GENERAL DESCRIPTION
The UDA1335H is a stereo CMOS codec incorporating bitstream converters designed for implementation in USB-compliant audio peripherals and multimedia audio applications. The UDA1335H is an adaptive asynchronous sink USB audio device with a continuous sampling frequency range from 5 to 55 kHz. It contains a USB interface, an embedded microcontroller, an Analog-to-Digital Interface (ADIF) and an Asynchronous Digital-to-Analog Converter (ADAC).

FEATURES
General
• USB stereo audio record and playback system with 20 bits analog-to-digital conversion (with 5 to 55 kHz sample frequency range) and adaptive 20 bits digital-to-analog conversion (with 5 to 55 kHz sample frequency range) with integrated filtering
• USB-compliant audio/HID device
• Supports 12 Mbits/s ‘full speed’ serial data transmission
• Fully automatic ‘Plug-and-Play’ operation
• Supports multiple audio data formats (8, 16 and 24 bits)
• 5.0 and 3.3 V power supply
• Low power consumption
• Efficient power management
• On-chip master clock oscillators, only an external crystal is required
• High linearity
• Wide dynamic range
• Superior signal-to-noise ratio
• Low total harmonic distortion
• Supports headphone and line output
• Partly programmable USB descriptors and configuration via the I2C-bus.

Sound processing (for digital-to analog conversion)
• Separate digital volume control for left and right channel
• Soft mute
• Digital bass and treble tone control
• External Digital Sound Processor (DSP) option possible via standard I2S-bus or Japanese digital I/O format
• Selectable clipping prevention
• Selectable Dynamic Bass Boost (DBB)
• On-chip digital de-emphasis.

APPLICATIONS
• USB monitors
• USB speakers
• USB headsets
• USB telephone/answering machines
• USB links in consumer audio devices.