92HD66B3X5NLGXZBX

Overview

The Tempo Semiconductor 92HD66B3X5NLGXZBX is a four-channel High Definition Audio codec featuring dual capless headphone amplifiers. It provides stereo 24-bit full duplex resolution with sample rates up to 192 kHz for both DAC and ADC operations. The device supports switchable 1.5V or 3.3V HDA signaling levels and operates with a 5V analog supply (AVDD). It includes two independent SPDIF output interfaces, one SPDIF input, and two digital microphone inputs. The component is housed in a 48-pin QFN package.

Feature Summary

• Dual capless headphone amplifier integration eliminates external coupling capacitors
• Supports simultaneous HDMI and SPDIF output via dual independent SPDIF interfaces
• Includes fully parametric equalizer and dynamics processing for voice articulation
• Features port presence detection capabilities in low power states

Applications

• Notebook PC audio systems
• Desktop PC audio platforms
• Home entertainment system connectivity

Procurement Notes

Verify the specific silicon stepping revision corresponding to the 'yy' suffix in the ordering code before finalizing procurement. Confirm that the design utilizes a 5V analog supply voltage, as this variant requires AVDD at 5V rather than 3.3V. Ensure the target application accommodates the 48-pin QFN physical footprint and thermal requirements associated with this package type.

Selection Notes

Select this model when switchable HDA signaling voltage between 1.5V and 3.3V is required, unlike fixed-voltage variants. Choose this part over the 40-pin version if additional analog ports such as Port E and Mono Out are necessary for the system architecture. Verify compatibility with Intel HD Audio specifications and EuP low power requirements during the selection process.

Part Context

This component belongs to the 92HD66B series of four-channel HD audio codecs manufactured by Tempo Semiconductor. The series offers variations in package size (40-pin vs 48-pin) and HDA signaling voltage configurations. The 48-pin package provides expanded I/O capabilities compared to the compact 40-pin alternative within the same product family.

Replacement Considerations

Direct replacements include other 92HD66B series parts with matching 48-pin packages and 5V analog supply requirements. Verify pinout compatibility and software configuration settings when substituting with different silicon revisions or variants offering fixed versus switchable HDA signaling voltages.

FAQ

What is the maximum sample rate supported by the DAC and ADC?

The DAC and ADC support sample rates up to 192 kHz.

Does this codec support simultaneous HDMI and SPDIF output?

Yes, it features dual SPDIF outputs that allow for simultaneous HDMI and SPDIF output support.

What is the analog supply voltage requirement for this specific part number?

This variant requires a +5V analog power supply (AVDD).