AD9954: 400 MSPS、14位、1.8 V CMOS、直接数字频率合成器
AD9954是一款直接数字频率合成器(DDS),采用先进技术并内置一个高速、高性能DAC,构成完整的数字可编程、高频合成器,能够产生最高达160 MHz的频率捷变模拟输出正弦波。它能够实现快速跳频,同时还具有精密频率调谐(0.01 Hz或更高分辨率)和相位调谐(0.022°间隔)。通过一个高速串行I/O端口可以进行编程。该器件内置静态RAM,支持多种模式下的灵活扫频功能,并且支持用户定义的线性扫描工作模式。同时内置一个片内高速比较器,适合要求方波输出的应用。借助片内振荡器和PLL电路,用户可以用多种方法产生器件的系统时钟。AD9954的额定工作温度范围为扩展工业温度范围。
The AD9954 is a direct digital synthesizer (DDS) that uses advanced technology, coupled with an internal high speed, high performance DAC to form a complete, digitally programmable, high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 160 MHz. The AD9954 enables fast frequency hopping coupled with fine tuning of both frequency (0.01 Hz or better) and phase (0.022° granularity).The AD9954 is programmed via a high speed serial I/O port. The device includes static RAM to support flexible frequency sweep capability in several modes, plus a user-defined linear sweep mode of operation. Also included is an on-chip high speed comparator for applications requiring a square wave output. An on-chip oscillator and PLL circuitry provide users with multiple approaches to generate the device’s system clock.The AD9954 is specified to operate over the extended industrial temperature range.
特点
- 400 MSPS内部时钟速度
- 集成14位DAC
- 可编程相位/振幅抖动
- 32位频率调谐精度
- 14位相位调谐精度
- 出色的动态性能:窄带SFDR大于80 dB
- 相位噪声优于–120 dBc/Hz
- 串行I/O控制
- 超高速模拟比较器
- 自动线性和非线性扫频
- 4种频率/相位偏移方案
- 1.8 V电源
- 400 MSPS internal clock speed
- Integrated 14-bit DAC
- Programmable phase/amplitude dithering
- 32-bit frequency tuning accuracy
- 14-bit phase tuning accuracy
- Excellent dynamic performance >80 dB narrowband SFDR
- Phase noise better than –120 dBc/Hz
- Serial I/O control
- Ultrahigh speed analog comparator
- Automatic linear and nonlinear frequency sweeping
- 4 frequency/phase offset profiles
- 1.8 V power supply
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应用领域
- LO捷变频
- 可编程时钟发生器
- 雷达和扫描系统的FM线性调频源
- 汽车雷达
- 测试与测量设备
- 声光器件驱动器
- Agile LO frequency synthesis
- Programmable clock generators
- FM chirp source for radar and scanning systems
- Automotive radars
- Test and measurement equipment
- Acousto-optic device drivers
技术指标
- Master fclk : 400MHz
- Resolution (Bits): 14bit
- Tuning Word Width (bits): 32bit
- I/O Interface: Serial
- REFCLK Multiplier: Yes
- Compliance Range (V): 2.05V
- FS Iout (mA nom): 10mA
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订购指南
产品型号 |
封装 |
引脚 |
温度范围 |
包装和数量 |
报价*(100-499) |
报价*1000 pcs |
RoHS |
AD9954YSVZ 产品状态: 量产 |
48 ld TQFP-EP (3.5mm exposed pad) |
48 |
工业 |
Tray, 250 |
$ 20.53 |
$ 17.45 |
Y 材料信息 |
AD9954YSVZ-REEL7 产品状态: 量产 |
48 ld TQFP-EP (3.5mm exposed pad) |
48 |
工业 |
Reel, 500 |
$ 20.53 |
$ 17.45 |
Y 材料信息 |
开发工具
产品型号 |
描述 |
报价 |
RoHS |
AD9954/PCBZ 产品状态: 量产 |
Evaluation Board |
$ 400.00 |
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AD9954 应用技术支持与电子电路设计开发资源下载
- AD9954 数据手册DataSheet 下载 . pdf
- ADI 模拟器件公司比较器产品选型指南 . pdf
- Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf