CS4812
Fixed Function Multi-Effects Audio Processor
Features
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DSP
Description
The CS4812 is a complete audio effects processing
system on a chip. This device includes a proprietary 24-
bit audio processing engine with considerable on-chip
RAM, two ADCs and two DACs. A full-featured serial
control port allows interfacing to an external host
microcontroller. Other features such as single +5V
operation simplify system design.
The CS4812, combined with Crystal effects firmware, is
the ideal solution for a variety of effects processing
applications where user parameter control is desired.
The Crystal effects firmware provides a messaging
protocol for the serial control port that allows an external
microcontroller to have real-time parameter control over
the audio effects. The complete processor and effects
solution may be evaluated with the CDB4812
demonstration board. The CDB4812 demonstrates a
host of mono electric guitar effects including a digital
spring reverb, delay, chorus, flange and tremolo with
parameter adjustment capability. Please refer to AN195
for more information on application firmware for the
CS4812.
for embedded reverb/effects
applications
– 24-bit Audio Processing Engine
– No External RAM required
– Two 24-bit
∆Σ
ADCs with 100 dB Dyn. Range
– Two 24-bit
∆Σ
DACs with 100 dB Dyn. Range
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Mono
Guitar or Mixer Effects firmware
included
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Real time parameter control via messaging
protocol
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Serial Control Port for microcontroller
interface
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Single +5V supply operation
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100-pin Metric Quad Flat Package (MQFP)
ORDERING INFO
CS4812-KM
-10 to +70°C 100-pin MQFP
CDB4812
Electric Guitar Effects w/
Parameter Controls.
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Advance Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
Cirrus Logic, Inc. 2001
(All Rights Reserved)
JUL ‘01
DS291PP3
1
CIRRUS [ CIRRUS LOGIC ]
