Blog dell'azienda Mingjiada Supply Qorvo QPA9501 5100MHz To 5900MHz, 3-Stage LTE-U / LAA Power Amplifier

Mingjiada Supply Qorvo QPA9501 5100MHz To 5900MHz, 3-Stage LTE-U / LAA Power Amplifier

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of Qorvo QPA9501 power amplifiers. Designed for LTE-U/LAA applications in the 5100–5900 MHz band, this device utilises a three-stage amplification architecture and is suitable for RF front-end designs in small cells, indoor distribution systems and wireless broadband access.

RF Challenges for LTE-U/LAA in the 5 GHz Band
With mobile data traffic continuing to grow, operators are constantly expanding network capacity through Licensed Assisted Access (LAA) and unlicensed LTE (LTE-U). The 5100–5900 MHz band, as a key component of the 5 GHz unlicensed spectrum, is widely used in LTE-U/LAA small cells, indoor coverage and wireless broadband access equipment.
In this band, the RF front-end must maintain stable gain and linearity across a wide bandwidth whilst balancing efficiency and thermal management. As the core component of the transmit chain, the performance of the power amplifier directly impacts coverage, signal quality and system power consumption. The Qorvo QPA9501 is a three-stage power amplifier specifically designed for such 5 GHz band LTE-U/LAA applications.

Qorvo QPA9501 Product Overview
The QPA9501 is a high-power amplifier module that integrates an internally matched three-stage power amplifier (PA), a DC bias compensation circuit and an output power detector. This PA module is optimised for the 5.1–5.9 GHz Wi-Fi band, making it ideally suited for LTE-U applications. At an output power (Pout) of 22 dBm whilst processing a 20 MHz LTE signal, the module delivers high gain (32 dB) and an ACLR of –47 dBc without the need for any digital pre-distortion (DPD). The QPA9501 features control voltages compatible with chipset logic, as well as a buffered power amplifier enable pin (PAEN); all of these exhibit extremely low current consumption, making it easy to use and compatible with current and future generations of transceivers. Thanks to its optimised power consumption design, this amplifier module is ideally suited for next-generation MIMO configurations and is designed to support both digital pre-distortion (DPD) and DPD-free operating modes. The QPA9501 is housed in a compact 4.0 × 4.0 × 0.85 mm 20-pin QFN package.

Key Features of the QPA9501
5.1 – 5.9 GHz operating bandwidth
Fully integrated power amplifier module with power detector
Internally matched inputs/outputs
ACLR of –47 dBc at Pout = 22 dBm
32 dB gain
Temperature-compensated bias network
Integrated shutdown pin compatible with TTL logic
3.3 V – 5 V supply voltage range

QPA9501 Typical Applications
5G
Backhaul radio
Industrial, Scientific and Medical (ISM)
LTE-U/LAA
5G pre-generation small cells (BTS)
Point-to-point communication
In-vehicle information systems

In 5 GHz LTE-U/LAA RF front-end designs, the frequency coverage, linearity and thermal management of the power amplifier directly impact system coverage and signal quality. With its 5100–5900 MHz frequency coverage and three-stage amplification architecture, the Qorvo QPA9501 provides an RF amplification solution for small cells and wireless broadband access equipment.

For information on stock availability, pricing, minimum order quantities and lead times for the Qorvo QPA9501, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further details.
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