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Description as follow:

The VS1003B is a VLSI solution audio decoder. The SPI bootloader that is available in VS1003B chips can be used to add new features to the system. Patch codes and new codecs can be automatically loaded from SPI EEPROM at startup. One interesting application is a single-chip standalone player.

Parametrics

VS1003B absolute maximum ratings: (1)Analog Positive Supply AVDD: -0.3 2.85 V; (2)Digital Positive Supply CVDD: -0.3 2.85 V; (3)I/O Positive Supply IOVDD: -0.3 3.6 V; (4)Current at Any Digital Output: 50 mA; (5)Voltage at Any Digital Input: -0.3 IOVDD+0.31 V; (6)Operating Temperature: -40 +85 ℃; (7)Storage Temperature: -65 +150 ℃.

Features

VS1003B features: (1)Automatically starts playing from the first file after power-on; (2)Power-on defaults are configurable; (3)Transfer speed 4.8 Mbit/s (3.5￡12.288MHz clock); (4)High transfer speed supports even 48 kHz 16-bit stereo WAV files; (5)Watchdog prevents lockup situations in MMC communication.

Diagrams