AD1852JRS

Overview

The AD1852JRS is a stereo, 24-bit, 192 kHz multibit sigma-delta digital-to-analog converter (DAC) from Analog Devices Inc. It operates on a single 5 V supply and accepts 16-, 18-, 20-, or 24-bit data in multiple serial formats including I²S, left-justified, right-justified, and DSP modes. Key performance metrics at 48 kHz include 117 dB A-weighted signal-to-noise ratio (mono), 114 dB (stereo), and –102 dB THD+N (stereo). The device features an on-chip interpolator, de-emphasis filter, clickless volume control, and mute function via an SPI-compatible serial port.

Feature Summary

• Multibit Sigma-Delta Modulator with data-directed scrambling for reduced idle tones and jitter sensitivity
• Supports sample rates of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz
• On-chip stereo attenuator and hardware/software controllable clickless mute
• Flexible serial interface supporting Right-Justified, I²S, Left-Justified, and DSP modes

Applications

• High-end DVD and CD players
• Home theater systems
• Automotive audio systems
• Digital mixing consoles
• Sampling musical keyboards

Procurement Notes

Verify the specific suffix 'JRS' corresponds to the 28-lead SSOP package and 0°C to 70°C operating temperature range as defined in the ordering guide. Confirm that the component is sourced from authorized distributors to ensure authenticity, as ESD-sensitive devices may be subject to handling restrictions. Check current availability status as older audio DAC models may have limited stock or end-of-life implications.

Selection Notes

Select the AD1852JRS when a high-performance stereo DAC with integrated interpolation and de-emphasis is required. Ensure the system design supports a single 5 V power supply and provides appropriate master clock frequencies (256x to 1024x FS). Verify that the host processor can drive the required serial data interfaces (I²S, DSP, etc.) and SPI control lines. Consider the 28-lead SSOP package dimensions for PCB layout constraints.

Part Context

The AD1852JRS is part of the AD1852 family of high-performance audio DACs. It is housed in a 28-lead Shrink Small Outline Package (SSOP) with option RS-28. The 'J' indicates the industrial temperature range (0°C to 70°C), and 'RS' denotes the SSOP package type. This component is designed for complete digital audio playback systems, integrating modulation, filtering, and output drive circuitry on a single monolithic IC.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices for current equivalent products or updated series replacements if the AD1852JRS is discontinued or unavailable.