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CS47024C-CQZ Fiches technique(PDF) 1 Page - Cirrus Logic

No de pièce CS47024C-CQZ
Description  Audio SOC Processor Family
Download  40 Pages
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Fabricant  CIRRUS [Cirrus Logic]
Site Internet  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS47024C-CQZ Fiches technique(HTML) 1 Page - Cirrus Logic

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Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright 2009 Cirrus Logic
AUG ’09
CONFIDENTIAL
DS787PP1
CS470xx Data Sheet
http://www.cirrus.com
FEATURES
Cost-effective, High-performance 32-bit DSP
— 300,000,000 MAC/S (multiply accumulates per second)
— Dual MAC cycles per clock
— 72-bit accumulators are the highest precision in the industry
— 32K x 32-bit SRAM with three 2K blocks assignable to either
Y data or program memory
Integrated DAC & ADC Functionality
—8Channels of DAC output: 108dB DR, -98dB THD+N
—4Channels of ADC input: 105dB DR, -98dB THD+N
— Integrated 5:1 analog mux feeds one stereo ADC
Configurable Serial Audio Inputs/Outputs
— Integrated 192 kHz S/PDIF Rx
— Integrated 192 kHz S/PDIF Tx
— Supports 32-bit Serial Data @ 192 kHz
— Supports 32-bit audio sample I/O between DSP chips
—TDM I/Omodes (Up to 10/8 channels per line)
Supports Different Fs Sample Rates
—Threeintegrated hardware SRC blocks
— Output can be master or slave
— Supports dual-domain Fs on S/PDIF vs. I2S inputs
DSP Tool Set w/ Private Keys Protect Customer IP
Integrated Clock Manager/PLL
— Flexibility to operate from internal PLL, external crystal,
external oscillator
Input Fs Auto Detection w/ µC Acknowledgement
Host Control & Boot via I2Cor SPISerial Interface
Configurable GPIOs and External Interrupt Input
1.8V Core and a 3.3V I/O that is tolerant to 5V input
Low-power Mode
The CS470xx family is a new generation of audio system-on-
a-chip (ASOC) processors targeted at high fidelity, cost
sensitive
designs.
Derived
from
the
highly
successful
CS48500 32-bit fixed point audio enhancement processor
family, the CS470xx further simplifies system design and
reduces total system cost by integrating the S/PDIF Rx,
S/PDIF Tx, analog inputs, analog outputs, and SRCs. For
example, a hardware SRC can down-sample a 192 kHz
S/PDIF stream to a lower Fs to reduce memory and MIPS
requirements for processing. This integration effectively
reduces the chip count from 3 to 1 which allows smaller, less
expensive board designs.
Target applications are:
— Automotive Head Units & Outboard Amplifiers
— Automotive Processors & Automotive Integration Hubs
— Digital TV
— MP3 Docking Stations
— AVR and DVD RX
— DSP Controlled Speakers (e.g. Subwoofers, Sound
Bars)
The CS470xx is programmed using the simple yet powerful
Cirrus proprietary DSP ComposerGUI development and
pre-production tuning tool. Processing chains
may be
designed using a drag-and-drop interface to place/utilize
functional macro audio DSP primitives and custom audio
filtering blocks. The end result is a software image that is
downloaded to the DSP via serial control port.
The Cirrus Frameworkprogramming environment offers
Assembly and C language compilers and other software
development tools for porting existing code to the CS470xx
family platform.
The CS470xx is available in a 100-pin LQFP package with
exposed
pad
for
better
thermal
characteristics.
Both
Commercial (0
°C to +70°C) and Automotive (-40°C to
+85
°C) temperature grades.
Ordering Information:
See p. 33 for ordering information.
x8
x4
x2
x2
DAC0
text
Crystal
® 32-bit Core
in the CS47048 DSP
DMA
SPI / I
2C
Control
I
2S /
TDM
ADC0/1
I
2S / TDM
I
2S / TDM /
SPDIF
PLL
ROM
S
R
C
2
Clock
Manager
Timers
RAM
GPIO
DAC1
DAC2
DAC3
DAC4
DAC5
DAC6
DAC7
S
R
C
1
ROM
RAM
ROM
RAM
P
Y
32K x 32-bit SRAM with three 2K blocks
Assignable to Program or Y Data memory
I
2S /
TDM /
SPDIF
Stereo Inputs
On Analog in
ADC2/3
DBC
(I
2C Slave)
PIC
ADC’s & DAC’s operate
in Single ended or
Differential mode
S
R
C
3
8ch
8ch
SRC3 has 8
independent Channels
for In or Out
4ch
Feature may differ on CS47024 or CS47028, see p. 8.


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