92HD91B1X5NLGXWCX

Overview

The Tempo Semiconductor 92HD91B1X5NLGXWCX is a low-power, high-fidelity 4-channel audio codec designed for notebook and business desktop PC applications. It integrates a Class-D stereo BTL speaker amplifier (3W/channel @ 4 ohms), a capless headphone amplifier with charge pump/LDO, and an internal digital core LDO voltage regulator. The device supports full-duplex stereo audio, simultaneous VoIP, and 2.1 audio crossover. It features two ADCs and two DACs with 24-bit resolution and a conversion rate of 192 kHz. Operating conditions range from -40°C to +85°C, with a supply voltage between 3.135 V and 5.25 V.

Feature Summary

• Integrates a 3W/channel Class-D stereo BTL speaker amplifier and a capless headphone amplifier with charge pump/LDO.
• Supports dual SPDIF output for simultaneous HDMI and SPDIF playback in WLP compliant systems.
• Includes hardware parametric equalizer, compressor limiter, and combo jack support for headset detection.
• Features Full HDA015-B low power support with D3 to D0 transition in under 10 msec.

Applications

• Notebook computers
• Business desktop PCs
• Windows Low Power (WLP) compliant systems

Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm package type and temperature range. Confirm component authenticity through authorized distributors or direct manufacturer channels. Check for RoHS compliance documentation and ensure the part matches the required industrial or commercial specifications before procurement.

Selection Notes

Select this component for designs requiring high integration to minimize PCB footprint and BOM count. Ensure the system design accommodates the 48-pad QFN package and provides adequate thermal dissipation for the integrated Class-D amplifier. Verify that the host platform supports the necessary HD Audio signaling levels and software drivers for optimal performance.

Part Context

This component belongs to the 92HD91 series of single-chip PC audio systems. It is manufactured by Tempo Semiconductor, Inc., which specializes in audio interface solutions. The series is optimized for low power consumption while maintaining high fidelity audio capabilities suitable for modern computing platforms.

Replacement Considerations

Consult official substitution lists for compatible alternatives within the same product family. Verify pin compatibility and electrical characteristics before replacing components in existing designs.

FAQ

Does the 92HD91 support simultaneous HDMI and SPDIF output?

Yes, it supports dual SPDIF output for WLP compliant support of simultaneous HDMI and SPDIF output.

What is the maximum power output of the integrated speaker amplifier?

The integrated Class-D stereo BTL speaker amplifier delivers 3W per channel at 4 ohms.

Is combo jack support available on this device?

Yes, the device supports combo jacks allowing for dual-function headphone and headset detection.