Cirrus Logic CRD49530-USB - Manual (Page 7)

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
C
ontrol H
eader – J
1
1
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
Analog
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
S
P
I /
I2
C
XT
AL
_ O
U
T