AD9835BRU

Product Overview

Category

AD9835BRU belongs to the category of integrated circuits (ICs).

Use

The AD9835BRU is primarily used for waveform generation and frequency synthesis applications.

Characteristics

• The IC operates on a single power supply voltage ranging from 2.3V to 5.5V.
• It offers a frequency resolution of up to 0.1 Hz.
• The AD9835BRU provides a programmable output frequency range from 0 Hz to 12.5 MHz.
• It features a 10-bit phase modulation capability.
• This IC supports both sine and triangular wave outputs.

Package

AD9835BRU is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of AD9835BRU lies in its ability to generate precise and customizable waveforms with high accuracy and stability.

Packaging/Quantity

The AD9835BRU is typically sold in reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Supply Voltage: 2.3V to 5.5V
• Frequency Resolution: 0.1 Hz
• Output Frequency Range: 0 Hz to 12.5 MHz
• Phase Modulation: 10-bit
• Waveform Outputs: Sine and Triangular

Detailed Pin Configuration

The AD9835BRU has the following pin configuration:

1. FSYNC - Frequency control input
2. SDATA - Serial data input
3. SCLK - Serial clock input
4. RESET - Reset input
5. OUT - Analog output
6. VDD - Power supply
7. DGND - Digital ground
8. AGND - Analog ground

Functional Features

• Programmable frequency and phase control
• On-chip 10-bit DAC for amplitude control
• Serial interface for easy integration with microcontrollers
• Power-down mode for reduced power consumption
• Low harmonic distortion for accurate waveform generation

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for flexibility in various applications.
• High frequency resolution enables precise waveform generation.
• Small package size facilitates space-constrained designs.
• Low harmonic distortion ensures accurate and clean output signals.

Disadvantages

• Limited maximum output frequency compared to some other waveform generators.
• Lack of built-in modulation options may require additional circuitry for certain applications.

Working Principles

The AD9835BRU utilizes a direct digital synthesis (DDS) technique to generate waveforms. It consists of a phase accumulator, a sine lookup table, and a digital-to-analog converter (DAC). The phase accumulator generates a digital representation of the desired waveform's phase, which is then used to index the sine lookup table. The DAC converts the digital values from the lookup table into analog voltages, resulting in the desired waveform at the output.

Detailed Application Field Plans

The AD9835BRU finds applications in various fields, including:

1. Audio signal generation for musical instruments and sound systems.
2. Frequency modulation (FM) synthesis in communication systems.
3. Function generators for testing and measurement equipment.
4. Frequency sweep and chirp generation in radar and sonar systems.
5. Signal conditioning and calibration in industrial automation.

Detailed and Complete Alternative Models

Some alternative models to the AD9835BRU include:

1. AD9833: Similar functionality with a lower output frequency range.
2. AD9834: Offers additional square wave output in addition to sine and triangular waves.
3. AD9837: Provides higher frequency range and advanced modulation capabilities.
4. AD9838: Features a built-in comparator for frequency and phase detection.

These alternative models cater to specific requirements and offer different features for diverse applications.

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