CS47048 datasheet(1/34 Pages) CIRRUS

Part #	CS47048

Description	Audio SOC Processor Family

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Manufacturer	CIRRUS [Cirrus Logic]

Direct Link	http://www.cirrus.com

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OCT ’08

CONFIDENTIAL

DS787A7

CS47048 Data Sheet

Advance Product Information

This document contains information for a new product.

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

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 most accurate in the industry

— 32K x 32-bit SRAM with three 2K blocks assignable to either

Y data or program memory.

Integrated DAC & ADC Functionality

— 8 Channels of DAC output: 108dB DR, 98dB THD+N

— 4 Channels 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/O modes (Up to 8 channels per line)

Supports Different Fs Sample Rates

— Three Integrated hardware SRC blocks

— Output can be master or slave

— Supports dual-domain Fs on inputs (S/PDIF Rx and I2S)

— Supports dual-domain Fs on outputs (S/PDIF Tx and I2S)

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 & Boot via SPI / I2C 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: 620µW

The CS47048 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 CS47048

further simplifies system design and reduces total system cost

by integrating the S/PDIF Rx, S/PDIF Tx, analog inputs, analog

outputs, and SRCs to simplify system design. For example, a

hardware SRC can down-sample a 192kHz 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 CS47048 is programmed using the simple yet powerful

Cirrus proprietary DSP Composer™ GUI 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.

DSP programming could not be easier for the novice or small

engineering development group. DSP Composer provides the

programmer with faster time-to-market opportunities and the

ability to implement custom code.

The CS47048 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 page 30 for ordering information

x8

x4

x2

DAC0

text

Coyote32

32-bit 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

SRC3 has 8

independent Channels

for In or Out

4ch

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