92HD99B2X5NDGXWCX

Overview

The Tempo Semiconductor 92HD99B2X5NDGXWCX is a single-chip PC audio system codec featuring four channels with two stereo DACs and two stereo ADCs, all operating at 24-bit resolution. It supports full-duplex stereo audio and simultaneous VoIP applications. The device integrates a 2W Class-D stereo BTL speaker amplifier capable of driving 4-ohm loads at 5V, alongside a capless headphone amplifier utilizing a charge pump and LDO. It includes an internal digital core LDO voltage regulator and supports both 1.5V and 3.3V HDA signaling. The component operates within a commercial temperature range of 0°C to +70°C and is housed in a 40-pad QFN package.

Feature Summary

• Integrates a 2W Class-D stereo BTL speaker amplifier and a capless headphone amplifier with charge pump/LDO for reduced PCB footprint.
• Supports full-duplex stereo audio and simultaneous VoIP with 24-bit resolution across two stereo DACs and two stereo ADCs.
• Features hardware-based audio processing including a 10-band parametric equalizer and a hardware compressor limiter.
• Includes dedicated BTL high-pass filtering for speaker protection and combo jack support for dual-function detection.

Applications

• Notebook computer audio systems
• Business desktop PC audio platforms
• Full-duplex VoIP communication devices

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm temperature range and package variations. Confirm RoHS compliance status through the manufacturer's current datasheet or environmental declaration. Ensure compatibility with the target platform's power supply requirements, specifically the 3.3V and 5V rails necessary for the integrated amplifiers and digital core.

Selection Notes

Select this component when a low-power, high-fidelity solution is required for notebook or business desktop PCs. It is suitable for designs needing integrated Class-D speaker amplification and capless headphone drivers to minimize external components. Verify that the application requires 24-bit resolution and supports the Intel HD Audio interface specifications.

Part Context

This part belongs to the 92HD99 series of single-chip audio systems designed by Tempo Semiconductor. The series focuses on high integration to reduce system bill of materials (BOM) count and cost. Variants within the series may differ in temperature ratings, package options, or specific feature sets like microphone mute inputs, as indicated by their unique ordering suffixes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official documentation for recommended replacements or cross-reference with similar models in the 92HD99 family if pin-to-pin compatibility is required.