PCM1870RHFTG4

ADCs/DACs - Special Purpose Overview

The PCM1870RHFTG4 is a stereo audio analog-to-digital converter manufactured by Texas Instruments. It features a 16-bit resolution and supports sampling rates up to 96 kHz. The device integrates microphone bias generation and microphone amplifiers, eliminating the need for external preamplifiers in microphone applications. It utilizes a delta-sigma architecture with an oversampling decimation filter. The component operates within a supply voltage range of 2.7 V to 5.5 V and is housed in a 16-pin VQFN package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated microphone bias generator and low-noise microphone amplifiers
• 16-bit resolution with 96 kHz maximum sampling rate
• Oversampling decimation filter with high stop-band attenuation
• Flexible digital interface supporting I2S, DSP, and TDM modes

ADCs/DACs - Special Purpose Applications

• Portable audio recorders
• Digital voice recording systems
• Hands-free telephony modules
• Voice recognition front-ends

ADCs/DACs - Special Purpose Procurement Notes

Verify the G4 suffix indicates lead-free and RoHS compliance per Texas Instruments standards. Confirm the RHFT designation corresponds to the VQFN-16 package and tape-and-reel shipping method. Ensure the operating temperature range matches the industrial specification of -40°C to +85°C for the target environment.

ADCs/DACs - Special Purpose Selection Notes

Select this component when integrated microphone amplification is required to reduce bill-of-materials count. Compare performance against the PCM1807 series if higher 24-bit resolution is needed, noting that the PCM1870 prioritizes lower power consumption and built-in mic amps over ultra-high dynamic range specifications found in higher-end models.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM18xx family of audio ADCs from Texas Instruments. It serves as a specialized solution for voice-centric applications where microphone signal conditioning is integrated directly into the conversion stage. The RHFTG4 variant represents the lead-free, environmentally compliant version of the standard PCM1870RHFT.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1870A is a related variant within the same family. Verify pin compatibility and specific electrical parameter differences before substitution. No direct cross-manufacturer equivalents are documented in the provided source data.