AD9833BRUZ-REEL7 - 25MHz DDS Waveform Generator | Analog Devices
料号： AD9833BRUZ-REEL7 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.5 | $65.00 |
| 100 | $5.8 | $580.00 |
| 500 | $5.2 | $2,600.00 |
| 1,000 | $4.8 | $4,800.00 |
AD9833BRUZ-REEL7 概述
A Direct Digital Synthesis (DDS) IC is a type of waveform generator that uses digital signal processing to synthesize analog waveforms from a fixed-frequency reference clock. It is a key component in frequency synthesis, modulation, and signal generation systems. DDS devices are part of the broader category of data converters and signal generation ICs, which are essential in test equipment, communication systems, and medical devices.
Key features include a 25 MHz maximum clock frequency, 28-bit frequency resolution, and a 10-bit DAC. The AD9833 supports multiple output waveforms, including sine, triangular, and square waves, and can be programmed to output a constant level or a modulated signal. The device also includes a power-down mode that reduces current consumption to 0.5 µA, extending battery life in portable applications.
The AD9833 uses a phase accumulator architecture to generate waveforms with high accuracy and stability. The phase accumulator increments by a frequency tuning word (FTW) each clock cycle, and the output is read from a lookup table. This architecture allows for fast frequency hopping and precise phase control, making it suitable for applications such as frequency-shift keying (FSK) and phase-shift keying (PSK) modulation.
Typical applications include function generators, frequency synthesizers, impedance spectroscopy, and time domain reflectometry (TDR). The device is also used in audio and vibration testing, where precise frequency control is required. Its low power consumption and small package make it suitable for portable and handheld instruments.
When designing with the AD9833, ensure that the SPI interface is properly configured and that the reference clock is stable and accurate. The output amplitude is set by the full-scale current of the DAC, which can be adjusted with an external resistor. Proper decoupling of the power supply and careful PCB layout are essential to minimize noise and jitter.
直接替换替代料： AD9833BRUZ-REEL7 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： AD9833BRUZ-REEL7 （相同外形与封装尺寸） ——差异在于 DAC Resolution, Frequency Resolution, Operating Temperature Range, Package, Power Consumption.
快速对比工具——选择替代料号进行并排对比：
AD9833BRMZ-REEL7
✅ 直接替换📋 参考替代料（不在目录中）
AD9833BRMZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD9833BRUZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.9 / 个
查看数据手册 →AD9834BRUZ
⚡ 相同封装 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD9838BRUZ
⚡ 相同封装 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD9833BRUZ-REEL7 最大额定值与电气特性
| 电源电压 | 2.3 V to 5.5 V |
| Power Consumption | 12.65 mW at 3 V |
| 最大时钟频率 | 25 MHz |
| Frequency Resolution | 28-bit |
| DAC Resolution | 10-bit |
| Output Waveforms | Sine, Triangular, Square |
| 接口 | 3-wire SPI |
| 封装 | 10-MSOP |
| 工作温度范围 | -40°C to +105°C |
| Power-Down Current | 0.5 µA |
| Output Compliance | 0.2 V to 0.8 V |
| THD | 0.5% at 1 kHz |
| SFDR | 72 dB at 1 kHz |
| RoHS | Compliant |
| 安装类型 | Surface Mount |
AD9833BRUZ-REEL7 引脚配置
| 引脚 1 | VCC — Power supply (2.3 V to 5.5 V) |
| 引脚 2 | GND — Ground |
| 引脚 3 | SCLK — Serial clock input |
| 引脚 4 | SDATA — Serial data input |
| 引脚 5 | FSYNC — Active low frame synchronization input |
| 引脚 6 | AGND — Analog ground |
| 引脚 7 | VOUT — Analog output |
| 引脚 8 | COMP — DAC compensation pin |
| 引脚 9 | CAP — Digital supply decoupling |
| 引脚 10 | DGND — Digital ground |
典型应用
AD9833BRUZ-REEL7 适用于 6 应用s: Function Generators, Frequency Synthesizers, Impedance Spectroscopy, Time Domain Reflectometry (TDR), Audio Tone Generation, Vibration Testing.
Function Generators
The AD9833BRUZ-REEL7 is ideal for portable and bench function generators due to its low power consumption (12.65 mW at 3 V) and ability to generate sine, triangular, and square waves. Its 28-bit frequency resolution allows precise frequency setting from 0.1 Hz to 12.5 MHz. The 3-wire SPI interface simplifies control from a microcontroller, enabling frequency sweeps and modulation. The small 10-MSOP package saves board space, making it suitable for handheld instruments.
