CDB4923 Ver la hoja de datos (PDF) - Cirrus Logic
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CDB4923 Datasheet PDF : 50 Pages
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CDB4923
CDB49300
Evaluation Board for CS4923/CS49300 Families
Features
l CDB4923 demonstrates 5.1 channel decode
capability of the CS4923 family
l CDB49300 demonstrates 5.1 channel
decode capability of CS49300 family
l 6 discrete analog outputs driven by CS4340
DACs
l 4 S/PDIF optical outputs
l Accepts analog input, S/PDIF digital input,
Bursty compressed data
l Discrete PLL which can provide multiple
sampling frequencies
l Interfaces to a personal computer through
the parallel port
l Stake headers provide convenient location
for direct wiring to control signals from off-
board microcontroller
l Interface for external memory card
l Digital and analog patch areas
I
Description
The CDB4923 and CDB49300 customer development
boards provide the means to fully evaluate the
CS4923/4/5/6/7/8 and CS49300 family of audio decod-
ers. Compressed data can be delivered in IEC61937
format via the S/PDIF port and in bursty mode via the PC
interface. PCM data can be accepted through the digital
input connectors or from the on-board ADC. Six chan-
nels of audio are provided on the six analog outputs and
on three optical S/PDIF transmitters. CLKIN for the DSP
can be derived either from the on-board oscillator or the
external PLL. MCLK can be extracted from incoming
S/PDIF streams, generated with the external PLL, or
mastered by the audio decoder.
The CDB4923/300 incorporates a Crystal Multichannel
Audio Decoder, the CS4340 24-Bit Audio D/A Converter,
the CS8414 Digital Audio Interface Receiver, the
CS8404A Digital Audio Interface Transmitter, and the
CS5334 20-Bit Stereo A/D Converter.
ORDERING INFORMATION
CDB4923
CDB49300
Evaluation Board
Evaluation Board
Digital Input
Digital Output
CS8404A CS8404A CS8404A
RESET
DIGITAL SOUND
™
Control
Interface
PLD
OSC
+2.5V
+3.3V
CS492x
CS493xx
CS4340
CS4340
CS4340
CS5334
Analog
Output
Stereo
Analog In
C R Y S T A L®
PROCESSING
Preliminary Product Information
Patch Area
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2000
(All Rights Reserved)
JAN ‘00
DS262DB2
1
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