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AD9835BRU

AD9835BRU Description

The AD9835BRU from Analog Devices Inc. is a high-performance Direct Digital Synthesis (DDS) IC designed for precision frequency generation. Operating with a 50 MHz master clock (fclk), this device delivers 10-bit resolution and a 32-bit tuning word width, enabling fine frequency control with low phase noise. Housed in a 16-pin TSSOP package, it is optimized for surface-mount applications and operates within a 4.75V to 5.25V supply range. Although marked as obsolete, its robust architecture and reliability make it a viable choice for legacy systems. Compliant with ECCN EAR99 and HTSUS 8542.39.0001, it is suitable for export-controlled applications.

AD9835BRU Features

• 50 MHz Clock Rate: Supports high-speed frequency synthesis for demanding applications.
• 32-Bit Tuning Word: Ensures ultra-fine frequency resolution (0.012 Hz at 50 MHz fclk).
• 10-Bit DAC Resolution: Balances performance and cost for mid-range precision needs.
• Low Power Consumption: Ideal for power-sensitive designs.
• Surface-Mount TSSOP Package: Compact footprint for space-constrained PCBs.
• Moisture Sensitivity Level (MSL) 1: Suitable for extended storage and handling.

AD9835BRU Applications

The AD9835BRU excels in:

• Test & Measurement Equipment: Signal generators, frequency synthesizers.
• Communications Systems: Local oscillators, modulation/demodulation circuits.
• Industrial Automation: Precision timing, motor control.
• Medical Devices: Ultrasonic imaging, therapeutic equipment.
• Military/Aerospace: Radar, secure communications (where legacy support is critical).

Conclusion of AD9835BRU

The AD9835BRU remains a reliable DDS solution for applications requiring stable frequency generation with moderate resolution. Its 32-bit tuning capability and 50 MHz operation provide flexibility, while its obsolete status suggests evaluation of modern alternatives for new designs. For legacy systems or cost-sensitive projects, this IC offers a proven balance of performance and integration.