Overview
The AD9834BRU-REEL is a low-power Direct Digital Synthesis (DDS) device manufactured by Analog Devices Inc. This component is designed to produce high-performance sine and triangular waveforms, making it an ideal choice for various applications requiring precise frequency generation. The AD9834 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 suitable for power-sensitive applications. It is available in a 20-lead TSSOP package and features an extended temperature range of −40°C to +105°C.
Key Specifications
| Specification | Value | Comments |
|---|---|---|
| Package | 20-TSSOP (0.173", 4.40mm Width) | |
| Maximum MCLK | 75 MHz | |
| Power Supply | 2.3 V to 5.5 V | Analog and digital sections can be run from different power supplies |
| Power Consumption | 20 mW at 3 V | |
| Output Frequency | Up to 37.5 MHz | |
| Frequency Resolution | 0.28 Hz with 75 MHz clock rate, 0.004 Hz with 1 MHz clock rate | |
| Serial Interface | 3-wire SPI, up to 40 MHz clock rate | Compatible with DSP and microcontroller standards |
| Temperature Range | −40°C to +105°C | |
| Output Waveforms | Sine, Triangular, Square (via on-board comparator) | |
| Power-Down Option | Yes, via SLEEP pin | Allows external control of power-down mode |
Key Features
- Narrow-band SFDR >72 dB
- On-board comparator for square wave generation
- Capability for phase modulation and frequency modulation
- 28-bit frequency registers and 12-bit phase registers
- Independent analog and digital power supplies
- Low power consumption and power-down option
- Extended temperature range: −40°C to +105°C
Applications
- Frequency stimulus/waveform generation
- Frequency phase tuning and modulation
- Low power RF/communications systems
- Liquid and gas flow measurement
- Sensory applications: proximity, motion, and defect detection
- Test and medical equipment
Q & A
- What is the AD9834BRU-REEL used for? The AD9834BRU-REEL is used for generating high-performance sine and triangular waveforms in various applications, including frequency stimulus, phase modulation, and low power RF/communications systems.
- What is the maximum clock rate of the AD9834BRU-REEL? The maximum clock rate of the AD9834BRU-REEL is 75 MHz.
- What is the power consumption of the AD9834BRU-REEL at 3 V? The power consumption of the AD9834BRU-REEL at 3 V is 20 mW.
- What types of output waveforms can the AD9834BRU-REEL generate? The AD9834BRU-REEL can generate sine, triangular, and square waveforms.
- Does the AD9834BRU-REEL have a power-down option? Yes, the AD9834BRU-REEL has a power-down option via the SLEEP pin.
- What is the temperature range of the AD9834BRU-REEL? The temperature range of the AD9834BRU-REEL is −40°C to +105°C.
- How does the AD9834BRU-REEL interface with other devices? The AD9834BRU-REEL uses a 3-wire SPI interface that operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards.
- Can the analog and digital sections of the AD9834BRU-REEL be powered separately? Yes, the analog and digital sections of the AD9834BRU-REEL can be powered separately.
- What is the resolution of the frequency registers in the AD9834BRU-REEL? The frequency registers in the AD9834BRU-REEL are 28 bits.
- What are some common applications of the AD9834BRU-REEL? Common applications include frequency stimulus/waveform generation, low power RF/communications systems, sensory applications, and test and medical equipment.
