PCM1801U/2K

ADCs/DACs - Special Purpose Overview

The PCM1801U/2K is a stereo audio analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a 16-bit resolution and supports sampling rates up to 48 kHz. The device utilizes a delta-sigma architecture with single-ended inputs, providing a signal-to-noise ratio of 93 dB. It operates on a single supply voltage ranging from 4.5 V to 5.5 V for both analog and digital sections. The component is housed in a 14-pin SOIC package with a width of 3.90 mm. It includes an integrated clock oscillator and supports serial data interfaces for system connectivity.

ADCs/DACs - Special Purpose Feature Summary

• 16-bit resolution with 48 kHz maximum sampling rate
• 93 dB signal-to-noise ratio (SNR)
• Integrated clock oscillator eliminates external crystal requirements
• Single-supply operation (4.5 V to 5.5 V)

ADCs/DACs - Special Purpose Applications

• Audio recording equipment
• Professional audio interfaces
• Digital audio workstations

ADCs/DACs - Special Purpose Procurement Notes

The PCM1801U/2KG4 variant is listed as discontinued by DigiKey. The PCM1801U/2K is identified as a manufacturer-recommended substitute. Verification of current availability and lead times is required before procurement planning. Ensure the specific suffix matches the required packaging configuration.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring low-power stereo ADC conversion with single-ended inputs. Verify that the 4.5 V to 5.5 V supply range aligns with the system design. The integrated oscillator simplifies board layout compared to devices requiring external clocks. Confirm compatibility with the host microcontroller's serial interface protocol.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM1801 family of audio ADCs. It is designed for high-fidelity audio applications where moderate resolution and low power consumption are prioritized. The device serves as a direct replacement for older Burr-Brown branded components in legacy designs.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1801U/2K is listed as a manufacturer-recommended alternative to the PCM1801U/2KG4. Verify pinout and electrical specifications match the original design requirements before substitution.