Qorvo QPL1825 GaAs pHEMT CATV Amplifier
Qorvo QPL1825 GaAs pHEMT CATV Amplifier is a highly linear differential RF amplifier built on GaAs pHEMT technology. The device's cascode architecture delivers 25.5dB of gain and maintains exceptionally low distortion across a wide operating bandwidth of 50MHz to 1.8GHz. Engineered for next‑generation broadband CATV DOCSIS 4.0 systems, the Qorvo QPL1825 is ideal for use in nodes, line amplifiers, Remote PHY devices, FTTH equipment, home gateways, and cable modems. The amplifier runs from a single 8V supply, with adjustable current settings between 260mA and 350mA. At 8V/350mA, the device achieves a 66dBmV TCP and a 50dB CCN. The QPL1825 is housed in a compact 12‑pin, 5mm × 5mm laminate module, offering a small footprint suitable for space‑constrained RF designs.
Features
- 50MHz to 1800MHz frequency range
- 8V operation
- 25.5dB typical gain at 1800MHz, 23.5dB at 50MHz
- 66dBmV TCP at 8V
- 1.6/4dB noise figure at 50/1800MHz
- Adjustable bias using external resistors
- 12-pin 5mm x 5mm laminate MCM package
- RoHS-compliant
Applications
- DOCSIS 4.0 amplifiers
- DOCSIS 4.0 optical nodes
- DOCSIS 4.0 remote PHY devices
- FTTH GPON and GEPON
- DOCSIS 4.0 cable modems and home gateways
Specifications
- 8V typical supply voltage, 10V maximum
- 350mA typical supply current, 400mA maximum
- 65dBmV maximum input level
- 2.0dB typical gain slope
- ±0.25dB typical gain flatness
- 28dB typical reverse isolation
- Input return loss
- -20dB at 100MHz to 1200MHz
- -18dB at 1200MHz to 1800MHz
- Output return loss
- -19dB at 100MHz to 1200MHz
- -18dB at 1200MHz to 1800MHz
- -40°C to +100°C operating temperature range
- +150°C maximum junction temperature
- 12°C/W typical thermal resistance
Functional Block Diagram
Development Tool
Qorvo QPL1825EVB-03 Evaluation Board
Supports testing and characterization of the QPL1825 GaAs pHEMT differential RF amplifier.