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Low Noise Amplifier, 9kHz~3GHz, Gain 20dB, NF 1.2dB

Low Noise Amplifier, 9kHz~3GHz, Gain 20dB, NF 1.2dB

Qualwave has launched the following broadband low noise amplifiers, with operating frequencies covering 9kHz~3GHz. These devices are manufactured using advanced processes, enabling operation across an extremely wide spectral range. The chip integrates a limiter protection circuit internally, specifically designed for RF receive front-ends that require both high sensitivity and high reliability.

Features:

1. Ultra-wideband coverage: Supports the 9kHz~3GHz frequency band, compatible with various communication standards such as shortwave, cellular communication, ISM bands, and Wi-Fi 6E.
2. High-gain performance: Provides up to 20dB of gain, significantly amplifying weak signals and simplifying the design of downstream circuits.
3. Low noise figure: With a noise figure as low as 1.2dB, it ensures excellent signal-to-noise ratio and reception sensitivity even with weak signals.
4. Built-in limiter protection: Integrated anti-burnout limiter circuit, capable of withstanding high-power RF input surges, effectively safeguarding downstream components in complex electromagnetic environments.

Applications:

1. Telecom infrastructure: Suitable for 5G Sub-6GHz base stations and repeaters, enhancing the uplink reception sensitivity.
2. Aerospace and defense: Suitable for software-defined radio, electronic reconnaissance, and UAV data links, ensuring stable operation in high-interference environments.
3. Testing, measurement, and general wireless: As a front-end amplification module for broadband instruments and key receiving components for satellite communication terminals and IoT gateways.

Qualwave Inc. provide ultra-wideband low noise amplifiers with frequencies up to 260GHz. This article introduces a low noise amplifier with a gain of 20dB, a noise figure of 1.2dB, and a bandwidth range of 9kHz~3GHz.

1. Electrical Characteristics

Frequency: 9kHz~3GHz
Gain: 20dB typ.
Gain Flatness: ±1.5dB typ.
Output Power (P1dB): 19dBm typ.
Output Power (Past): 20dBm typ.
Noise Figure: 1.2dB typ.
Spurious: -60dBc max.
VSWR: 1.4 typ.
Reverse Isolation: -25dB typ.
Voltage: +5V DC (Outline A)
+6~15V DC (Outline B)
Current: 60mA typ.
Impedance: 50Ω

2. Absolute Maximum Ratings*1

RF Input Power: +18dBm
Voltage: +6V (Outline A)
+20V (Outline B)
[1] Permanent damage may occur if any of these limits are exceeded.

3. Mechanical Properties

RF Connectors: SMA Female (Removable)

4. Outline Drawings

QLA-9K-3000-20-12-水印
QLA-9K-3000-20-12cct

Unit: mm [in]
Tolerance: ±0.5mm [±0.02in]

5. Environmental

Operating Temperature: -55~+85℃
Non-operating Temperature: -55~+125℃

6. How To Order

QLA-9K-3000-20-12 - Outline A
QLA-9K-3000-20-12-1 - Outline B

We believe that our competitive pricing and robust product line can greatly benefit your operations. Kindly reach out should you wish to ask any questions.


Post time: Aug-13-2026