AD1895YRS

Overview

The AD1895YRS 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 upsampling ratios of 1:8 and downsampling ratios down to 7.75:1. The device features a dynamic range of 128 dB (A-weighted) and THD+N ranging from -115 dB to -122 dB. It operates on a 3.3 V core supply with input voltages between 3.3 V and 5.5 V. Key specifications include a 28-lead SSOP package, I2S interface support, and an operating temperature range of -40°C to +105°C.

Feature Summary

• Stereo asynchronous conversion with 192 kHz max sample rate
• 128 dB dynamic range and up to -122 dB THD+N
• Flexible serial interfaces including I2S, Left-Justified, and Right-Justified
• Hardware-controllable soft mute and bypass mode

Applications

• Digital audio interfacing
• Home theater systems
• Automotive audio systems
• DVD and CD-R players
• Set-top boxes

Procurement Notes

Verify the specific suffix YRS against the manufacturer datasheet to confirm pinout and electrical characteristics match the standard AD1895 specification. Ensure the 28-SSOP bulk packaging aligns with assembly requirements. Confirm that the 3.3V to 5.5V supply range meets system power constraints.

Selection Notes

Select this component for applications requiring high-fidelity stereo sample rate conversion up to 192 kHz. It is suitable for systems needing automatic sample frequency sensing without programming. Consider the 28-SSOP package size for space-constrained designs. Verify compatibility with digital signal processors using the supported serial port modes.

Part Context

The AD1895 is part of Analog Devices' second-generation asynchronous sample rate converter family, succeeding the AD1890. It offers improved jitter rejection and additional serial format support compared to its predecessor. The device is designed for seamless integration into digital audio chains requiring precise sample rate matching.

Replacement Considerations

The AD1896 is a related model offering similar functionality with potentially different performance metrics such as dynamic range. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.