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Products
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Control Products
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Attenuators
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RFSA3523

RFSA3523

5 - 6000 MHz Serial Controlled Digital Step Attenuator, 5-Bit, 0.5 dB Steps

Qorvo's RFSA3523 is a 5-bit digital step attenuator (DSA) that features high linearity over the entire 15.5dB gain control range with 0.5dB steps. The RFSA3523 uses serial control interface. The RFSA3523 has a low insertion loss of 1.4dB at 2GHz. Patent pending circuit architecture provides overshoot-free transient switching performance. External address pins allow up to eight DSAs to be controlled on a single bus. The RFSA3523 is available in a 3mm x 3mm QFN package.

Discontinued
i
End of Life announced May 29, 2020 (PCN 20-0070).
Last Time Buy: December 9, 2020
Contact your local sales representative for assistance.
Product Data Sheet01/28/2015
Buy OnlineRequest a SampleContact Sales
Buy OnlineRequest a SampleContact Sales

Key Features

  • 5-Bit, 15.5dB Range, 0.5dB Step
  • Patented Circuit Architecture
  • Overshoot-free Transient Switching Performance
  • Frequency Range 5MHz to 6000MHz
  • High Linearity, IIP3 >55dBm
  • Serial Control Interface
  • Fast Switching Speed, <120nsec Typical
  • Serial Addressable Supports Up to Eight Addresses
  • Single Supply 3V to 5V Operation
  • RF Pins Have No DC Voltage, Can be DC Grounded Externally
  • Power-up Default Setting Is Maximum Attenuation

Parameters

Frequency Min (MHz)
5
Frequency Max (MHz)
6,000
Insertion Loss (dB)
1.4
Attenuation Range (dB)
15.5
IP0.1dB (dBm)
30
IIP3 (dBm)
55
Interface
Serial
Bits
5
Step Size (dB)
0.5
Voltage (V)
5
Package Type
QFN
Package Size (mm)
3.0 x 3.0 x 0.85
ECCN
5A991.G

Technical Documents

Filters
2 results found
All (2)
  • Product Data Sheet

    01/28/2015
    Data Sheet
  • RFSA3523 Manufacturing Notes

    Application Note
Results per page
10

Design Resources

Filters
1 result found
All (1)
  • Software

    CBG software v1.9.3

    Software
Results per page
10

Need more support?

At Qorvo, our customers are a core part of what we do, and we want every experience you have with us to be as reliable as our products. If you have a question or if something isn't working the way you expect, please let us know.

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Qorvo products are at work connecting, protecting and powering the planet. We bring core radio frequency (RF) and power technologies and solutions to automotive, consumer, defense & aerospace, industrial & enterprise, infrastructure and mobile markets.

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© 2026 Qorvo US, Inc

|

+1-833-641-3810

/
Products
/
Control Products
/
Attenuators
/
RFSA3523

RFSA3523

5 - 6000 MHz Serial Controlled Digital Step Attenuator, 5-Bit, 0.5 dB Steps

Qorvo's RFSA3523 is a 5-bit digital step attenuator (DSA) that features high linearity over the entire 15.5dB gain control range with 0.5dB steps. The RFSA3523 uses serial control interface. The RFSA3523 has a low insertion loss of 1.4dB at 2GHz. Patent pending circuit architecture provides overshoot-free transient switching performance. External address pins allow up to eight DSAs to be controlled on a single bus. The RFSA3523 is available in a 3mm x 3mm QFN package.

Discontinued
i
End of Life announced May 29, 2020 (PCN 20-0070).
Last Time Buy: December 9, 2020
Contact your local sales representative for assistance.
Product Data Sheet01/28/2015
Buy OnlineRequest a SampleContact Sales
Buy OnlineRequest a SampleContact Sales

Key Features

  • 5-Bit, 15.5dB Range, 0.5dB Step
  • Patented Circuit Architecture
  • Overshoot-free Transient Switching Performance
  • Frequency Range 5MHz to 6000MHz
  • High Linearity, IIP3 >55dBm
  • Serial Control Interface
  • Fast Switching Speed, <120nsec Typical
  • Serial Addressable Supports Up to Eight Addresses
  • Single Supply 3V to 5V Operation
  • RF Pins Have No DC Voltage, Can be DC Grounded Externally
  • Power-up Default Setting Is Maximum Attenuation

Parameters

Frequency Min (MHz)
5
Frequency Max (MHz)
6,000
Insertion Loss (dB)
1.4
Attenuation Range (dB)
15.5
IP0.1dB (dBm)
30
IIP3 (dBm)
55
Interface
Serial
Bits
5
Step Size (dB)
0.5
Voltage (V)
5
Package Type
QFN
Package Size (mm)
3.0 x 3.0 x 0.85
ECCN
5A991.G

Technical Documents

Filters
2 results found
All (2)
  • Product Data Sheet

    01/28/2015
    Data Sheet
  • RFSA3523 Manufacturing Notes

    Application Note
Results per page
10

Design Resources

Filters
1 result found
All (1)
  • Software

    CBG software v1.9.3

    Software
Results per page
10

Need more support?

At Qorvo, our customers are a core part of what we do, and we want every experience you have with us to be as reliable as our products. If you have a question or if something isn't working the way you expect, please let us know.

Forum

Forum

Engage with the Qorvo community, ask technical questions and share insights.

Support

Support

Get technical, application or customer support plus updates on supply chain and FAQs.

Sales

Sales

Connect with our sales team to gain tailored solutions, expert guidance and access to the latest technologies.

Stay up to date with us.

Sign up for notification on new products, product/process change notifications (PCNs) and end of life (EOL) alerts.

Sign Up

Qorvo products are at work connecting, protecting and powering the planet. We bring core radio frequency (RF) and power technologies and solutions to automotive, consumer, defense & aerospace, industrial & enterprise, infrastructure and mobile markets.

Stay Connected

  • Facebook
  • X
  • LinkedIn
  • YouTube
  • Products
  • Solutions
  • Design Hub
  • New Products
  • Product Compliance
  • Blog Posts
  • Events & Trade Shows
  • News Releases
  • Success Stories
  • Technical Articles
  • About Us
  • Careers
  • Corporate Videos
  • Quality
  • Locations
  • Investors
  • How to Buy
  • Forums
  • Portals
  • Contact Us
  • Subscription Center
Site MapFeedbackLegalPrivacySupply Chain Transparency

© 2026 Qorvo US, Inc

|

+1-833-641-3810

Qorvo
  • Products
  • Solutions
  • Design Hub
  • Support
  • About Us
Qorvo
Qorvo
Qorvo
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  • Solutions
  • Design Hub
  • Support
  • About Us
Qorvo
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