PCM69APJ

ADCs/DACs - Special Purpose Overview

The PCM69APJ is a dual-channel, 18-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It utilizes Pulse Code Modulation (PCM) serial data interfaces for input and operates on a single 5V supply. The device is housed in a 16-pin Plastic Dual In-line Package (PDIP). Designed for high-fidelity applications, it supports sampling rates up to 48 kHz with a dynamic range of 93 dB. The component integrates an internal reference voltage source and features a power-down mode to minimize energy consumption during idle periods.

ADCs/DACs - Special Purpose Feature Summary

• Dual-channel architecture providing independent left and right audio outputs
• 18-bit resolution supporting 48 kHz sampling frequency
• Single 5V analog and digital power supply operation
• Integrated internal reference voltage eliminating external components
• Power-down capability for reduced standby current consumption

ADCs/DACs - Special Purpose Applications

• High-end home audio systems requiring low distortion
• Professional audio equipment such as mixing consoles
• Compact disc players and digital audio workstations
• Audio interface cards for personal computers

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix designation against manufacturer documentation, as variations may exist between standard production and obsolete stock. Confirm RoHS compliance status through official datasheets or authorized distributors. Check for availability from secondary market suppliers if the component is discontinued. Ensure the package type matches the target PCB footprint requirements before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select this component for designs requiring high-resolution audio conversion with minimal external circuitry due to the integrated reference. Verify that the system clock frequency aligns with the DAC's operational limits. Consider the PDIP package constraints for automated assembly processes. Evaluate thermal performance within the specified operating temperature range of -25°C to 85°C.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM69 family of audio DACs, which includes variants like the PCM69AU. The PCM69 series was designed to replace older multi-chip audio solutions by integrating multiple functions into a single IC. It represents a transition period in audio electronics where high-performance DACs became available in cost-effective packages for consumer and professional markets.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1793DB is listed as a similar replacement option by distributors. Verify pin compatibility and electrical specifications before substitution. Other modern alternatives may require level shifting or interface modifications.