AD9833BRUZ - 25MHz Low Power DDS | Analog Devices
部品番号: AD9833BRUZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8.8 | $8.80 |
| 10 | $8.1 | $81.00 |
| 100 | $7.2 | $720.00 |
| 500 | $6.5 | $3,250.00 |
| 1,000 | $5.9 | $5,900.00 |
AD9833BRUZ 概要
Direct Digital Synthesis (DDS) is a method of generating analog waveforms digitally by accumulating phase increments and mapping them through a lookup table to produce sine, triangular, or square wave outputs. DDS offers advantages over analog oscillators, including precise frequency tuning, fast frequency hopping, and excellent phase continuity. The AD9833 is a member of the DDS family, which falls under the broader category of signal generation ICs used in test equipment, communication systems, and sensor excitation.
Key features of the AD9833BRUZ include a 28-bit frequency register providing 0.1 Hz resolution at 25 MHz clock, a 10-bit DAC for amplitude control, and a power-down mode that reduces current consumption to 0.5 mA typical. The device supports both SPI and Microwire serial interfaces, making it easy to interface with microcontrollers. The narrowband SFDR is typically 72 dB, ensuring clean output spectra for frequency synthesis applications.
The AD9833 uses a CMOS process, which contributes to its low power consumption of 20 mW at 3V. The internal architecture includes a phase accumulator that can be programmed for frequency and phase modulation, enabling applications such as FSK and PSK. The device also features a reset pin for initialization and a control register for configuring output waveform and power-down modes.
Typical applications include frequency excitation for impedance measurements, signal generation for test equipment, and waveform generation for portable instrumentation. The low power and small package make it ideal for battery-powered devices. When designing with the AD9833, ensure proper decoupling on the power supply and use a clean clock source to achieve optimal SFDR performance.
ドロップイン代替品: AD9833BRUZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: AD9833BRUZ （同一形状・フットプリント） — 相違点: DAC Resolution, Frequency Resolution, Operating Temperature Range, Package, Power Consumption.
クイック比較ツール — 並列比較する代替部品を選択:
AD9833BRMZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD9832BRUZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD9834BRUZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MAX9833
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
AD9833BRU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD9833BRUZ 仕様
| 電源電圧 | 2.5 V to 5.5 V |
| 最大クロック周波数 | 25 MHz |
| Output Waveforms | Sine, Triangular, Square |
| DAC Resolution | 10 bit |
| Frequency Register Width | 28 bit |
| Frequency Resolution | 0.1 Hz at 25 MHz |
| Narrowband SFDR | 72 dB typical |
| Power Consumption | 20 mW at 3 V |
| Power-Down Current | 0.5 mA typical |
| Serial Interface | SPI / Microwire |
| パッケージ | 10-pin MSOP (RM-10) |
| 動作温度範囲 | -40C to +105C |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
AD9833BRUZ ピン構成
| ピン 1 | VCC — Power supply (2.5V to 5.5V) |
| ピン 2 | GND — Ground |
| ピン 3 | SCLK — Serial clock input |
| ピン 4 | SDATA — Serial data input |
| ピン 5 | FSYNC — Frame synchronization input |
| ピン 6 | AGND — Analog ground |
| ピン 7 | VOUT — Analog output |
| ピン 8 | CAP/2.5V — Internal reference decoupling |
| ピン 9 | RESET — Reset input |
| ピン 10 | PSEL — Phase select input |
主な用途
AD9833BRUZ の用途: 6 件s: Frequency Excitation for Impedance Measurement, Signal Generation for Test Equipment, Waveform Generation for Portable Instrumentation, Frequency Hopping for Communication Systems, Sensor Excitation for Time Domain Reflectometry, Audio Tone Generation.
Frequency Excitation for Impedance Measurement
The AD9833BRUZ generates precise sine waves for impedance spectroscopy and network analysis. Its 28-bit frequency resolution allows fine frequency steps, and the low power consumption suits portable instruments. The device's SPI interface simplifies integration with microcontrollers, enabling automated frequency sweeps. The 10-bit DAC provides adequate amplitude control for most measurement applications.
おすすめ
Signal Generation for Test Equipment
The AD9833BRUZ is ideal for bench-top and portable signal generators, providing sine, triangular, and square wave outputs up to 12.5 MHz (half the clock). Its low power consumption (20 mW at 3V) extends battery life in field instruments. The device's fast frequency hopping enables swept-frequency measurements. The small MSOP package saves board space in compact designs.
おすすめ
Waveform Generation for Portable Instrumentation
The AD9833BRUZ is well-suited for portable devices requiring programmable waveforms, such as handheld signal generators and sensor excitation. Its 2.5V to 5.5V supply range allows operation from a single lithium cell. The power-down mode reduces current to 0.5 mA, preserving battery life. The SPI interface is compatible with most microcontrollers, simplifying firmware development.
おすすめ
Frequency Hopping for Communication Systems
The AD9833BRUZ supports fast frequency hopping, making it suitable for FSK and PSK modulation in communication systems. Its 28-bit frequency register allows precise carrier frequencies, and the phase accumulator enables continuous phase modulation. The device's low power consumption is beneficial for battery-operated transceivers. The serial interface allows easy control from a baseband processor.
おすすめ
Sensor Excitation for Time Domain Reflectometry
The AD9833BRUZ can generate excitation signals for time domain reflectometry (TDR) applications, where precise frequency control is essential. Its low power consumption and small package make it suitable for embedded TDR systems. The device's ability to produce square waves enables pulse generation for TDR. The SPI interface allows integration with data acquisition systems.
おすすめ
Audio Tone Generation
The AD9833BRUZ can generate audio-frequency tones for alarms, notifications, or test signals. Its 28-bit frequency resolution allows precise tuning, and the sine output provides low-distortion tones. The device's low power consumption is ideal for battery-powered audio devices. The square wave output can be used for digital audio signals.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AD9833BRUZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | AD9833BRMZ | AD9832BRUZ | AD9834BRUZ |
|---|---|---|---|---|
| Package | 10-MSOP | 10-MSOP | 10-MSOP | 10-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 75 MHz |
| Interface | Serial (SPI) | Serial (SPI) | Parallel | Serial (SPI) |
| DAC Resolution | 10 bit | 10 bit | 10 bit | 10 bit |
| Frequency Resolution | 0.1 Hz | 0.1 Hz | 0.1 Hz | 0.1 Hz |
| Power Consumption | 20 mW at 3V | 20 mW at 3V | 20 mW at 3V | 25 mW at 3V |
| Supply Voltage | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V |
主な差別化要因
- Low power consumption of 20 mW at 3V （vs AD9834BRUZ)
- Serial interface simplifies wiring （vs AD9832BRUZ)
- Wide supply voltage range （vs MAX9833)
設計ノート
The AD9833BRUZ operates from 2.5V to 5.5V. Use a clean power supply and place a 0.1uF decoupling capacitor close to the VCC pin. For optimal performance, a 10uF capacitor may be added in parallel for low-frequency noise filtering. Ensure the supply voltage is within the specified range to avoid damage.
For best signal integrity, keep the serial interface lines (SCLK, SDATA, FSYNC) short and avoid routing them near high-speed digital signals. Use ground planes to minimize noise coupling. The analog output (VOUT) should be routed away from digital traces to reduce interference.
Ensure the FSYNC signal is properly synchronized with SCLK to avoid data corruption. The AD9833 requires a valid reset sequence after power-up. Also, the CAP/2.5V pin must be decoupled with a 10nF capacitor to ground for internal reference stability. Refer to the datasheet for detailed programming instructions.
コンプライアンス情報
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
