92HD66B2X5NDGXZBX

Overview

The Tempo Semiconductor 92HD66B2X5NDGXZBX is a four-channel High Definition Audio codec featuring two stereo analog-to-digital converters and two digital-to-analog converters. It supports 24-bit resolution with sample rates up to 192 kHz for both ADC and DAC operations. The device includes dual capless headphone amplifiers, an integrated AVDD low-dropout regulator, and two independent SPDIF outputs. It operates on a 3.3V digital supply and a 5V analog supply, utilizing a 40-pin QFN package.

Feature Summary

• Dual capless headphone amplifier architecture
• Full Intel HD Audio interface compatibility
• Integrated AVDD LDO for improved power supply rejection ratio
• Support for simultaneous HDMI and SPDIF output

Applications

• Notebook PC audio systems
• Desktop PC audio systems
• Home entertainment system integration

Procurement Notes

Verify the specific silicon stepping revision by contacting the manufacturer, as indicated by the 'yy' suffix in the ordering nomenclature. Confirm that the design utilizes a 5V analog supply and 3.3V HDA signaling level, which are required specifications for this particular part variant.

Selection Notes

Select this component when a 40-pin QFN form factor is required alongside 3.3V HDA signaling. Ensure the application requires a 5V analog power supply rather than a 3.3V option. Verify that the specific port count and GPIO availability align with the 40-pin package limitations compared to the 48-pin alternative.

Part Context

This model belongs to the 92HD66B series of four-channel HD audio codecs. It shares core functionality with other variants in the family but is distinguished by its 40-pin QFN package and fixed 3.3V HDA signaling configuration. It serves as a specialized solution for compact desktop and notebook designs requiring specific voltage levels.

Replacement Considerations

The 92HD66B1X5NDGXZBX is a confirmed substitute offering identical features but configured for 1.5V HDA signaling instead of 3.3V.