Revision # 1.10    Modifications made on June 15, 2007

• At the Features, D.C. Characteristics sections and other related sections, the previous Operating voltage range of 4.0V~5.5V was changed to 3.3V~5.5V.
• The Product Title was modified from Basic USB Phone OTP MCU to USB Audio MCU.
• The Power Down Operation section has been modified.
• In the USB Interface section a line was added to describe the MUTEB bit in the USB Speaker Volume Control Register.
• The Application Circuit oscillator circuit has been modified.

Revision # 1.00   This was posted on July 18, 2006