PCM1804DBRG4

ADCs/DACs - Special Purpose Overview

The PCM1804DBRG4 is a stereo analog-to-digital converter manufactured by Texas Instruments. It features two 24-bit delta-sigma modulators with full differential analog voltage inputs. The device supports sampling rates up to 192 kHz and utilizes a serial interface for digital data output. It operates on a 5V analog supply and a 3.3V digital supply, with an operating temperature range of -40°C to +85°C. The component is housed in a 28-pin SSOP package and is designed for high-performance audio applications requiring low power consumption and high signal integrity.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with dual delta-sigma modulators
• Supports sampling frequencies up to 192 kHz
• Full differential analog voltage inputs
• Integrated linear phase anti-aliasing digital filter

ADCs/DACs - Special Purpose Applications

• High-end consumer audio equipment
• Professional audio recording interfaces
• Digital audio workstations

ADCs/DACs - Special Purpose Procurement Notes

Verify the AEC-Q100 qualification status for automotive-grade requirements when sourcing the PCM1804DBRG4 variant. Confirm that the specific ordering suffix corresponds to the desired tape-and-reel packaging configuration. Ensure compatibility with the required 5V analog and 3.3V digital power domains during the procurement specification phase.

ADCs/DACs - Special Purpose Selection Notes

Select the PCM1804DBRG4 for designs requiring differential input stages to maximize noise rejection. This component is suitable for systems needing 24-bit precision at sample rates up to 192 kHz. Designers must account for the separate 5V and 3.3V power supplies and ensure the PCB layout accommodates the 28-pin SSOP footprint.

ADCs/DACs - Special Purpose Part Context

The PCM1804 belongs to the PCM18xx series of audio ADCs from Texas Instruments. The DBRG4 suffix indicates a specific manufacturing revision and packaging type within this family. This part shares architectural similarities with other PCM18xx devices but is distinct in its pinout and specific electrical characteristics tailored for stereo audio conversion.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements within the same family include the PCM1804S1IDBRQ1 for automotive applications or the standard PCM1804DB. Verify pin compatibility and electrical specifications before substituting.