VS1001K Datasheet, PDF(38/40 Page) List of Unclassifed Manufacturers

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VS1001K Datasheet, PDF (38/40 Pages) List of Unclassifed Manufacturers – MPEG AUDIO CODEC

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VLSI

Solution y

DATASHEET

VS1001K

9. VS1001 VERSION CHANGES

9 VS1001 Version Changes

This chapter describes changes between different generations of VS1001.

Note: VS1001k is the ï¬nal, production version of VS1001.

9.1 Changes Between VS1001h and Production Version VS1001k, 2001-08

â¢ When the chip is reset with pin XRESET, XTALO and XTALI are driven to ground.

â¢ Running with normal clock earlier required slightly different clock generation than for clock-

doubled (see Chapters 4.1 and 4.2). This is no longer the case.

â¢ Lots of new SCI register MODE bits: SM DIFF, SM FFWD, SM BASS. For details, see Chap-

ter 6.5.1.

â¢ Default is now to only decode MP3.

â¢ 20..60 mV DAC offset corrected.

â¢ A ï¬rmware bug made it impossible to decode 320 kbits/s MP3 data. This has been corrected.

â¢ A hardware bug made it practically impossible to load code to RAM. This has been corrected.

9.2 Changes Between VS1001g and VS1001h, 2001-05

â¢ Analog voltage requirements have been lowered. Now full gain can be achieved with a 2.7 V

analog input voltage, whereas 3.4 V was needed before.

9.3 Changes Between VS1001d to VS1001g, 2001-03

â¢ Clock is now adjustable, in VS1001d only 24.576 MHz could be used.

â¢ Clock doubler added.

â¢ VS1001d played 48 kHz instead of 12 or 24 kHz, this is corrected.

Version 4.14, 2004-02-10

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