AD1854JRSZRL

Overview

The AD1854JRSZRL is a stereo audio DAC from Analog Devices, housed in a 28-lead SSOP package. It supports 16-, 18-, 20-, and 24-bit data with sample rates up to 96 kHz. The device features a multibit sigma-delta modulator for reduced idle tones and noise floor. Key specifications include 113 dB dynamic range at 48 kHz (AD1854KRS variant) and 112 dB SNR. It operates on a single 5 V supply and includes an on-chip volume control with 1024 steps, hardware/software mute, and digital de-emphasis. The serial interface supports left-justified, right-justified, and I2S formats.

Feature Summary

• Multibit Sigma-Delta Modulator with Perfect Differential Linearity Restoration
• On-Chip Volume Control with 1024 Steps and Smooth Auto Ramp
• Flexible Serial Data Port: Left/Right Justified, I2S-Compatible
• Digital De-Emphasis Processing for Redbook CD Playback

Applications

• DVD Players
• CD Players
• Set-Top Boxes
• Home Theater Systems
• Automotive Audio Systems

Procurement Notes

Verify the obsolete status of the AD1854 family before procurement. Confirm that the JRS suffix corresponds to the commercial temperature range (0°C to 70°C) and the RL suffix indicates reel packaging. Check current distributor availability as end-of-life products may have limited stock or require alternative sourcing strategies.

Selection Notes

Select the AD1854JRSZRL for applications requiring high-performance stereo audio conversion with integrated volume control. Ensure the system clock supports 256x or 384x FS modes. Verify compatibility with the host processor's serial interface format (I2S, Left, or Right justified). Consider the KRS variant if higher dynamic range (113 dB) is required compared to the JRS variant (105 dB unweighted).

Part Context

The AD1854 is part of Analog Devices' legacy high-performance audio DAC portfolio. It was designed for consumer audio applications such as DVD and CD players. The JRSZRL designation specifically denotes the commercial temperature grade and tape-and-reel packaging format within the RS-28 SSOP package family.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-compatible replacements should be evaluated based on specific performance requirements and interface compatibility.