Cirrus-logic CRD49530-USB Manuel d'utilisateur Page 7

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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
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