AD1853JRSZRL

Overview

The AD1853JRSZRL is a stereo, 24-bit, 192 kHz multibit sigma-delta digital-to-analog converter (DAC) from Analog Devices. It integrates a high-performance digital interpolation filter, a multibit sigma-delta modulator with perfect differential linearity restoration, and a continuous-time current-output analog section. The device supports sample rates of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz, accepting 16-, 18-, 20-, or 24-bit data. Key electrical specifications at 48 kHz include 117 dB A-weighted signal-to-noise ratio (stereo), 116 dB dynamic range (stereo), and –104 dB THD+N. It operates on a single +5 V supply within the 0°C to +70°C temperature range.

Feature Summary

• Multibit Sigma-Delta Modulator: Utilizes 'Perfect Differential Linearity Restoration' to reduce idle tones and noise floor.
• Flexible Serial Interface: Supports Right-Justified, Left-Justified, I2S-Compatible, and DSP serial port modes via IDPM pins or SPI control.
• On-Chip Control Features: Includes hardware/software controllable clickless mute and auto-ramp volume control accessible via an SPI-compatible serial port.
• Digital De-Emphasis: Provides built-in 50 µs/15 µs de-emphasis filters for 32 kHz, 44.1 kHz, and 48 kHz sample rates.

Applications

• DVD Audio Players
• High-End CD Players
• Home Theater Systems
• Automotive Audio Systems
• Digital Mixing Consoles

Procurement Notes

Verify component status as the AD1853 family is marked obsolete in official documentation. Confirm availability through authorized distributors or surplus channels. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS process. Check for RoHS compliance status relative to the specific manufacturing batch date code.

Selection Notes

Select the AD1853JRSZRL for applications requiring high-resolution audio playback up to 192 kHz. Choose this part over the AD1852 if 192 kHz support is required, as the AD1852 is limited to 96 kHz. Ensure the design accommodates the 28-lead SSOP package dimensions. Verify that the host processor can interface with the flexible serial data port formats (I2S, DSP, etc.) supported by the device.

Part Context

The AD1853JRSZRL is the reel-packaged version of the AD1853JRS. Both belong to the AD1853 family of stereo DACs designed for DVD audio and high-fidelity audio applications. The device serves as a complete playback system by integrating digital filtering and modulation with analog output stages, reducing the need for external components compared to earlier discrete solutions.

Replacement Considerations

The AD1853 family is listed as obsolete. Potential replacements include the AD1955 series for similar audio performance with updated packaging or interfaces, or the AD1953 for direct pin-compatible upgrades where available. Verify pinout compatibility and software register mapping before substitution.