推荐
Frequency Synthesizers
In frequency synthesis, the AD9833BRUZ-REEL7 provides a stable, programmable frequency source with fast hopping capability. Its phase accumulator architecture allows frequency changes in microseconds, making it suitable for FSK and PSK modulation. The 28-bit tuning word provides fine frequency steps, essential for precise carrier frequencies in communication systems. The device operates from a single 3.3 V supply, simplifying power design. Its low power consumption is beneficial for battery-operated transceivers.
推荐
Impedance Spectroscopy
The AD9833BRUZ-REEL7 is used in impedance spectroscopy to generate a sinusoidal excitation signal with precise frequency control. Its 28-bit frequency resolution allows sweeping frequencies from millihertz to megahertz, enabling detailed impedance analysis. The low distortion output (THD 0.5%) ensures accurate measurements. The device's low power consumption is advantageous for portable impedance analyzers. The SPI interface allows easy integration with a microcontroller for data acquisition and control.
推荐
Time Domain Reflectometry (TDR)
In TDR systems, the AD9833BRUZ-REEL7 generates a step or pulse signal to probe transmission lines. Its fast frequency hopping and precise phase control enable accurate time-domain measurements. The device can generate square waves with sharp edges, essential for TDR. The low power consumption allows battery-powered operation in field instruments. The SPI interface simplifies control, and the small package is ideal for portable TDR meters.
推荐
Audio Tone Generation
The AD9833BRUZ-REEL7 can generate audio tones for testing and alert systems. Its 28-bit frequency resolution allows precise tone frequencies from 20 Hz to 20 kHz. The low THD (0.5%) ensures clean tones. The device operates from a 3.3 V supply and consumes minimal power, making it suitable for battery-powered devices. The SPI interface allows easy control of frequency and amplitude, enabling multi-tone generation for DTMF or alarm signals.
推荐
Vibration Testing
The AD9833BRUZ-REEL7 is used in vibration testing to generate sinusoidal excitation signals with precise frequency and amplitude control. Its 28-bit frequency resolution allows fine frequency sweeps for resonance detection. The device's low power consumption is beneficial for portable vibration analyzers. The SPI interface enables easy integration with a microcontroller for automated testing. The small package is ideal for compact test equipment.
推荐
推荐产品汇总
工程参考数据： AD9833BRUZ-REEL7 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | AD9833BRMZ-REEL7 | AD9833BRMZ | AD9833BRUZ | AD9834BRUZ | AD9838BRUZ |
|---|---|---|---|---|---|---|
| Package | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 50 MHz | 16 MHz |
| DAC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Frequency Resolution | 28-bit | 28-bit | 28-bit | 28-bit | 28-bit | 28-bit |
| Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Power Consumption | 12.65 mW at 3 V | 12.65 mW at 3 V | 12.65 mW at 3 V | 12.65 mW at 3 V | 20 mW at 3 V | 8 mW at 3 V |
| Interface | 3-wire SPI | 3-wire SPI | 3-wire SPI | 3-wire SPI | 3-wire SPI | 3-wire SPI |
关键差异点
- Low power consumption （对比 AD9834BRUZ)
- Pin-compatible with AD9833BRMZ-REEL7 （对比 AD9833BRMZ-REEL7)
- Higher clock frequency than AD9838 （对比 AD9838BRUZ)
设计说明
The AD9833BRUZ-REEL7 operates from 2.3 V to 5.5 V. Use a clean, low-noise supply and decouple with a 0.1 µF capacitor close to the VCC pin. For best performance, use a separate analog and digital ground plane and connect them at a single point. The power-down mode reduces current to 0.5 µA, which is useful for battery-powered designs.
Place the AD9833BRUZ-REEL7 close to the microcontroller to minimize SPI trace lengths. Keep the SPI lines short and avoid routing them near high-speed digital signals. Use a ground plane under the device to reduce noise. The COMP pin should be bypassed with a 10 nF capacitor to ground as recommended in the datasheet.
Ensure the SPI interface is correctly configured with the proper clock polarity and phase. The FSYNC pin must be held low during data transmission. The output amplitude is set by the full-scale current of the DAC, which can be adjusted with an external resistor. Do not exceed the output compliance range of 0.2 V to 0.8 V to avoid distortion.
合规信息
RoHS compliant per part number suffix 'U'. Other compliance data not specified in provided sources.
