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CS48560-DQZ Scheda tecnica(PDF) 1 Page - Cirrus Logic

Il numero della parte CS48560-DQZ
Spiegazioni elettronici  32-bit Audio Decoder DSP Family
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

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Copyright 2009 Cirrus Logic, Inc.
FEB ’09
CONFIDENTIAL
DS734F3
http://www.cirrus.com
CS485xx Family Data Sheet
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 most accurate in the industry
— 24k x 32 SRAM, 2k blocks - assignable to data or program
— Internal ROM contains a variety of configurable sound
enhancement feature sets
— 8-channel internal DMA
— Internal watch-dog DSP lock-up prevention
DSP Tool Set w/ Private Keys for Protecting Customer IP
Configurable Serial Audio Inputs/Outputs
— Configurable for all input/output types
— Maximum 32-bit @ 192 kHz
— Supports 32-bit audio sample I/O between DSP chips
— TDM input modes (multiple channels on same line)
— 192 kHz SPDIF transmitter
— Multi-channel DSD direct stream digital SACD input
Supports Two Different Input Fs Sample Rates
— Output can be master or slave
— Dual processing path capability
— Input supports dual domain slave clocking
— Hardware assist time sampling for sample rate conversion
Integrated Clock Manager/PLL
— Can operate from external crystal, external oscillator
Input Fs Auto Detection
Host & Boot via Serial 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
— “Energy Star® Ready” in low-power mode, 268 µW in standby
32-bit
DSP
D
M
A
P
X
Y
Serial
Control 1
12 Ch PCM
Audio Out
GPIO
Debug
Watchdog
TMR1
TMR2
PLL
S/PDIF
12 Ch. Audio In /
6 Ch. SACD In
Differentiating from the legacy Cirrus multi-standard, multi-
channel decoders, this new CS485xx family is still based on
the same high-performance 32-bit fixed point Digital Signal
Processor core but instead is equipped with much less
memory, tailoring it for more cost-effective applications
associated with multi-channel and virtual-channel sound
enhancements. Target applications are:
— Digital Televisions
— Multimedia Peripherals
—iPod® Docking Stations
— Automotive Head Units
— Automotive Outboard Amplifiers
— HD-DVD & Blu-ray Disc DVD Receivers
— PC Speakers
There are are also a wide variety of licensable DSP codes
available today as seen by the following examples:
Cirrus also has developed, or is developing their own royalty-
free versions of popular features sets like Cirrus Bass
Manager, Cirrus Dynamic Volume Leveler, Cirrus Original
Multichannel Surround, Cirrus Virtual Speaker & Cirrus 3D-
Audio.
The CS485xx family
is
programmed using the Cirrus
proprietary
DSP
Composer
GUI
development
tool.
Processing chains may be designed using a drag-and-drop
interface
to
place/utilize
functional
macro
audio
DSP
primitives. The end result is a software image that is down-
loaded to the DSP via serial host or serial boot modes.
Ordering Information:
See page 20 for ordering information
®


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