AD1986JSTZ

Overview

The AD1986JSTZ is an AC '97 2.3 compliant SoundMAX CODEC in a 48-pin LQFP package. It features six DAC channels for 5.1 surround sound and stereo ADCs with 20-bit resolution. The device supports variable sample rates from 7 kHz to 96 kHz, double-rate audio at 96 kHz, and includes integrated headphone amplifiers. Key specifications include greater than 90 dB dynamic range, S/PDIF output, and an integrated PLL for system clocking.

Feature Summary

• Integrated parametric equalizer and software-controlled VREF_OUT signals
• Advanced jack presence detection supporting up to eight jacks
• Built-in microphone/center/LFE/line-in sharing capabilities
• Independent headphone and LINE_OUT operation

Applications

• AC '97 compliant desktop and laptop motherboard audio subsystems
• 5.1 channel surround sound systems requiring high-resolution audio processing
• Audio interfaces utilizing S/PDIF digital output integration

Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout compatibility and electrical characteristics. Ensure that the specific ordering suffix matches the required temperature range and packaging format for your design implementation.

Selection Notes

Select this component when designing systems requiring AC '97 2.3 compliance with integrated 5.1 channel DAC support. Consider its internal mixing capabilities and reduced external component requirements for applications needing flexible input routing and jack sensing.

Part Context

This part belongs to the AD198x series of audio CODECs designed for PC audio applications. It provides a comprehensive solution for analog-to-digital and digital-to-analog conversion within the AC '97 architecture, integrating multiple audio functions into a single chip.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify functional equivalence regarding AC '97 register compatibility and pin assignments before considering alternative components.

FAQ

What is the maximum sample rate supported by the AD1986?

The AD1986 supports variable sample rates ranging from 7 kHz to 48 kHz in 1 Hz increments, and up to 96 kHz for double-rate audio applications.

How many DAC channels does the AD1986 provide?

The device provides six DAC channels configured for 5.1 surround sound output.

Does the AD1986 support S/PDIF output?

Yes, the AD1986 includes an integrated S/PDIF output capability.