AD1895AYRSRL

Overview

The AD1895AYRSRL is a 24-bit, high-performance stereo asynchronous sample rate converter from Analog Devices. It supports input and output sampling frequencies up to 192 kHz with sample ratios ranging from 7.75:1 downsampling to 1:8 upsampling. The device features a 128 dB dynamic range (A-Weighted) and total harmonic distortion plus noise of up to –122 dB. It operates on a 3.3 V core supply and accepts 3.3 V or 5 V I/O voltages. The component is housed in a 28-lead SSOP package and is supplied on a 13-inch reel.

Feature Summary

• Automatically senses input and output sample frequencies without programming requirements
• Attenuates sample clock jitter through digital servo loop tracking
• Supports multiple serial interface formats including Left-Justified, I2S, Right-Justified, and TDM modes
• Includes hardware-controllable soft mute and bypass mode capabilities

Applications

• Home Theater Systems
• Automotive Audio Systems
• DVD and CD-R Players
• Set-Top Boxes
• Digital Audio Effects Processors

Procurement Notes

Verify the specific ordering suffix RL indicates reel packaging when sourcing components. Confirm that the voltage specifications align with system requirements, specifically the 3.3 V core and 3.3 V/5 V I/O supplies. Ensure ESD precautions are observed during handling due to device sensitivity. Cross-reference the temperature range of -40°C to +105°C with environmental constraints.

Selection Notes

Select this component for applications requiring high-fidelity asynchronous sample rate conversion between different audio clocks. The device is suitable where jitter attenuation and low distortion are critical. Consider the 28-lead SSOP package size for board layout constraints. Verify compatibility with digital signal processors using the supported serial port modes.

Part Context

The AD1895AYRSRL belongs to the AD1895 family of second-generation asynchronous sample rate converters. It builds upon the AD1890 architecture with improved performance metrics. The AYRS variant denotes the industrial temperature range and SSOP package, while the RL suffix specifies reel packaging for automated assembly processes.

Replacement Considerations

The AD1890 is a predecessor model within the same product family. Designers migrating from older converters should verify pinout compatibility and software configuration differences.