Qorvo QPC3614数字步进衰减器
Qorvo QPC3614数字步进衰减器采用获得专利的电路架构，可实现无过冲瞬态切换性能。QPC3614在31.5dB的完整增益控制范围内具有高线性度，步进为0.5dB。该衰减器具有1.2dB的低插入损耗（1GHz时），并具有三种控制模式：串行、锁存并行和直接并行编程。QPC3614衰减器采用20引脚4.2mmx4.2mmx0.90mm QFN封装。
特性
- 6-bit, 31.5dB range, 0.5dB step
- Patented circuit architecture
- Overshoot-free transient switching performance
- 5MHz to 1500MHz frequency range
- 65dBm high linearity, IIP3 typical at 1GHz
- Serial and parallel control interfaces
- <500ns typical switching speed
- RF pads have no DC Voltage and can be DC grounded externally
- Option to turn off negative voltage generator and supply VSS externally
- Power-up default setting is maximum attenuation
应用
- Optical nodes
- Point-to-point
- MDU amplifiers
- Pre-amplifier attenuation
- Interstage attenuation
- Return attenuation
- Automatic gain control
- Tilt control
Block Diagram
发布日期: 2017-12-06
| 更新日期: 2022-04-29