92HD91B2X5NLGXYAX

Overview

The 92HD91B2X5NLGXYAX is a single-chip PC audio system by Tempo Semiconductor, Inc., integrating a low-power 4-channel HD Audio CODEC with Class-D speaker amplifiers and a capless headphone amplifier. It features two stereo DACs and two stereo ADCs with 24-bit resolution and supports conversion rates up to 192 kHz. The device includes an internal digital core LDO voltage regulator and supports dual SPDIF outputs for simultaneous HDMI and SPDIF transmission. It operates within a commercial temperature range of 0°C to +70°C and utilizes a 48-pad QFN package.

Feature Summary

• Integrated 3W/channel Class-D stereo BTL speaker amplifier supporting 4-ohm loads at 5V
• Capless headphone amplifier utilizing charge pump and LDO technology
• Full HDA015-B low power support enabling rapid D3 to D0 transitions in under 10 milliseconds
• Combo jack support allowing for dual-function detection of headphones and headsets

Applications

• Notebook computer audio systems
• Business desktop PC audio platforms
• Microsoft WLP desktop premium logo compliant designs

Procurement Notes

Verify the specific ordering suffix against official Tempo Semiconductor documentation to confirm exact package type and temperature rating. Ensure compatibility with required HDA signaling voltages (1.5V or 3.3V) during component sourcing. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly.

Selection Notes

Select this component for applications requiring high integration to minimize PCB footprint and BOM count. Verify that the design accommodates the 48-pad QFN package constraints. Ensure the host platform supports the necessary digital interfaces and software drivers for full parametric equalizer and dynamic stream switching functionality.

Part Context

This part belongs to the 92HD91 series of single-chip audio systems designed for PC applications. It consolidates codec, amplifier, and regulator functions into one package. The series targets cost-sensitive yet high-fidelity audio environments where space optimization and low power consumption are critical design parameters.

Replacement Considerations

Consult official manufacturer substitution lists for verified equivalents. Generic cross-references may not match the integrated Class-D amplifier specifications or HDA015-B low power compliance requirements.