UDA1338H/N1,518

Overview

The UDA1338H is a single-chip multichannel audio coder-decoder featuring four plus one analog-to-digital converters and six digital-to-analog converters. It employs bitstream conversion techniques with a 24-bit data path. The device supports I2S, MSB-justified, LSB-justified, and multichannel formats with word lengths up to 24 bits. Audio ADC sampling ranges from 16 kHz to 100 kHz, voice ADC from 7 kHz to 50 kHz, and DAC from 16 kHz to 200 kHz. Power supplies for ADC and DAC operate between 2.7 V and 3.6 V. Digital inputs are 5 V tolerant. Control is managed via L3-bus or I2C-bus interfaces.

Feature Summary

• Multichannel configuration with four stereo audio inputs and one voice input supporting programmable gain amplifiers
• Six differential audio outputs with selectable sharp or soft roll-off digital filters
• Direct Stream Digital playback mode for stereo DSD signal processing
• Integrated digital sound processing including channel-independent volume control, de-emphasis, and mute functions

Applications

• Multichannel home audio-video applications
• Digital audio equipment incorporating surround features
• Voice communication systems requiring dedicated voice ADC channels

Procurement Notes

Verify the specific ordering suffix N1,518 against manufacturer documentation to confirm tape and reel packaging details. Confirm that the component meets RoHS compliance standards as indicated in the product data sheet. Ensure the QFP44 package variant matches the required board layout specifications before finalizing procurement orders.

Selection Notes

Select this component for designs requiring simultaneous high-fidelity audio recording and multi-channel playback. The device is suitable for systems needing separate power domains for analog sections to minimize noise. Consider the slave-only operation mode when designing the system clock architecture. Verify interface compatibility with the host microcontroller's L3-bus or I2C capabilities.

Part Context

The UDA1338H belongs to NXP's family of multichannel audio coder-decoders designed for consumer electronics. It integrates analog front-ends with digital signal processing capabilities on a single silicon die. The device utilizes bitstream conversion technology to achieve high dynamic range and low distortion performance across its audio channels.

Replacement Considerations

Consult official NXP documentation for qualified replacement part numbers. Verify pin compatibility and electrical parameter equivalence before substituting components in existing designs.