PCM1803DBR

ADCs/DACs - Special Purpose Overview

The PCM1803DBR is a stereo analog-to-digital converter (ADC) manufactured by Texas Instruments, utilizing Delta-Sigma architecture. It features a 24-bit resolution and supports sampling rates up to 96 kHz. The device accepts single-ended analog inputs and provides digital output via a serial interface. It operates on dual power supplies: an analog supply ranging from 4.5 V to 5.5 V and a digital supply from 2.7 V to 3.6 V. The component is housed in a 20-pin SSOP package with a wide operating temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 96 kHz maximum sampling rate
• Single-ended analog input configuration for stereo channels
• Dual power supply operation (Analog: 4.5V–5.5V; Digital: 2.7V–3.6V)
• Serial digital interface compatible with standard audio controllers

ADCs/DACs - Special Purpose Applications

• Portable audio recording devices
• Voice recognition systems
• Consumer audio equipment

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'DBR' corresponds to the tape-and-reel packaging format when sourcing components. Confirm that the design accommodates the distinct voltage requirements for analog and digital domains, as the PCM1803DBR requires separate power rails for optimal performance. Ensure the PCB layout supports the 20-SSOP footprint dimensions.

ADCs/DACs - Special Purpose Selection Notes

Select the PCM1803DBR when single-ended input compatibility is required rather than differential signaling. This model is suitable for designs needing a 96 kHz sampling ceiling. Engineers must account for the separate analog and digital power supply constraints during schematic design. The 20-SSOP package is appropriate for applications where moderate pin density and thermal performance are balanced.

ADCs/DACs - Special Purpose Part Context

The PCM1803DBR belongs to the PCM1803 family of audio ADCs from Texas Instruments. It serves as the reel-packaged variant of the PCM1803ADB, facilitating automated surface-mount assembly. This component is part of TI's broader portfolio of high-performance data converters designed for consumer and industrial audio applications.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1803ADBR is a direct functional equivalent within the same family, differing primarily in packaging or revision status. Designers should verify pinout compatibility before substituting other PCM18xx series models.