AD1892JRRL

Overview

The AD1892JRRL is a digital audio receiver and asynchronous sample rate converter in a 28-lead SOIC package. It operates on a single +5 V supply within an industrial temperature range of –40 °C to +85 °C. The device supports EIAJ CP-340, IEC-958, AES/EBU, and S/PDIF standards with a 1:5 upsampling range and 1:0.85 downsampling range. Key electrical parameters include a 120 dB dynamic range, –113 dB THD+N at 1 kHz, and operational current of 60 mA.

Feature Summary

• Integrates a digital audio receiver with an asynchronous sample rate converter using 20-bit SamplePort architecture for superior jitter rejection.
• Supports multiple serial data formats including left-justified, right-justified, and I2S-compatible modes via a flexible three-wire interface.
• Includes hardware power-down/reset and mute control inputs alongside status pins for stand-alone or microcontroller-oriented operation.

Applications

• DVD, DAT, MD, DCC and CD-R Recorders and Players
• Computer Multimedia Products
• DAB Receivers and Automotive Digital Audio Networks

Procurement Notes

Verify the specific ordering suffix 'RR' indicates reel packaging when sourcing components. Confirm that the part number matches the exact 28-lead SOIC specification required for the target design. Ensure compatibility with the specified +5 V supply voltage and industrial temperature range during component selection.

Selection Notes

Select this component for applications requiring integrated digital reception and sample rate conversion without external converters. Verify that the system master clock frequency aligns with the required 512 times output sample rate constraint. Ensure the design accommodates the 28-lead SOIC footprint and provides adequate decoupling capacitors for the digital supply.

Part Context

This part belongs to the AD1892 family of integrated digital receivers and rate converters manufactured by Analog Devices Inc. It utilizes the company's SamplePort technology for high-performance asynchronous sample rate conversion. The device combines digital audio reception capabilities with robust jitter rejection features suitable for professional and consumer audio interfaces.

Replacement Considerations

The AD1892JR is a compatible alternative offering identical specifications in a standard tube package rather than reel packaging. Both parts share the same functional characteristics, pinout, and performance metrics within the industrial temperature range.

FAQ

What input standards does the AD1892 support?

The AD1892 supports EIAJ CP-340 (CP-1201), IEC-958, AES/EBU, and S/PDIF compatible digital audio streams.

How is the master clock frequency determined?

The master clock (MCLK) must be synchronous with the output sample rate at exactly 512 times the output sample frequency (512 · FSOUT).

What is the function of the SYNC input pin?

The SYNC input allows multiple AD1892 devices in a system to be phase and group delay synchronized to the same LEFT/RIGHT clock signal.