92HD91B1X5NLGIWCX

Overview

The Tempo Semiconductor 92HD91B1X5NLGIWCX is a single-chip PC audio system codec featuring integrated Class-D speaker amplifiers, a capless headphone amplifier, and an internal LDO. It provides four channels of high-fidelity audio with two stereo DACs and two stereo ADCs operating at 24-bit resolution. The device supports full-duplex stereo audio, simultaneous VoIP, and dual SPDIF outputs for HDMI compliance. It operates within a supply voltage range of 3.135 V to 5.25 V and functions across temperatures from -40°C to +85°C in a 48-pad QFN package.

Feature Summary

• Integrates a 3W/channel Class-D stereo BTL speaker amplifier and a capless headphone amplifier with charge pump/LDO.
• Supports combo jack detection for dual-function headphone and headset input with port presence detect capabilities.
• Includes hardware parametric equalizer, compressor limiter, and dedicated high-pass filters for speaker protection.
• Provides dual digital microphone inputs and supports Microsoft WLP desktop premium logo compliance.

Applications

• Notebook computer audio systems
• Business desktop PC audio platforms
• High-definition audio applications requiring low power consumption

Procurement Notes

Verify the component status as discontinued before initiating any design-in process. Confirm that the specific ordering suffix matches the required temperature range and package variant. Ensure all regulatory compliance requirements are met for the target market. Review the official datasheet for absolute maximum ratings to prevent operational damage during integration.

Selection Notes

Select this component when a compact PCB footprint and reduced bill of materials are critical for the design. It is suitable for applications requiring integrated Class-D amplification without external output capacitors. Consider the internal LDO and digital core regulator benefits for simplified power management schemes in portable computing devices.

Part Context

This part belongs to the 92HD91 series of single-chip audio systems designed by Tempo Semiconductor. The series focuses on high integration for notebook and business desktop PCs. It combines codec functionality with power amplification and regulation to minimize external component count.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing driver software and hardware configurations if considering alternative codecs from other manufacturers.