Introduction

The High Linearity Low Noise Amplifier (BR9554FD) is designed for RF front-end signal amplification. Covering 30 MHz–4 GHz, it provides stable gain and reliable signal amplification for communication, radar, and navigation systems.

Advantage

High Linearity
36.6 dBm OIP3 and 20.9 dBm P1dB maintain signal quality and reduce distortion under high signal levels.

Low Noise Performance
2.2 dB noise figure helps amplify weak signals while minimizing added noise.

Stable Gain
15.4 dB gain with ±0.3 dB flatness ensures consistent amplification across the band.

Compact QFN16 Package
Small surface-mount package suitable for compact RF modules and communication devices.

Specification

Frequency	30MHz ~ 4GHz
Gain	15.4dB@1.8GHz
Gain flatness	±0.3dB@50MHz~4GHz
Output power for 1dB compression	20.9dBm@1.8GHz
Noise figure	2.2dB@1.8GHz
Output third-order interception	36.6dBm@1.8GHz
Supply current	95mA @ Vdd=5V
Package	QFN16

Products Parameter

Parameter	Typ.											Units
Frequency	30	100	200	400	600	800	1000	1200	1400	1600	1800	MHz
Gain	16.3	15.5	15.5	15.5	15.4	15.4	15.4	15.4	15.4	15.4	15.4	dB
Input return loss	-7.2	-13.4	-15.4	-16.4	-16.5	-15.8	-15.2	-14.4	-14.1	-14.1	-14.3	dB
Output return loss	-20.7	-31.1	-32.3	-29.4	-27.0	-24.6	-22.3	-20.4	-19.4	-19.3	-19.9	dB
Reverse isolation	-20.5	-19.8	-19.4	-19.6	-19.7	-19.3	-19.5	-20.0	-19.7	-19.6	-19.8	dB
Output power for 1dB compression	17.8	18.6	19.5	20.5	20.5	20.4	20.5	20.9	20.9	20.8	20.9	dBm
Output third-order interception	37.9	38.6	38.6	38.9	38.2	37.9	37.6	37.5	37.1	36.7	36.6	dBm
Noise figure	1.9	2.3	2.2	2.1	2.1	2.1	2.2	2.2	2.2	2.1	2.2	dB
Frequency	2000	2200	2400	2600	2800	3000	3200	3400	3600	3800	4000	MHz
Gain	15.4	15.4	15.4	15.4	15.4	15.4	15.4	15.4	15.4	15.3	15.2	dB
Input return loss	-14.9	-15.7	-16.9	-18.1	-19.7	-20.5	-20.4	-19.4	-17.9	-16.5	-15.3	dB
Output return loss	-20.8	-22.2	-24.5	-27.8	-32.6	-31.9	-27.3	-24.5	-22.9	-21.9	-21.3	dB
Reverse isolation	-19.8	-20.0	-20.0	-19.7	-19.9	-20.1	-20.0	-20.0	-20.2	-20.2	-20.3	dB
Output power for 1dB compression	21.0	20.9	20.9	20.6	20.2	20.2	20.0	19.6	19.3	19.3	18.9	dBm
Output third-order interception	36.3	36	36.1	36.3	35.3	35	35.1	34.4	34.9	33.8	34	dBm
Noise Figure	2.3	2.3	2.4	2.4	2.3	2.3	2.4	2.4	2.4	2.5	2.4	dB
Test condition: Vdd=+5V, I=95mA, OIP3 spacing=1MHz, Pout=5dBm/tone, TA=+25℃

Application

Communication Systems

Improve weak RF signal reception in wireless communication equipment.

Radar Systems

Enhance signal amplification in RF front-end radar modules.

Unmanned Aerial Systems

Support RF signal processing in UAV communication and sensing systems.

Packaging & Shipping

Anti-static bags, desiccants, and protective foam prevent electrostatic and mechanical damage.
Bulk orders available in Tape & Reel or Tray packaging (JEDEC/IPC compliant).
Supports DHL, UPS, FedEx, air freight, and sea freight worldwide.

What We Offer

Product Selection - Recommend suitable RF components based on customer application requirements.
Technical Consulting - Provide product specifications, test data, and other necessary technical documentation.
Engineering Support - Professional R&D engineers offer system-level guidance and integration support.
Technical Assistance - Rapid response service including product selection guidance, solution support, and free sample evaluation.

Why Partner with Us

Strong R&D Capability
1800+ employees with 70% in R&D drive continuous innovation in radar, AI, and electronic technologies.

Extensive Industry Experience
Over 20 years delivering practical solutions for real-world applications.

Flexible Customization Service
Products and systems can be tailored to customer needs, supporting OEM and project solutions.

Large-Scale Manufacturing Base
A 20,000 m² production facility ensures stable production capacity and reliable quality control.

Our Certificate

Our products comply with international quality and safety standards such as CE, FCC, and ISO.

02-ISO ROHS

FAQ

Q: What are your LNA linearity and noise performance specifications?

A: Yes, we can provide complete test reports, including OIP3, NF, and Gain, and support customized data by frequency band.

Q: What is your MOQ and pricing structure?

A: Standard MOQ is 500–1000 pcs; tiered pricing is available for large orders.

Q: What is your quality control process?

A: Each batch undergoes 100% functional testing (Gain, NF, OIP3, S11, stability). High and low temperature cycling and aging screening are also performed.

Q: Do you have commonly used models in stock? What is the lead time?

A: Mainstream frequency band models are always in stock and can be shipped on the same day; customized models have a lead time of 2–4 weeks.

Q: What about long-term supply capabilities?

A: Core models are guaranteed for 5-10 years of long-term supply, with material backup plans to avoid the risk of production stoppages.

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