CS48520 datasheet(1/23 Pages) CIRRUS

部件名	CS48520

功能描述	Cost-effective, High-performance 32-bit DSP

PDF	23 Pages

Scroll/Zoom	100%

制造商	CIRRUS [Cirrus Logic]

网页	http://www.cirrus.com

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1 / 23 page

Copyright

 Cirrus Logic, Inc. 2011

http://www.cirrus.com

DS734F5

OCT '11

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

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™ and Blu-ray Disc® DVD Receivers

 PC Speakers

There 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.

See Section 6 for ordering information.

CS485xx Block Diagram

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

CS485xx

类似零件编号 - CS48520

制造商	部件名	数据表	功能描述
Cirrus Logic	CS48520	524Kb / 26P	32-bit Audio Decoder DSP Family
Cirrus Logic	CS48520-CQZ	524Kb / 26P	32-bit Audio Decoder DSP Family

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