AD9561JR

Overview

The AD9561JR is a second-generation high-speed, digitally programmable pulse width modulator (PWM) manufactured by Analog Devices. The device generates output pulses where the width is directly proportional to an 8-bit data input value. It features two additional control inputs that determine the temporal positioning of the pulse within the clock cycle, allowing selection between the start, middle, or end of the period. This architecture supports precise digital control over PWM timing and duty cycle in high-speed applications.

Feature Summary

• Digitally programmable pulse width modulation with output width proportional to 8-bit data input
• Configurable pulse positioning relative to the clock cycle via dedicated control inputs
• High-speed operation suitable for demanding signal processing requirements

Applications

• High-speed communication systems requiring precise pulse generation
• Digital signal processing circuits utilizing programmable PWM techniques
• Clock and data recovery applications in SONET/SDH environments

Procurement Notes

Verify the manufacturer part number matches exactly. Confirm the package type and temperature range specifications against the official datasheet. Ensure the component source is authorized to avoid counterfeit risks. Check for any specific ordering suffixes that may alter electrical characteristics or packaging.

Selection Notes

Select this component when a high-speed, digitally controlled PWM solution is required. The 8-bit resolution offers a balance between precision and complexity. Consider the available control options for pulse placement if timing alignment with clock edges is critical for the system design.

Part Context

The AD9561JR belongs to Analog Devices' family of high-speed programmable pulse width modulators. As a second-generation device, it improves upon previous iterations by offering enhanced speed and flexible pulse positioning capabilities. It is designed for integration into complex electronic systems requiring accurate digital-to-pulse conversion.

Replacement Considerations

Consult the official Analog Devices documentation for verified substitute part numbers. Cross-reference pin compatibility and electrical specifications before substitution. Generic replacements may not support the same pulse positioning features or speed requirements.