The UDA1384 is a multi-channel audio converter consisting of 4 ADCs and 6 DACs, supporting a 24-bit data path.
The Philips UDA1384 is a single-chip multichannel audio coder-decoder designed for digital audio equipment incorporating surround features. It integrates four plus one Analog-to-Digital Converters (ADC) and six Digital-to-Analog Converters (DAC), employing bitstream conversion techniques to support various data transfer formats including 2S-bus, MSB-justified, and LSB-justified modes.
The device supports sample frequencies ranging from 16 kHz to 200 kHz depending on the component. It includes advanced audio configuration features such as programmable gain amplifiers for inputs, differential audio outputs, DSD playback support, digital de-emphasis, volume control, and mute functions via L3-bus or I2C-bus interfaces.
| Power supply voltage (ADC/DAC) | 2.7 V to 3.6 V |
|---|---|
| Digital inputs tolerance | 5 V tolerant |
| Data path width | 24-bit |
| Audio ADC sampling frequency range | 16 kHz to 100 kHz |
| Voice ADC sampling frequency range | 7 kHz to 50 kHz |
| Audio DAC sampling frequency range | 16 kHz to 200 kHz |
| Number of voice inputs | 1 single-ended |
| Number of audio outputs | 6 differential (3 x stereo) |
The device operates in slave mode only, requiring an external system to provide either the system clock or the word clock.
Control is selectable via L3-bus or I2C-bus microcontroller interface.
The DAC supports a frequency range of 16 kHz to 200 kHz.