Overview
The AD9834BRUZ-REEL, produced by Analog Devices Inc., is a 75 MHz low power Direct Digital Synthesizer (DDS) device. It is designed to generate high-performance sine and triangular wave outputs, making it an ideal component for various applications requiring precise waveform generation. The device also features an on-board comparator, enabling the production of a square wave for clock generation. With a power consumption of only 20 mW at 3 V, it is particularly suited for power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Clock Frequency | 75 MHz |
| Output Frequency Range | Up to 37.5 MHz |
| Power Supply Range | 2.3 V to 5.5 V |
| Power Consumption at 3 V | 20 mW |
| Frequency Resolution | 0.28 Hz (at 75 MHz clock), 0.004 Hz (at 1 MHz clock) |
| Frequency Registers | 28 bits |
| Phase Registers | 12 bits |
| Serial Interface | 3-wire SPI, up to 40 MHz clock rate |
| Operating Temperature Range | −40°C to +105°C |
| Package Type | 20-lead TSSOP |
Key Features
- Narrow-band SFDR >72 dB
- On-board comparator for square wave generation
- Phase and frequency modulation capabilities
- Independent analog and digital power supplies
- Power-down option via SLEEP pin
- High impedance current source 10-bit DAC with adjustable full-scale output current
- Support for single-ended or differential output configurations
- 3-wire SPI interface compatible with DSP and microcontroller standards
Applications
- Frequency stimulus and waveform generation
- Frequency phase tuning and modulation
- Low power RF and communications systems
- Liquid and gas flow measurement
- Sensory applications: proximity, motion, and defect detection
- Test and medical equipment
Q & A
- What is the maximum clock frequency of the AD9834?
The maximum clock frequency of the AD9834 is 75 MHz. - What types of waveforms can the AD9834 generate?
The AD9834 can generate sine, triangular, and square wave outputs. - What is the power consumption of the AD9834 at 3 V?
The power consumption of the AD9834 at 3 V is 20 mW. - What is the frequency resolution of the AD9834?
The frequency resolution of the AD9834 can be as low as 0.28 Hz at a 75 MHz clock rate and 0.004 Hz at a 1 MHz clock rate. - Does the AD9834 support phase and frequency modulation?
Yes, the AD9834 supports both phase and frequency modulation. - What type of serial interface does the AD9834 use?
The AD9834 uses a 3-wire SPI interface. - What is the operating temperature range of the AD9834?
The operating temperature range of the AD9834 is −40°C to +105°C. - Can the analog and digital sections of the AD9834 be powered independently?
Yes, the analog and digital sections of the AD9834 can be powered independently. - Does the AD9834 have a power-down option?
Yes, the AD9834 has a power-down option via the SLEEP pin. - What is the package type of the AD9834?
The AD9834 is available in a 20-lead TSSOP package.
