92HD99B1X5NDGXWCX

Overview

The Tempo Semiconductor 92HD99B1X5NDGXWCX 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 or 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 and is housed in a 40-pad QFN package.

Feature Summary

• Integrated Class-D stereo BTL speaker amplifier and capless headphone amplifier for reduced PCB footprint
• Full HD Audio 015-B low power support enabling rapid transitions between active and sleep states
• Hardware parametric equalizer and compressor limiter for optimized audio processing
• Combo jack support allowing dual-function detection for headphones and headsets

Applications

• Notebook computer audio systems
• Business desktop PC audio platforms
• VoIP communication devices requiring full-duplex stereo audio

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and feature set variations. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly planning. Check for any superseded part numbers within the 92HD99 series that may offer updated manufacturing availability or revised electrical characteristics.

Selection Notes

Select this component when a high-integration solution is required to minimize bill of materials count and board space. Ensure the design accommodates the 40-pad QFN package requirements and thermal dissipation needs for the integrated Class-D amplifier. Verify that the host system supports the necessary HDA signaling voltages and provides adequate power supply rails for the internal regulators.

Part Context

This component belongs to the 92HD99 series of single-chip audio systems designed by Tempo Semiconductor. The series focuses on providing high-fidelity audio capabilities with low power consumption for portable and desktop computing environments. The specific model variant includes standard commercial temperature ratings and packaging options consistent with the broader product line specifications.

Replacement Considerations

Consult the official datasheet for cross-reference information regarding compatible substitute models within the same family. Verify functional equivalence regarding amplifier output power and codec channel configurations before implementing any alternative components.