Cirrus Logic CK4970x4 - Manual (Page 22)

2-1 Copyright 2012 Cirrus Logic, Inc. DS898CK7
Introducing the CK49x Evaluation System
CK49x User’s Manual
Chapter 2
Introduction to CK49x Evaluation System
2.1 Introducing the CK49x Evaluation System
The CK49x Evaluation System is composed of the CDB49x base board and the DC4953x daughter card
where the C24953x4 DSP is installed. The CK49x Evaluation System provides a practical platform for
emulating a typical multi-channel audio system application. The on-board MCU provides a USB control
port used to interface the host PC to the CK49x Evaluation System, and convert GUI commands into the
serial control protocol required for configuring the CS4953x4 DSP, CS42528 and CS2000 audio ICs, and
the HDMI interface chips. Figure 2-1 shows the CK49x Evaluation System when controlled by the user’s
PC. Figure 2-2 shows the CK49x Evaluation System operating in Standalone mode. Standalone mode is
described in detail in Chapter 5 .
Figure 2-1. CK49x Evaluation System Block Diagram Using PC Control
Figure 2-2. CK49x System Block Diagram in Standalone Mode
HD
MI
USB Port
Analog Audio
PC
S/
PD
IF
Multi-channel I 2 S
CDB49x
DC4
953x
Digital Audio
Card
LCD
HDMI
User Input
Analog Audio
S/PDI
F
Multi-channel I 2 S
CDB49x
DC4
953x
Digital Audio
Card
LCD