MAS3506D datasheet(2/52 Pages) MICRONAS

Part #	MAS3506D

Description	WorldSpace WorldSpace Audio Decoder

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Manufacturer	MICRONAS [Micronas]

Direct Link	http://www.micronas.com

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MAS 3506D

PRELIMINARY DATA SHEET

2

Micronas

Contents

Page

Section

Title

4

1.

Introduction

4

1.1.

Features of the MAS 3506D

4

1.2.

System Overview

7

2.

Functional Description of the MAS 3506D

72.1.

Overview

7

2.2.

Firmware (Internal Program ROM)

7

2.2.1.

Broadcast Channel Synchronization

8

2.2.1.1.

Broadcast Channel Timing

8

2.2.1.2.

Buffer-Controlled Loop

8

2.2.2.

Broadcast Channel Demultiplexing

8

2.2.3.

MPEG Audio Decoding

8

2.2.4.

Baseband Processing

9

2.3.

Clock Management

9

2.4.

Power Supply Concept

9

2.4.1.

Internal Voltage Monitor

9

2.4.2.

DC/DC Converter

9

2.4.3.

Stand-by Functions

9

2.4.4.

Start-up Sequence

10

2.5.

Interfaces

10

2.5.1.

Broadcast Channel (BC) Input Interface

11

2.5.2.

Parallel Input Output Interface (PIO)

12

2.5.3.

Audio Output Interface

13

3.

Controlling

13

3.1.

I2C-Access

13

3.1.1.

Device Address

13

3.1.2.

I2C Registers and Subaddresses

13

3.1.3.

Conventions for the Command Description

14

3.2.

I2C Control Register (Subaddress 6Ahex)

15

3.3.

I2C-Data Register (Subaddresses 68hex and 69hex)

and the MAS 3506D DSP-Command Syntax

16

3.3.1.

Data Formats

16

3.3.2.

Run and Freeze (Codes 0hex to 1hex)

16

3.3.3.

Select Service Component (Code 5hex)

16

3.3.4.

Read Ancillary MPEG Data (Code 6hex)

18

3.3.5.

Read SCH-Data (Code 8hex)

18

3.3.6.

Write Register (Code 9hex)

19

3.3.7.

Write Memory (Codes Ahex and Bhex)

19

3.3.8.

Read Register (Code Dhex)

19

3.3.9.

Read Memory (Codes Ehex and Fhex)

19

3.3.10.

Default Read

20

3.4.

Control Registers

23

3.5.

Control and Status Memory

28

3.5.1.

Volume Matrix

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