UDA1334TS/N1,112

Overview

The UDA1334TS is a low-power stereo digital-to-analog converter (DAC) manufactured by NXP USA Inc. It integrates a digital interpolation filter, noise shaper, and Filter Stream DAC (FSDAC), eliminating the need for external analog post-filtering. The device supports I2S-bus and LSB-justified serial data formats with word lengths up to 24 bits. Operating on a single 1.8 V to 3.6 V supply, it achieves high audio fidelity with typical signal-to-noise ratios of 97 dB at 2.0 V and 100 dB at 3.0 V. Key features include automatic system clock detection, digital de-emphasis, mute control, and low-power standby modes.

Feature Summary

• Integrated digital filter and FSDAC architecture requiring no external analog output filters
• Supports I2S-bus and LSB-justified formats with word lengths of 16, 20, or 24 bits
• Automatic detection of system clock to sample rate ratios from 128fs to 768fs
• Low power consumption: 7 mW at 2.0 V and 17 mW at 3.0 V in normal operation

Applications

• Portable MiniDisc (MD) players
• MP3 players
• DVD players

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as this component originates from Philips Semiconductors era documentation. Ensure supply voltage requirements match the target application design constraints.

Selection Notes

Select the UDA1334TS for applications requiring a compact, low-power DAC solution without external filtering components. Ensure the host processor can provide the necessary slave-mode clock signals (SYSCLK, BCK, WS). Verify that the input data format (I2S or LSB-justified) matches the configuration pins SFOR0 and SFOR1.

Part Context

The UDA1334TS belongs to the Philips/NXP family of low-power audio DACs designed for portable consumer electronics. It utilizes a semi-digital reconstruction filter technique to achieve high performance while minimizing board space and power usage. The device is housed in a 16-lead SSOP package suitable for surface-mount assembly.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult current NXP product portfolios for modern replacements compatible with similar pinouts and specifications.