (Connect to digital audio card, audio analyzer, or AVR.)
• Analog Audio Inputs – RCA Audio Cables (Connect CRD49530 line-level inputs to analog audio source.)
• Analog Audio Outputs – RCA Audio Cables (Connect CRD49530 line-level outputs to powered speakers.)
1.3 CRD49530-USB System Description
A detailed block diagram of the CRD49530-USB Customer Reference Design is shown below in
Figure 1-2. The sections that follow provide a detailed description of each block.
Figure 1-2. CRD49530-USB Block Diagram
SPI / I2C
Control Header – J11
CS42448
CS4953xx
CS8416
Analog
In
Analog
In
Analog
In
Analog
In
Analog
In
6x
Analog
In
MIC In
MIC
Preamp
4x
S/PDIF
In
4x
S/PDIF
In
4x
S/PDIF
In
4x
S/PDIF
In
S/PDIF
Out
Analog
In
Analog
In
Analog
In
Analog
In
Analog
In
8x
Analo
g
Out
HDMI Clocks/Data
SPI FLASH
FLASH
SDRAM
SPI Master
Memory Bus
DSP_RESET
BRD_RESET
HDMI_SPDIF
0
1
ADC Data
S/PDIF Data
Audio Clocks
CS42448_RESET
SPDIF IN
SPDIF OUT
SPI / I2C
XTAL_OUT
- CRD49530-USB 1
- CRD49530-USB User’s Manual 2
- Contents 3
- Chapter 1 6
- Kit Contents and Requirements 6
- 1.2 Requirements 6
- 1.2.2 Software Requirements 7
- 1.2.4 Cabling Requirements 7
- 1.3.1 Audio Inputs 8
- 1.3.2 Audio Outputs 8
- 1.3.3 Control Header 9
- 1.3.6 CS4953xx Audio DSP 9
- 1.3.7 CS8416 S/PDIF RX 10
- 1.3.8 CS42448 Audio Codec 10
- 1.3.9 Memory 10
- CS4953xx CS42448 11
- CS4953xx 12
- 1.4 Other Useful Information 14
- CRD49530-USB User’s Manual 15
- CRD49530 16
- A. CS4953xx DSP, U5 17
- CRD49530--USB User’s Manual 18
- Chapter 3 20
- 3.1.3 Connecting to a PC 23
- Chapter 4 26
- 4.1 Introduction 26
- Pass-through 26
- 4.2.1 System Block 28
- 4.3.1 S/PDIF Audio Input 29
- 4.3.2 Analog Audio Input 30
- 4.3.3 USB (I 30
- S) Audio Input 30
- 4.3.4 DAI Input 31
- 4.4.1 DAO Output of CS4953xx 32
- ) / Memory Usage 33
- Chapter 5 34
- CRD49530-USB Schematics 34
- 5.1 Introduction 34
- 5.2.3 Memory 35
- 5.2.4 S/PDIF Receiver 35
- 5.2.5 Audio CODEC 36
- 5.2.6 Input/Output Filters 36
- 5.2.8 Power and Connectors 37
- Obtaining Schematic Updates 38
- Figure 5-4. S/PDIF Receiver 42
- Figure 5-5. CS42448 CODEC 43
- Figure 5-7. MIC Pre-AMP 45
- Chapter 6 48
- Troubleshooting 48
- 6.1 Troubleshooting Guide 48
- Revision History 49
- Revision History 50
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