UDA1351TS/N1,518

Overview

The UDA1351TS is a single-chip IEC 958 audio decoder with an integrated stereo DAC, manufactured by NXP USA Inc. It employs bitstream conversion techniques and supports sampling frequencies from 28 kHz up to 100 kHz. The device features a 20-bit data path in the interpolator and operates on a 2.7 V to 3.6 V power supply. Key electrical parameters include a typical signal-to-noise ratio of 100 dB at both 48 kHz and 96 kHz sampling rates. Total harmonic distortion plus noise is specified at -85 dB (at 0 dB, 48 kHz) and -80 dB (at 0 dB, 96 kHz). The unit is housed in a 28-lead SSOP package.

Feature Summary

• Integrated IEC 958 decoder with on-chip amplifier for CMOS level conversion
• Filter Stream DAC (FSDAC) requiring no analog post-filtering
• L3 microcontroller interface for volume, bass boost, treble, and mute control
• Automatic de-emphasis for 32.0, 44.1, and 48.0 kHz sample frequencies

Applications

• Digital audio systems
• IEC 958 compliant audio playback devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as per current regulatory requirements. Check for obsolescence notices or lifecycle changes prior to procurement. Ensure storage conditions adhere to moisture sensitivity level specifications to prevent package damage during soldering.

Selection Notes

Select this component for designs requiring direct IEC 958 input processing without external decoders. The L3 interface allows flexible configuration of digital filters and volume levels. Ensure the system clock output (256fs) aligns with downstream processor requirements. Verify that the 2.7 V to 3.6 V supply range matches the target application's power architecture.

Part Context

The UDA1351TS is part of the Philips/NXP UDA13xx series of audio codecs. It is fully pin and function compatible with the UDA1350ATS. The TS suffix denotes the SSOP28 package variant, while the H suffix indicates a QFP44 full-featured version. This specific model focuses on cost-effective IEC 958 decoding with integrated DAC capabilities.

Replacement Considerations

The UDA1350ATS is confirmed as a pin and function compatible substitute. No other public substitutes are documented.