AD1987JCPZ

Overview

The AD1987JCPZ is an obsolete High Definition Audio codec designed for desktop PC applications. It features eight DACs and four ADCs, supporting up to 7.1 surround sound or 5.1 stereo plus independent headphone output. The device provides three stereo headphone ports with impedance detection and retaskable jacks. It supports sample rates from 8 kHz to 192 kHz with 16-, 20-, and 24-bit PCM resolution. Performance specifications include 95 dB dynamic range for outputs and 90 dB for inputs. Power supplies operate at 3.3 V ± 5% (Analog) and 3.3 V ± 10% (Digital). The component is housed in a 48-lead LFCSP_VQ package.

Feature Summary

• Supports Microsoft Vista Premium audio performance standards
• Includes internal 32-bit arithmetic for enhanced processing accuracy
• Features retaskable jacks and impedance/presence detection on all ports
• Provides dedicated S/PDIF output and digital/analog PCBeep capabilities

Applications

• Desktop PC audio subsystems requiring high-definition audio
• Systems utilizing 7.1 surround sound configurations on five discrete jacks
• Platforms implementing 5.1 stereo output with independent headphone capability
• Front panel jack retasking implementations

Procurement Notes

This component is officially classified as obsolete by the manufacturer. Verify current availability through authorized distributors or secondary markets. Confirm that the specific ordering suffix matches the required package option and RoHS compliance status before integration into new designs.

Selection Notes

Select this codec for legacy desktop platforms requiring high channel counts and advanced jack management. Ensure the design accommodates the 48-lead LFCSP_VQ package constraints. Verify compatibility with the HD Audio Link Specification and confirm support for the required sample rates and bit depths within the system architecture.

Part Context

The AD1987 belongs to Analog Devices' SoundMAX codec family, targeting high-performance desktop audio. It integrates multiple DAC and ADC pairs to handle complex multi-channel audio routing. The device includes specialized pins for microphone biasing and CD auxiliary input, distinguishing it from simpler single-channel codecs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the obsolete status of the component.