CDB48500-USB Cirrus Logic Inc, CDB48500-USB Datasheet - Page 8

• Manufacturer Part Number: CDB48500-USB
• Description: KIT USB EVALUATION FOR CDB48500
• Manufacturer: Cirrus Logic Inc

Specifications of CDB48500-USB

• Main Purpose: Audio, Audio Processing
• Embedded: No
• Utilized Ic / Part: CS485XX
• Primary Attributes: 32-Bit Audio Processor, I2C or SPI
• Secondary Attributes: Graphic User Interface, 12-ch Analog Audio Input & Outputs, Optical Out- S/PDIF
• Description/function: Audio A/D
• Operating Supply Voltage: 9 V to 12 V
• Product: Audio Modules
• Supply Current: 1 A
• For Use With/related Products: CS48520, CS48540, CS48560
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1284

DS784DB1
1.2.1 Identifying CDB48500-USB Components
host PC to the CDB48500 board, and convert GUI commands into the serial control protocol required for
configuring the CS485XX DSP, (2)CS42448 codecs, and CS8416 S/PDIF receiver ICs.
the relationship between the PC, CS485XX, and the CDB USB MASTER
This document will concentrate on the features and basic operation of the CDB48500-USB board.
Detailed information regarding the operation and programming of the CS485XX DSP is covered by the
CS485XX data sheet, CS485XX Hardware User’s Manual, and application note AN298 (see
1.2.2, “Related Documentation” on page 1-4
The CDB48500-USB is a convenient and easy-to-operate evaluation platform. It has been designed to
demonstrate the majority of the CS485XX functions on a small 6" x 6.5" base board. These features
include:
Figure 1-2
identifies the main components of the board.
Note: Not all features of the CS485xx are exercised on the CDB48500.
• PC control of the CS485XX using the DSP Composer™ graphical user interface
• Serial control of audio devices on CDB48500 via I
• Digital audio input of PCM via optical or coaxial S/PDIF (does not support compressed data input)
• Up to 12-channel analog audio input via the two CS42448 audio codecs
• Up to 12-channel analog output through the two CS42448 audio codecs
• Digital audio output of PCM data via optical S/PDIF
• Headphone output jack
• Multi-channel digital audio input via the CDB USB MASTER card (not yet supported)
• Separate input and output clocking domains to allow 1FS-to-2FS audio processing on the CS485XX
• Fast boot – host-controlled master boot (HCMB) of custom applications from 4 Mbit serial SPI flash
• Microphone input with integrated amplifier for Intelligent Room Calibration (IRC) evaluation (future)
• Supports all members of the CS485XX family in the 48-pin LQFP package.
device.
shows the top side of the CDB48500-USB Evaluation Board. The accompanying legend
PC
USB Port
Figure 1-1. CDB48500-USB System Block Diagram
©
Copyright 2008 Cirrus Logic , Inc.
for more details).
Serial Control Interface
Reset Signals
Board Control Signals
Audio Data (Future Development)
Introducing the CDB48500-USB Customer Development Kit
2
C
®
or SPI™ protocols
CDB48500
CDB48500--USB Evaluation Kit Guide
Figure 1-1
Section
shows
1-2