UAC 3552A
PRELIMINARY DATA SHEET
Contents
Page
Section
Title
4
1.
Introduction
5
1.1.
Features
6
2.
Functional Description
Hardware
6
2.1.
6
2.1.1.
USB Interface
6
2.1.1.1.
2.1.1.2.
2.1.1.3.
2.1.2.
Transceiver
6
Interface Engine
Microcontroller
6
6
Audio Control Interface
Audio Streaming Interface
Audio Processing Unit
Analog Back-end
DAC
6
2.1.3.
6
2.1.4.
6
2.1.5.
7
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.
8
Analog Low-pass
Postfilter Op Amps
Input Mixer
8
8
9
Analog Volume Control
Line-out/Headphone Amplifier
General Purpose I/O
Special I/O
9
9
10
10
10
10
10
10
10
10
10
10
11
11
11
11
12
12
13
13
13
13
13
2.1.7.
2.1.7.1.
2.1.7.2.
2.1.7.3.
2.1.8.
SOF (Start of Frame)
AUXEN
SUSPEND
Clock System
2.2.
Software
2.2.1.
USB Microcontroller Software
Chapter 9 Functions
Device Descriptor
String Descriptor
HID Report Descriptor
Audio Processing Software
Sample Rate Converter
Automatic Gain Control
Bass Control
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.
Treble Control
Bass Boost Control
Parametric Equalizer
Volume and Balance Control
Mute Control
2.2.3.1.
Oversampling
2
Micronas
MICRONAS [ MICRONAS ]
