QPL9503
Ultra Low-Noise Flat-Gain LNA
Key Features
- 0.6 – 6.0 GHz Operational bandwidth
- Ultra-Low Noise Figure, 0.9 dB at 5.5 GHz
- Bias Adjustable for Linearity Optimization
- 35 dBm OIP3 at 65 mA IDD
- Integrated shut-down control pin
- Shut-down mode pin with 1.8 V TTL logic compatible
- Unconditionally stable
- Maintains OFF state isolation with high Pin drive
- +3 to +5 V supply; does not require -Vgg
The QPL9503 is a flat-gain, high-linearity, ultra-low noise amplifier in a small 2 x 2 mm surface-mount package. The LNA provides a gain flatness of 2 dB (peak-to-peak) over a wide bandwidth from 3 to 6 GHz. At 5.5 GHz, the amplifier typically provides 21.6 dB gain, +35 dBm OIP3 at a 65 mA bias setting, and 0.9 dB noise figure. The LNA can be biased from a single positive supply ranging from 3.3 to 5 volts. The device is housed in a green/RoHS-compliant industry-standard 2x2 mm package.
The QPL9503 is internally matched using a high performance E-pHEMT process and only requires five external components for operation from a single positive supply: an external RF choke and blocking/bypass capacitors and a bias resistor going to pin 1. This LNA integrates a shut-down biasing capability to allow for operation in TDD applications.
The QPL9503 is optimized for linear performance across the 3 to 6 GHz frequency band but can operate down to 600 MHz.
Typical Applications
- Base Station Receivers
- Tower Mount Amplifiers
- Repeaters
- FDD-LTE, TDD-LTE, WCDMA
- General Purpose Wireless
Product Categories
Application Categories
| Frequency Min(GHz) | 0.6 |
| Frequency Max(GHz) | 6 |
| Gain(dB) | 21.6 |
| NF(dB) | 0.9 |
| OP1dB(dBm) | 19 |
| OIP3(dBm) | 35 |
| Voltage(V) | 5 |
| Current(mA) | 65 |
| Package(mm) | 2.0 x 2.0 |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
X-Microwave Design System
This product is available as an X-Microwave Block (X-MWblock) for evaluation.
X-MWblocks are RF and microwave "drop-in" components that can be used individually for prototyping or in production assemblies. X-MWblocks are easy to test, integrate, align, and configure to 60 GHz and beyond. No messy sweat soldering or silver epoxy processes are required. X-MWblocks are highly characterized with S-parameter models and connect with a patented solder-less interconnect technology.
This product appears in the following application block diagrams: