UAC3552A

( DataSheet : www.DataSheet4U.com ) PRELIMINARY DATA SHEET MICRONAS UAC 3552A Universal Serial Bus DAC Edition Nov. 9, 1999 6251-487-1PD MICRONAS www.DataSheet4U.com UAC 3552A Contents Page 4 5 6 6 6 6 6 6 6 6 6 6 7 8 8 8 9 9 9 10 10 10 10 10 10 10 10 10 10 11 11 11 11 12 12 13 13 13 13 13 Section 1. 1.1. 2. 2.1. 2.1.1. 2.1.1.1. 2.1.1.2. 2.1.1.3. 2.1.2. 2.1.3. 2.1.4. 2.1.5. 2.1.5.1. 2.1.5.2. 2.1.5.3. 2.1.5.4. 2.1.5.5. 2.1.5.6. 2.1.6. 2.1.7. 2.1.7.1. 2.1.7.2. 2.1.7.3. 2.1.8. 2.2. 2.2.1. 2.2.1.1. 2.2.1.2. 2.2.1.3. 2.2.1.4. 2.2.2. 2.2.2.1. 2.2.2.2. 2.2.2.3. 2.2.2.4. 2.2.2.5. 2.2.2.6. 2.2.2.7. 2.2.3. 2.2.3.1. Title Introduction Features Functional Description Hardware USB Interface Transceiver Interface Engine Microcontroller Audio Control Interface Audio Streaming Interface Audio Processing Unit Analog Back-end DAC Analog Low-pass Postfilter Op Amps Input Mixer Analog Volume Control Line-out/Headphone Amplifier General Purpose I/O Special I/O SOF (Start of Frame) AUXEN SUSPEND Clock System Software USB Microcontroller Software Chapter 9 Functions Device Descriptor String Descriptor HID Report Descriptor Audio Processing Software Sample Rate Converter Automatic Gain Control Bass Control Treble Control Bass Boost Control Parametric Equalizer Volume and Balance Control Mute Control Oversampling PRELIMINARY DATA SHEET 2 Micronas PRELIMINARY DATA SHEET UAC 3552A Contents, continued Page 14 14 14 16 16 16 17 17 18 19 19 20 22 26 26 27 28 Section 3. 3.1. 3.2. 3.3. 3.3.1. 3...