MAS3506D

PRELIMINARY DATA SHEET MICRONAS MAS 3506D WorldSpace Broadcast Channel Audio Decoder Edition July 25, 2001 6251-433-1PD MICRONAS MAS 3506D Contents Page 4 4 4 7 7 7 7 8 8 8 8 8 9 9 9 9 9 9 10 10 11 12 13 13 13 13 13 14 15 16 16 16 16 18 18 19 19 19 19 20 23 28 Section 1. 1.1. 1.2. 2. 2.1. 2.2. 2.2.1. 2.2.1.1. 2.2.1.2. 2.2.2. 2.2.3. 2.2.4. 2.3. 2.4. 2.4.1. 2.4.2. 2.4.3. 2.4.4. 2.5. 2.5.1. 2.5.2. 2.5.3. 3. 3.1. 3.1.1. 3.1.2. 3.1.3. 3.2. 3.3. 3.3.1. 3.3.2. 3.3.3. 3.3.4. 3.3.5. 3.3.6. 3.3.7. 3.3.8. 3.3.9. 3.3.10. 3.4. 3.5. 3.5.1. Title Introduction Features of the MAS 3506D System Overview Functional Description of the MAS 3506D Overview Firmware (Internal Program ROM) Broadcast Channel Synchronization Broadcast Channel Timing Buffer-Controlled Loop Broadcast Channel Demultiplexing MPEG Audio Decoding Baseband Processing Clock Management Power Supply Concept Internal Voltage Monitor DC/DC Converter Stand-by Functions Start-up Sequence Interfaces Broadcast Channel (BC) Input Interface Parallel Input Output Interface (PIO) Audio Output Interface Controlling I2C-Access Device Address I2C Registers and Subaddresses Conventions for the Command Description I2C Control Register (Subaddress 6Ahex) I2C-Data Register (Subaddresses 68hex and 69hex) and the MAS 3506D DSP-Command Syntax Data Formats Run and Freeze (Codes 0hex to 1hex) Select Service Component (Code 5hex) Read Ancillary MPEG Data (Code 6hex) Read SCH-Data (Code 8hex) Write Register (Code 9hex) Write Memory (Codes Ahex and...