Audio Processor. CS4811 Datasheet

CS4811 Processor. Datasheet pdf. Equivalent

CS4811 Datasheet
Recommendation CS4811 Datasheet
Part CS4811
Description Fixed Function Multi-Effects Audio Processor
Feature CS4811; www.DataSheet4U.com CS4811 Fixed Function Multi-Effects Audio Processor Features l Audio Descript.
Manufacture Cirrus Logic
Datasheet
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Cirrus Logic CS4811
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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
SPI/I2C SCL/CCLK SDA/CDOUT AD1/CDIN
AD0/CS
RST
XTO CLOCK
MANAGER
XTI
SERIAL CONTROL PORT (SPI or I2C)
AOUT+
24-BIT AUDIO
DIGITAL FILTER
DAC
AIN+ PROCESSING
.comAIN- ADC
ENGINE
AOUT-
RAM
VOLTAGE
REFERENCE
CMOUT
CMFILT+
CMFILT-
t4UOVL PIO0 PIO1 PIO2 PIO3
heeAdvance Product Information
ataSP.O. Box 17847, Austin, Texas 78760
.D(512) 445 7222 FAX: (512) 445 7581
www 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)
SEP ‘00
DS486PP2
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Cirrus Logic CS4811
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CS4811
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4
ADC CHARACTERISTICS ....................................................................................................... 4
DAC CHARACTERISTICS ....................................................................................................... 5
SWITCHING CHARACTERISTICS .......................................................................................... 6
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MASTER.................................. 7
SWITCHING CHARACTERISTICS - CONTROL PORT - I2C MASTER .................................. 8
RECOMMENDED OPERATING CONDITIONS ....................................................................... 9
DIGITAL CHARACTERISTICS ................................................................................................. 9
SWITCHING CHARACTERISTICS - PROGRAMMABLE I/O................................................... 9
2. TYPICAL CONNECTION DIAGRAMS ................................................................................... 10
3. FUNCTIONAL DESCRIPTION ............................................................................................... 12
3.1 Overview .......................................................................................................................... 12
3.2 Analog Inputs ................................................................................................................... 12
3.2.1 Line Level Inputs ................................................................................................. 12
3.2.2 Digital High Pass Filter ........................................................................................ 12
3.3 Analog Outputs ................................................................................................................ 13
3.3.1 Line Level Outputs .............................................................................................. 13
3.4 Clock Generation ............................................................................................................. 13
3.4.1 Clock Source ....................................................................................................... 13
3.5 Serial Control Port ............................................................................................................ 14
3.5.1 SPI Bus ............................................................................................................... 14
3.5.1.1 SPI Mode ................................................................................................ 14
3.5.2 I2C Bus ................................................................................................................ 14
3.5.2.1 I2C Mode ................................................................................................ 14
3.6 Resets .............................................................................................................................. 15
4. POWER SUPPLY AND GROUNDING ................................................................................... 16
5. PIN DESCRIPTIONS .............................................................................................................. 17
6. PARAMETER DEFINITIONS .................................................................................................. 21
7. PACKAGE DIMENSIONS ..................................................................................................... 22
Contacting Cirrus Logic Support
For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:
mhttp://www.cirrus.com/corporate/contacts/
.coPreliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product infor-
mation describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information
Ucontained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of
t4any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, nor for infringements of patents or other rights
of third parties. This document is the property of Cirrus Logic, Inc. and implies no license under patents, copyrights, trademarks, or trade secrets. No part of
ethis publication may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photographic, or
otherwise) without the prior written consent of Cirrus Logic, Inc. Items from any Cirrus Logic website or disk may be printed for use by the user. However, no
epart of the printout or electronic files may be copied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical,
hphotographic, or otherwise) without the prior written consent of Cirrus Logic, Inc.Furthermore, no part of this publication maybe used as a basis for manufacture
Sor sale of any items without the prior written consent of Cirrus Logic, Inc. The names of products of Cirrus Logic, Inc. or other vendors and suppliers appearing
in this document may be trademarks or service marks of their respective owners which may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trade-
tamarks and service marks can be found at http://www.cirrus.com.
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Cirrus Logic CS4811
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CS4811
LIST OF FIGURES
Figure 1. SPI Control Port Timing ............................................................................. 7
Figure 2. I2C Control Port Timing .............................................................................. 8
Figure 3. Typical Connection Diagram, Single-ended Input .................................... 10
Figure 4. Typical Connection Diagram, I2C Mode .................................................. 11
Figure 5. Typical Connection Diagram, SPI Mode .................................................. 11
Figure 6. Optional Line Input Buffer ........................................................................ 12
Figure 7. Butterworth Output Filters ........................................................................ 13
Figure 8. Output Mute Circuit .................................................................................. 13
Figure 9. Control Port Timing, SPI Master Mode Self-Boot ..................................... 14
Figure 10.Control Port Timing, I2C Master Mode Self-Boot ..................................... 15
Figure 11.CS4811 Suggested Layout ...................................................................... 16
Figure 12.Pin Assignments ...................................................................................... 17
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