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CS48500 Datasheet(PDF) 1 Page - Cirrus Logic

Part No. CS48500
Description  Cost-effective, High-performance 32-bit DSP
Download  28 Pages
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com

CS48500 Datasheet(HTML) 1 Page - Cirrus Logic

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©Copyright 2006 Cirrus Logic, Inc.
DEC ’06
CS48500 Data Sheet
Advance Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
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 / 3.3V I/O that are +5V Tolerant
Low-power Mode
— "Energy-Star Ready" via low-power mode, 350uW in standby
Control 1
12 Ch PCM
Audio Out
12 Ch. Audio In /
6 Ch. SACD In
Differentiating from the legacy Cirrus multi-standard, multi-
channel decoders, this new CS48500 family is still based on
the same high-performance 32-bit fixed point DSP 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
In these applications there are a wide variety of licensable DSP
IP codes available today from:
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-
The CS48500 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 23 for ordering information

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