CDB4812 Cirrus Logic, Inc., CDB4812 Datasheet

CDB4812

Manufacturer Part Number

CDB4812

Description

Fixed Function Multi-effects Audio Processor

Manufacturer

Cirrus Logic, Inc.

Datasheet

1.CDB4812.pdf (36 pages)

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Features

ORDERING INFO

Advance Product Information

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.cirrus.com

DSP 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

Mono Guitar or Mixer Effects firmware

included

Real time parameter control via messaging

protocol

Serial Control Port for microcontroller

interface

Single +5V supply operation

100-pin Metric Quad Flat Package (MQFP)

CS4812-KM

CDB4812

Fixed Function Multi-Effects Audio Processor

Electric Guitar Effects w/

Parameter Controls.

-10 to +70°C

100-pin MQFP

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

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

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.

may

968ÃÆ

968ÃÆ!

evaluated

CS4812

with

the

DS291PP3

CDB4812

JUL ‘01

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