FSF-5050-584M IF SAW Filter

Q: Do you provide samples and technical support for evaluation?

Yes. Share your receiver block diagram, IF plan and target metrics, and FCom can recommend the closest option and support your evaluation with samples and engineering guidance.

FSF-5050-584M is FCom Fuji Crystal’s 584 MHz IF SAW filter in a 5.0×5.0 mm SMD package for private radio, industrial telemetry and sub-GHz receiver front ends. Designed for low insertion loss, robust out-of-band rejection and stable volume performance, it helps protect downstream LNA/mixer dynamic range and supports consistent sensitivity in dense coexistence environments.

584 MHz 5.0×5.0 mm SMD Sub-GHz front end Production consistency

Supply modes: samples, volume production, and customization support. For an RFQ, share your IF plan, bandwidth target, interferer profile, and environmental requirements.

FSF-5050-584M 584 MHz IF SAW filter product image (5.0×5.0 mm SMD)

Key Features

584 MHz IF bandpass filtering for sub-GHz receiver chains
5.0×5.0 mm SMD footprint for efficient module integration
Designed to balance low loss and strong out-of-band rejection
Supports stable builds in volume production and multi-band platform planning
Engineering support for selection, matching guidance, and custom variants

Key Specs

Platform FSF-5050 IF SAW

Center Frequency 584 MHz

Package 5.0×5.0 mm SMD

Test-condition reminder: SAW filter performance (passband, insertion loss, rejection, group delay) is defined by official test limits and may depend on system impedance and matching. Refer to the datasheet and contact FCom for the configuration aligned to your receiver plan.

Detailed Specifications

Parameter	Typical Target	Notes
Center frequency	584 MHz	IF placement in sub-GHz receiver architectures
Package	5.0×5.0 mm SMD	Layout reuse may be possible across the FSF-5050 family (confirm with validation)
Passband / 3 dB bandwidth	See datasheet	Align to channel spacing, adjacent-channel mask, and IF plan
Insertion loss	See datasheet	Trade-off versus rejection; impacts cascaded NF and sensitivity
Out-of-band attenuation	See datasheet	Key for blocker suppression and dynamic range protection
Group delay	See datasheet	Confirm if demodulation is sensitive to delay ripple

Target Systems / Typical IF Placement

Target systems

Private and professional radio receiver front ends
Industrial telemetry links and remote monitoring receivers
Sub-GHz gateways and base-side equipment with coexistence constraints

Typical IF placement

FSF-5050-584M is commonly used as an IF channel-select element to reduce out-of-band energy before subsequent gain stages, helping stabilize sensitivity when strong blockers, spurs, or nearby emissions are present.

Model Positioning

FCom Model	Center Frequency	Package	Value Proposition
FSF-5050-584M	584 MHz	5.0×5.0 mm SMD	Stable IF filtering for 584 MHz sub-GHz receivers with a balanced low-loss / high-rejection profile, supporting modular integration and predictable volume builds.

Applications

Sub-GHz receiver performance often degrades in the field due to blockers, adjacent-channel energy, and platform-level coexistence. A properly selected IF SAW filter helps preserve dynamic range and reduce unwanted energy that can compress LNAs, mixers, or IF amplifiers.

Industrial telemetry and data backhaul
Private and professional radio receivers
Sub-GHz module preselection and IF filtering
Remote monitoring, control and safety systems
High-reliability IoT gateways and base-side equipment
Coexistence interference suppression in multi-band front ends

Selection and Design Notes

1) Start from your IF plan

Confirm your receiver architecture (superheterodyne or low-IF), target bandwidth, adjacent-channel spacing and LO plan around 584 MHz. This ensures the selected FSF-5050-584M option provides the right balance between insertion loss and rejection.

2) Protect downstream dynamic range

Sub-GHz coexistence often includes nearby ISM channels, strong uplink emitters and LO spurs. A well-matched IF SAW filter helps reduce intermodulation risk and stabilizes sensitivity across real-world interference profiles.

3) Matching and impedance notes

For RF signal integrity, keep traces short with continuous ground return and minimize unnecessary vias and sharp corners. Where needed, follow FCom matching recommendations to optimize insertion loss and stopband performance.

Ordering Code / Options

Ordering code: FSF-5050-584M (FSF-5050 platform, 5.0×5.0 mm SMD). If your IF plan is adjacent to 584 MHz or you need different passband/rejection targets, review nearby-frequency options and request an engineering recommendation.

Selection Path / Upgrade Options

Start with the FSF-5050 family hub, then validate selection using How to choose an optimal SAW filter and SAW filter PCB layout and ESD design. For receiver-level integration practices, see the application guide: Professional wireless receiver engineering guide.

Family Entry & Further Reading

Documents & downloads

Datasheet

Download FSF-5050-584M datasheet (PDF)

Need a test report, CoC, or help mapping specs to your IF plan? Contact FCom with your receiver architecture and target metrics.

Package drawing

Use this drawing for footprint review, placement planning, and documentation.

FAQ

What is the primary value of FSF-5050-584M?

FSF-5050-584M provides stable 584 MHz IF filtering with controlled passband behavior and robust out-of-band rejection, helping protect downstream dynamic range and improve sensitivity in real coexistence conditions.

Do you provide samples and technical support for evaluation?

Yes. Share your receiver block diagram, IF plan, and target metrics, and FCom can recommend the closest option and support your evaluation with samples and engineering guidance.

What about MOQ, lead time, and pricing?

This is a B2B RF component and pricing depends on spec targets, quantities, and logistics. Contact FCom with your annual volume, delivery plan, and requirements to receive an RFQ including MOQ and lead time.

Can you support custom bandwidth, rejection, or temperature options?

Yes. If your design has specific goals for passband shape, out-of-band attenuation, group delay, or operating environment, FCom can evaluate customized variants based on the FSF-5050 platform.

Can I reuse the PCB layout across the FSF-5050 platform?

The 5.0×5.0 mm platform supports consistent placement and mechanical footprint, which often helps multi-band designs. Final compatibility should be confirmed with your matching network and system validation.

How can I shorten my validation cycle?

Provide your IF frequency and bandwidth, interferer profile, LO plan, and key targets (insertion loss, rejection, group delay). This enables faster matching to an existing variant or a streamlined custom proposal.

Request RFQ, samples, or a custom evaluation

Contact FCom Fuji Crystal for FSF-5050-584M selection guidance, samples and test support. We can also evaluate custom passband, rejection and environmental targets aligned to your sub-GHz receiver roadmap.

Primary contact: Contact FCom (RFQ / technical support)

Certifications: ISO9001 and ISO14001