UDA1361TS/N1,118

Overview

The UDA1361TS is a stereo Analog-to-Digital Converter (ADC) utilizing bitstream conversion techniques, designed for low-voltage portable digital audio equipment. It supports sampling frequencies from 5 to 110 kHz with up to 24 significant bits of serial output. The device operates on a single 2.4 to 3.6 V power supply and features integrated high-pass filtering to cancel DC offset. It accommodates I2S-bus and MSB-justified data formats in both master and slave modes. Key electrical parameters include a signal-to-noise ratio of 100 dB at 48 kHz and 96 kHz sampling rates, and total harmonic distortion-plus-noise ratios of -83 dB at -1 dBFS.

Feature Summary

• Stereo single-ended input configuration with integrated decimation and DC cancellation filters
• Supports system clocks of 256, 384, 512, and 768fs for sampling frequencies up to 110 kHz
• Compatible with I2S-bus and MSB-justified serial output formats with word lengths up to 24 bits
• Low power consumption with dedicated power-down mode control via the PWON pin

Applications

• Portable digital audio recording devices
• Low-voltage consumer audio equipment
• Digital audio interfaces requiring stereo ADC functionality

Procurement Notes

Verify the specific ordering suffix against current NXP Semiconductors availability lists, as product status may have changed since the 2002 specification date. Confirm package dimensions match the SSOP16 (SOT369-1) outline provided in the datasheet. Ensure design-in compliance with the stated absolute maximum ratings and thermal characteristics for the target ambient temperature range.

Selection Notes

Select this component when a stereo ADC with bitstream conversion is required for portable applications. Ensure the system clock source can provide the necessary multiples of fs (256x to 768x). Verify that the input signal level matches the supported 1 V or 2 V RMS ranges, utilizing the internal gain switch or external series resistors as specified in the application information.

Part Context

The UDA1361TS belongs to the UDA13xx series of audio ADCs from NXP Semiconductors. It is functionally similar to other members like the UDA1341 but offers higher resolution and sampling capabilities. The device is housed in a plastic shrink small outline package with 16 leads, suitable for surface-mount assembly using reflow soldering methods.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult NXP Semiconductors for current equivalent products or updated series replacements.