PCM1870RHFR

ADCs/DACs - Special Purpose Overview

The PCM1870RHFR is a low-power stereo audio analog-to-digital converter (ADC) from Texas Instruments, housed in a 24-pin VQFN package. It features a signal-to-noise ratio of 90 dB and supports sampling rates up to 50 ksps with 16-bit resolution. The device operates on a supply voltage range of 1.7 VDC to 3.6 VDC and functions within a temperature range of -40°C to +85°C. It integrates microphone bias, automatic level control, sound effects, and notch filters.

ADCs/DACs - Special Purpose Feature Summary

• Integrates microphone bias and automatic level control for simplified audio front-end design
• Includes built-in sound effect processing and notch filter capabilities
• Supports serial interface communication via 2-Wire, 3-Wire, I2C, or SPI protocols

ADCs/DACs - Special Purpose Applications

• Portable consumer audio devices
• Voice recognition systems
• Hands-free telephony modules

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix RHF corresponds to the tape and reel packaging configuration required for your assembly line. Confirm that the 24-VQFN exposed pad thermal requirements align with your PCB layout specifications. Ensure compatibility with the intended serial interface protocol before finalizing procurement.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a low-power stereo ADC with integrated signal processing is required. It is suitable for applications needing microphone bias and automatic level control without external discrete components. Consider the 16-bit resolution and 90 dB SNR for high-fidelity audio capture needs.

ADCs/DACs - Special Purpose Part Context

The PCM1870 belongs to Texas Instruments' family of specialized audio data acquisition converters. It is designed to replace discrete audio codec solutions by integrating multiple functions into a single chip. The RHFR suffix indicates the specific reel-based packaging variant available through authorized distributors.

ADCs/DACs - Special Purpose Replacement Considerations

Consult official Texas Instruments documentation for direct pin-compatible substitutes. Verify functional equivalence regarding SNR, sampling rate, and interface compatibility before replacing.