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Products
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Amplifiers
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CATV Amplifiers
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QPB8957

QPB8957

47 - 1000 MHz 28 dB CATV Doubler Amplifier

The QPB8957 is a GaAs pHEMT/MESFET 75-ohm Doubler RF amplifier IC featuring over 28 dB of flat gain and low noise. This IC is designed to support DOCSIS applications up to 1000 MHz using a single 24 V supply. The QPB8957 offers low noise and low distortion at high efficiency consuming only 8.4 W in a 5.0 x 7.0 QFN package. Its compact size and low Θ jc enable integration that is ideally suited for hybrid module or an alternative to hybrid module applications.

Not Recommended For New Designs
i
Product Data SheetRev E – 07/29/2021
Buy OnlineRequest a SampleContact Sales
Buy OnlineRequest a SampleContact Sales

Key Features

  • High Gain: 28 dB @ 1000 MHz
  • Adjustable Bias
  • 56 dBmV/ch virtual 1.0 GHz, at 15 dB tilt
  • Low Noise: 4.5 dB
  • Excellent Composite Distortion
  • Compact Size: 40P 5.0 x 7.0 QFN

Typical Applications

  • DOCSIS 3.0
  • Broadband CATV hybrid modules
  • Head End CMTS Equipment
  • 75-ohm amplifiers

Parameters

Type
PA
Frequency Min (MHz)
47
Frequency Max (MHz)
1,000
Gain (dB)
28
TCP (dBmV)
N/A
CCN (dB)
N/A
MER (dB)
N/A
NF (dB)
4.5
Voltage (V)
24
Current (mA)
350
Package Type
40P QFN
Package Size (mm)
5.0 x 7.0
RoHS
Yes
Lead Free
Yes
Halogen Free
Yes
ITAR Restricted
No
ECCN
5A991G

Technical Documents

Filters
3 results found
All (3)
  • Product Data Sheet

    Rev E – 07/29/2021
    Data Sheet
  • Qorvo Broadband Access, CATV Product Selection Guide

    04/30/2026
    Brochure
  • PCB Symbol, Footprint & 3D Model (provided by SamacSys)

    PCB Layout Files
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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© 2026 Qorvo US, Inc

|

+1-833-641-3810

/
Products
/
Amplifiers
/
CATV Amplifiers
/
QPB8957

QPB8957

47 - 1000 MHz 28 dB CATV Doubler Amplifier

The QPB8957 is a GaAs pHEMT/MESFET 75-ohm Doubler RF amplifier IC featuring over 28 dB of flat gain and low noise. This IC is designed to support DOCSIS applications up to 1000 MHz using a single 24 V supply. The QPB8957 offers low noise and low distortion at high efficiency consuming only 8.4 W in a 5.0 x 7.0 QFN package. Its compact size and low Θ jc enable integration that is ideally suited for hybrid module or an alternative to hybrid module applications.

Not Recommended For New Designs
i
Product Data SheetRev E – 07/29/2021
Buy OnlineRequest a SampleContact Sales
Buy OnlineRequest a SampleContact Sales

Key Features

  • High Gain: 28 dB @ 1000 MHz
  • Adjustable Bias
  • 56 dBmV/ch virtual 1.0 GHz, at 15 dB tilt
  • Low Noise: 4.5 dB
  • Excellent Composite Distortion
  • Compact Size: 40P 5.0 x 7.0 QFN

Typical Applications

  • DOCSIS 3.0
  • Broadband CATV hybrid modules
  • Head End CMTS Equipment
  • 75-ohm amplifiers

Parameters

Type
PA
Frequency Min (MHz)
47
Frequency Max (MHz)
1,000
Gain (dB)
28
TCP (dBmV)
N/A
CCN (dB)
N/A
MER (dB)
N/A
NF (dB)
4.5
Voltage (V)
24
Current (mA)
350
Package Type
40P QFN
Package Size (mm)
5.0 x 7.0
RoHS
Yes
Lead Free
Yes
Halogen Free
Yes
ITAR Restricted
No
ECCN
5A991G

Technical Documents

Filters
3 results found
All (3)
  • Product Data Sheet

    Rev E – 07/29/2021
    Data Sheet
  • Qorvo Broadband Access, CATV Product Selection Guide

    04/30/2026
    Brochure
  • PCB Symbol, Footprint & 3D Model (provided by SamacSys)

    PCB Layout Files
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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  • Design Hub
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