AD9832BRU-REEL

Overview

The AD9832BRU-REEL is a direct digital synthesizer (DDS) waveform generator featuring a 10-bit DAC and an on-chip sine lookup table. It supports master clock rates up to 25 MHz with frequency accuracy of one part in 4 billion. The device operates on a single 3 V to 5.5 V supply, consuming 200 mW typically, or reducing to 3–5 mW in power-down mode. It includes two 32-bit frequency registers and four 12-bit phase registers for modulation. The component is housed in a 16-lead TSSOP package and functions within an industrial temperature range of −40°C to +85°C.

Feature Summary

• Integrated numerically controlled oscillator with phase accumulator and sine look-up table
• Serial interface supporting direct and deferred data transfer modes
• Configurable power-down option for significant energy reduction
• On-board voltage reference with external reference input capability

Applications

• Frequency stimulus and waveform generation
• Frequency and phase tuning in communications systems
• Liquid and gas flow measurement instrumentation
• Proximity, motion, and defect detection sensory applications
• Test and medical equipment signal sources

Procurement Notes

Verify the specific ordering suffix RU-REEL indicates tape and reel packaging when sourcing. Confirm the B version designation corresponds to the industrial temperature range specifications. Ensure compatibility with the required serial interface timing parameters before integration. Cross-reference the datasheet revision E for any updates to electrical characteristics or pin definitions.

Selection Notes

Select this component for applications requiring precise frequency synthesis with low power consumption. The 10-bit resolution limits dynamic performance compared to higher bit-count DDS devices. Evaluate the need for internal versus external voltage references based on noise requirements. Consider the 25 MHz maximum clock speed when determining achievable output frequency ranges and spectral purity needs.

Part Context

This part belongs to Analog Devices' AD9832 family of direct digital synthesizers. The BRU variant specifically denotes the industrial temperature grade and TSSOP package style. The REEL suffix indicates bulk tape packaging for automated assembly. Similar products in the portfolio include variants with different package options or extended temperature ranges.

Replacement Considerations

The AD9835 is a compatible alternative offering higher resolution and additional features. Verify pin compatibility and register mapping differences when substituting. Check if the increased performance metrics align with system requirements. Ensure that power supply and clock interface constraints remain satisfied by the replacement part.