PCM1851APJTG4

ADCs/DACs - Special Purpose Overview

The PCM1851APJTG4 is a stereo audio analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a 24-bit resolution and supports sampling rates up to 96 kHz. The device integrates a 6x2 channel multiplexer and programmable gain amplifiers (PGAs). It utilizes an I2C serial interface for control and data output. The component operates within a supply voltage range of 2.7V to 3.6V for digital logic and 4.5V to 5.5V for analog circuits. It is housed in a 32-pin TQFP package measuring 7mm x 7mm, with an operating temperature range of -40°C to 85°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrates a 6x2 channel multiplexer and programmable gain amplifiers for flexible input configuration
• Delivers high-fidelity audio conversion with 24-bit resolution and low noise performance
• Supports standard I2C serial communication interface for system integration

ADCs/DACs - Special Purpose Applications

• High-fidelity audio recording systems
• Professional audio mixing consoles
• Digital audio workstations

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current datasheet to confirm compliance with RoHS3 standards and exact pinout definitions. Ensure that the 32-TQFP (7x7) package dimensions match the target PCB footprint requirements. Confirm that the dual supply voltage specifications align with the system's power architecture before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a stereo ADC with integrated PGA and MUX functionality is required for professional audio applications. Consider the 24-bit resolution and 96 kHz sampling rate as sufficient for high-quality audio capture. Evaluate the I2C interface compatibility with the host microcontroller. The wide operating temperature range makes it suitable for industrial or automotive audio environments.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM185x family of audio ADCs from Texas Instruments. It shares architectural similarities with other members like the PCM1852, differing primarily in channel count and specific feature sets. The PCM1851 is designed specifically for stereo applications requiring integrated signal conditioning, distinguishing it from simpler ADCs lacking built-in PGAs or multiplexers.

ADCs/DACs - Special Purpose Replacement Considerations

Consult official substitution lists for direct equivalents. Generic replacements may lack the integrated 6x2 MUX or PGA features. Verify pin-to-pin compatibility and electrical parameter alignment with the original datasheet before considering alternative sources.