UDA1334TS is a low power audio DAC chip produced by PHILIPS company. It supports sampling frequencies from 8 to 100 kHz and integrates digital filter and DAC
The UDA1334TS is a low‑power audio DAC offered by Philips Semiconductors. It supports 2‑channel audio conversion with sample rates from 8 kHz to 100 kHz, multiple data formats (I²S‑bus and LSB‑justified), built‑in de‑emphasis, mute control, and standby mode. The device operates in slave mode only and requires an external system clock and digital audio interface signals.
The data sheet details electrical characteristics such as supply voltage ranges (1.8 V–3.6 V), current consumption in normal and sleep modes, ambient temperature limits (‑40 °C to +85 °C), and output performance including RMS output voltage and THD+N figures. Pin configurations, block diagram, and functional descriptions are provided to aid designers in integrating the DAC into portable audio products.
| Supply voltage (Vopa / Vopp) | 1.8 V – 3.6 V |
|---|---|
| Analog supply current (normal operation) | 2.1 mA |
| Digital supply current (normal operation) | 1.2 mA |
| Ambient temperature range | -40 °C to +85 °C |
The device operates with a supply voltage between 1.8 V and 3.6 V.
No, the internal filter eliminates the need for an external analog post‑filter.
The analog supply current is 2.1 mA and the digital supply current is 1.2 mA in normal operation.