CS4811 Datasheet, PDF (1/24 Pages) Cirrus Logic – Fixed Function Multi-Effects Audio Processor

CS4811
Fixed Function Multi-Effects Audio Processor
Features
Description
l Audio Processor for embedded
reverb/effects applications
– Proprietary 24-bit Audio Processing Engine
– On-chip RAM (No external RAM required)
– On-chip 24-bit ∆Σ ADC with 100 dB Dyn. Range
– On-chip 24-bit ∆Σ DAC with 100 dB Dyn. Range
– Automatically boots firmware from external
serial EEPROM
l Firmware available for Guitar Effects or Mixer
Effects applications
l Single +5 V Supply
l 100-pin Metric Quad Flat Pack (MQFP)
The CS4811 is a complete audio effects processing
system on a chip. This device integrates a proprietary 24-
bit audio processing engine, large on-chip RAM
memories, and a high performance 24-bit audio codec. A
serial control port allows the device to boot firmware from
a compact and low cost SPI or I²C serial EEPROM. Other
features such as single +5 V operation simplify system
design.
Firmware for the CS4811 is provided by Cirrus Logic.
There are two different firmware codes available; one for
guitar effects and one for audio mixers. The guitar effects
firmware provides a host of electric guitar effects includ-
ing spring reverb, delay, chorus, flange and tremolo.
The mixer effects firmware provides a suite of effects
such as digital reverb, delay and chorus which are suit-
able for use in audio mixers, karaoke and acoustic
instrument amplifiers. The CDB4811GTR and
CDB4811MXR evaluation boards allow easy evaluation
of the CS4811 device and the associated firmware.
ORDERING INFO
CS4811-KM
CDB4811GTR-01
CDB4811MXR-01
-10 to +70°C 100-pin MQFP
Guitar Effects Evaluation Board
Mixer Effects Evaluation Board
I
XTO
CLOCK
MANAGER
XTI
AIN+
AIN-
ADC
SPI/I²C SCL/CCLK SDA/CDOUT AD1/CDIN
AD0/CS
RST
SERIAL CONTROL PORT (SPI or I²C)
24-BIT AUDIO
PROCESSING
ENGINE
DIGITAL FILTER
DAC
RAM
VOLTAGE
REFERENCE
AOUT+
AOUT-
CMOUT
CMFILT+
CMFILT-
OVL
PIO0 PIO1 PIO2 PIO3
Advance Product Information
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
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. 2000
(All Rights Reserved)
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