Qorvo QPC3614 Digital Step Attenuators
Qorvo QPC3614 Digital Step Attenuators feature a patented circuit architecture that provides overshoot-free transient switching performance. Qorvo QPC3614 attenuators have a high linearity over the entire 31.5dB gain control range in 0.5dB steps. The attenuators have a low insertion loss of 1.2dB at 1GHz and three modes of control: serial, latched parallel, and direct parallel programming. QPC3614 attenuators are available in a 20-pin 4.2x4.2x0.90mm QFN package.
Features
- 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
Applications
- Optical nodes
- Point-to-point
- MDU amplifiers
- Pre-amplifier attenuation
- Interstage attenuation
- Return attenuation
- Automatic gain control
- Tilt control
Block Diagram
Published: 2017-12-06
| Updated: 2022-04-29