PCM69AU-J/2K

ADCs/DACs - Special Purpose Overview

The PCM69AU-J/2K is a dual-channel, 18-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It utilizes delta-sigma modulation architecture to achieve high-fidelity audio performance with an SNR of 105 dB and THD+N of -90 dB. The device operates on a single 5V supply and features a serial interface compatible with standard DSP protocols. Packaged in a 16-pin SSOP format within a tape-and-reel configuration for automated assembly, it supports sampling rates up to 48 kHz. This component is designed for professional audio applications requiring low distortion and precise channel separation.

ADCs/DACs - Special Purpose Feature Summary

• 18-bit resolution with 105 dB SNR and -90 dB THD+N
• Dual-channel output with integrated anti-imaging filters
• Serial interface supporting standard DSP protocols
• Single 5V power supply operation

ADCs/DACs - Special Purpose Applications

• Professional audio mixing consoles
• High-end home theater processors
• Digital audio workstations

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix /2K indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Ensure the supplier provides traceability for the Texas Instruments origin to avoid counterfeit components.

ADCs/DACs - Special Purpose Selection Notes

Select this component for designs requiring 18-bit resolution and single-supply operation. Compare pin compatibility with legacy DIP versions if replacing older designs. Verify that the serial interface timing matches the host processor's clock requirements for reliable data transfer.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM69 family of audio DACs from Texas Instruments, originally developed under Burr-Brown. The AU/J designation specifies the commercial temperature range and SSOP package variant. The /2K suffix denotes the reel quantity packaging format used for surface-mount production lines.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements may include other 18-bit stereo DACs from the same manufacturer series. Verify electrical parameters such as supply voltage and interface protocol before substituting with devices from different vendors.