Overview
The AD9834CRUZ, produced by Analog Devices Inc., is a 75 MHz low power Direct Digital Synthesis (DDS) device. It is designed to generate high-performance sine and triangular wave outputs, making it suitable for a variety of applications requiring precise frequency generation. The device also features an on-board comparator, enabling the production of square wave outputs for clock generation. With a power consumption of only 20 mW at 3 V, the AD9834CRUZ is ideal for power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Output Frequency | 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 (with 75 MHz clock), 0.004 Hz (with 1 MHz clock) |
| Phase Accumulator Bits | 28 bits |
| Temperature Range | −40°C to +105°C |
| Package Type | 20-lead TSSOP |
| Serial Interface | 3-wire SPI, up to 40 MHz clock rate |
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 with SLEEP pin
- Extended temperature range: −40°C to +105°C
- High-resolution frequency generation with 28-bit phase accumulator
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 output frequency of the AD9834CRUZ?
The maximum output frequency of the AD9834CRUZ is up to 37.5 MHz. - What is the power consumption of the AD9834CRUZ at 3 V?
The power consumption of the AD9834CRUZ at 3 V is 20 mW. - What type of serial interface does the AD9834CRUZ use?
The AD9834CRUZ uses a 3-wire SPI interface with a clock rate up to 40 MHz. - Can the analog and digital sections of the AD9834CRUZ be powered independently?
Yes, the analog and digital sections of the AD9834CRUZ can be powered independently. - What is the temperature range of the AD9834CRUZ?
The temperature range of the AD9834CRUZ is −40°C to +105°C. - Does the AD9834CRUZ support phase and frequency modulation?
Yes, the AD9834CRUZ supports phase and frequency modulation. - What is the resolution of the frequency generation with a 75 MHz clock rate?
The resolution of the frequency generation with a 75 MHz clock rate is 0.28 Hz. - What type of package does the AD9834CRUZ come in?
The AD9834CRUZ comes in a 20-lead TSSOP package. - Can the AD9834CRUZ be powered down to minimize current consumption?
Yes, the AD9834CRUZ has a power-down option controlled by the SLEEP pin. - What are some common applications of the AD9834CRUZ?
Common applications include frequency stimulus and waveform generation, low power RF and communications systems, sensory applications, and test and medical equipment.
