Overview
The AD9834BRUZ is a 75 MHz low-power Direct Digital Synthesis (DDS) device produced by Analog Devices Inc. This component is designed to generate high-performance sine and triangular outputs, making it suitable for a variety of applications requiring precise waveform generation. The AD9834BRUZ operates with a power supply ranging from 2.3 V to 5.5 V and consumes only 20 mW of power at 3 V, making it an ideal choice for power-sensitive applications. It features an on-board comparator for generating square waves and supports phase and frequency modulation through a 3-wire SPI interface.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD9834BRUZ |
| Package | 20-lead TSSOP |
| 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 |
| Temperature Range | -40°C to +105°C |
| Frequency Resolution | 0.28 Hz (with 75 MHz clock), 0.004 Hz (with 1 MHz clock) |
| Serial Interface | 3-wire SPI, up to 40 MHz clock rate |
| DAC Resolution | 10-bit |
| Frequency Registers | 28 bits |
Key Features
- Narrow-band SFDR >72 dB
- Sine and triangular output waveforms
- On-board comparator for square wave generation
- Phase and frequency modulation capabilities
- 3-wire SPI interface compatible with DSP and microcontroller standards
- Power-down option to minimize current consumption
- Independent analog and digital power supplies
- High impedance current source 10-bit DAC
- Single-ended or differential output operation
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 AD9834BRUZ?
The maximum clock frequency of the AD9834BRUZ is 75 MHz.
- What is the power consumption of the AD9834BRUZ at 3 V?
The power consumption of the AD9834BRUZ at 3 V is 20 mW.
- What types of output waveforms can the AD9834BRUZ generate?
The AD9834BRUZ can generate sine, triangular, and square wave outputs.
- What is the resolution of the frequency registers in the AD9834BRUZ?
The frequency registers in the AD9834BRUZ are 28 bits.
- What is the temperature range of the AD9834BRUZ?
The temperature range of the AD9834BRUZ is -40°C to +105°C.
- How does the AD9834BRUZ support phase and frequency modulation?
The AD9834BRUZ supports phase and frequency modulation through loading registers via the serial interface and toggling the registers using software or the FSELECT and PSELECT pins.
- What is the DAC resolution of the AD9834BRUZ?
The DAC resolution of the AD9834BRUZ is 10 bits.
- Can the analog and digital sections of the AD9834BRUZ be powered independently?
Yes, the analog and digital sections of the AD9834BRUZ can be powered independently from different power supplies.
- What is the purpose of the on-board comparator in the AD9834BRUZ?
The on-board comparator in the AD9834BRUZ allows for the generation of a square wave for clock generation.
- What is the maximum clock rate of the 3-wire SPI interface in the AD9834BRUZ?
The maximum clock rate of the 3-wire SPI interface in the AD9834BRUZ is 40 MHz.
