Analog Devices Inc. HMC1119 数字步进衰减器
Analog Devices HMC1119 数字步进衰减器是覆盖 0.1-6.0GHz 范围的宽带 7 位衰减器，以 0.25dB 步长提供 31.5dB 的衰减控制范围。 HMC1119 驱动器支持衰减器的串行（3 线）和并行控制。 该衰减器针对频率和温度范围内出色的步长精度和高线性度进行了优化。 该器件保持 ±0.2dB 的出色衰减精度，典型步进误差为 ±0.1dB。 HMC1119 的安全状态转换功能确保在射频信号链中安全运行各元件。 HMC1119 衰减器采用先进的硅工艺设计，功耗低，稳定时间快，ESD 稳健性高。 片上稳压器支持 3.3-5.0V 宽单电源运行范围，不会降低电气特性的性能。 该器件的开关时间为 ~100nsec，在 ~250nsec 稳定时间中为 0.05dB， 使 HMC1119 衰减器非常适合用于快速开关应用和时分多路复用系统。 在信号输入和输出上的稳健 2kV ESD 保护符合最严格的射频应用和装配要求。
High Accuracy and Low Insertion Loss
The HMC1119 attenuators are optimized for excellent step accuracy and high linearity over frequency and temperature range. The devices maintain excellent attenuation accuracy of ±0.2dB with a ±0.1dB typical step error. The HMC1119 family has a 1.1dB at 1GHz and a 1.3dB at 2GHz rating.
Advanced Silicon Design
Designed using an advanced silicon process, the HMC1119 attenuators offer low power consumption, fast settling time, and high ESD robustness. An on-chip regulator supports a wide, 3.3-5.0V single-supply operating range with no performance degradation in electrical characteristics. The device's ~100nsec switching and 0.05dB in ~250nsec settling times make the HMC1119 attenuators ideal for fast-switching applications and time division multiplexed systems. The robust 2kV ESD protection on signal inputs and outputs complies with the most stringent RF applications and assembly requirements.
Serial and Parallel Programming Interface
The HMC1119 driver supports serial (3-wire) and parallel controls of the attenuator.
Safe-state Transitions
HMC1119's safe-state transitions feature ensures the safe operation of the components in the RF signal chain.
Internally Matched
HMC1119's bidirectional, interchangeable RF inputs and outputs are internally matched to 50Ω. The RF inputs and outputs do not require any external matching components.
特性
- Attenuation range 0.25dB LSB steps to 31.75dB
- Low insertion loss
- 1.1dB at 1.0GHz
- 1.3dB at 2.0GHz
- Typical step error less than ±0.1dB
- Excellent attenuation accuracy less than ±0.2dB
- Low phase shift error 6° phase shift at 1.0GHz
- Safe state transitions
- High linearity
- 1dB compression (P1dB) 31dBm typical
- Input third-order intercept (IP3) 54dBm typical
- RF settling time (0.05dB final RF output) 250ns
- Single supply operation 3.3V to 5.0V
- ESD rating Class 2 (2kV human body model (HBM))
- 24-lead, 4mm× 4mm LFCSP package 16mm²
应用
- Cellular infrastructure
- Microwave radios and very small aperture terminals (VSATs)
- Test equipment and sensors
- IF and RF designs
Diagram
Evaluation Board
EVAL-HMC1119 Evaluation Board
Analog Devices EVAL-HMC1119 is a fully populated evaluation board that helps designers become familiar with the features of the HMC1119 Digital Step Attenuators.
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