UDA1334ATS/N2,118

ADCs/DACs - Special Purpose Overview

The UDA1334ATS is a single-chip, low-power stereo digital-to-analog converter (DAC) utilizing bitstream conversion techniques. It integrates an on-board phase-locked loop (PLL) for system clock generation and supports I2S-bus and LSB-justified serial data formats with word lengths up to 24 bits. Operating on a 2.4 V to 3.6 V supply, the device features high linearity, wide dynamic range, and low distortion. Key digital functions include de-emphasis for 44.1 kHz sampling frequencies and a mute control. The integrated interpolation filter and noise shaper eliminate the need for external analog post-filtering.

ADCs/DACs - Special Purpose Feature Summary

• Integrated PLL supporting asynchronous audio mode (clock regeneration from WS signal) and video mode (generating clocks from 27 MHz input).
• Supports I2S-bus and LSB-justified formats with sample frequencies ranging from 16 kHz to 100 kHz in asynchronous mode.
• High performance metrics including 100 dB signal-to-noise ratio at 44.1 kHz and -90 dB THD+N at 0 dBFS.
• Low power consumption of approximately 18 mW in audio mode and 24 mW in video mode.

ADCs/DACs - Special Purpose Applications

• Portable digital audio equipment requiring playback functionality.
• Systems lacking an available audio-related system clock.
• Low-voltage consumer electronics applications.

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized NXP Semiconductors distributors or certified suppliers. Confirm package integrity and pin alignment prior to installation. Ensure storage conditions adhere to moisture sensitivity guidelines for surface mount packages to prevent damage during soldering processes.

ADCs/DACs - Special Purpose Selection Notes

Select this component for designs requiring a compact, low-power stereo DAC solution without external filtering. Choose audio mode when the host system cannot provide a master clock, allowing the device to regenerate timing from the Word Select signal. Choose video mode if a stable 27 MHz reference is available to generate precise system clocks for slave synchronization.

ADCs/DACs - Special Purpose Part Context

The UDA1334ATS belongs to NXP's legacy portfolio of audio interface components. It is housed in a 16-lead SSOP plastic shrink small outline package (SOT369-1). The datasheet supersedes previous versions dated February 9, 2000, establishing the current product specification for this integrated circuit.

ADCs/DACs - Special Purpose Replacement Considerations

No direct public substitute part numbers are documented in the provided source material. Designers should evaluate newer NXP audio codec families for modern replacements, ensuring compatibility with voltage levels, pin configurations, and digital interface requirements.