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698MHz to 3800MHz RF Power Amplifier Linearizer (RFPAL)

5MHz to 100MHz Signal Bandwidth PA Linearizer for 4G and 5G Cellular Infrastructure

Product Details

Key Features

Applications/Uses

Parametric specs for RF Predistortion ICs
Frequency Range (MHz) 698 to 3800
Input Signal Bandwidth (MHz) (min) 5
Input Signal Bandwidth (MHz) (max) 100
PA Architecture Class AB
Closed Loop
Doherty
Open Loop
VSUPPLY (V) 3.3, 1.8
Footprint (mm x mm) 9.0 x 9.0
Package/Pins SAWN QFN/64
Oper. Temp. (°C) -40 to +105
Budgetary
Price (See Notes)
69.23
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Simplified Block Diagram

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Parameters

Parametric specs for RF Predistortion ICs
Frequency Range (MHz) 698 to 3800
Input Signal Bandwidth (MHz) (min) 5
Input Signal Bandwidth (MHz) (max) 100
PA Architecture Class AB
Closed Loop
Doherty
Open Loop
VSUPPLY (V) 3.3, 1.8
Footprint (mm x mm) 9.0 x 9.0
Package/Pins SAWN QFN/64
Oper. Temp. (°C) -40 to +105
Budgetary
Price (See Notes)
69.23

Key Features

  • RFin/RFout PA Linearizer SoC in Standard CMOS
    • Fully Adaptive Correction
  • External Reference Clock Support:
    • 10MHz, 13MHz, 15.36MHz, 19.2MHz, 20MHz, 26MHz, and 30.72MHz
  • Low Power Consumption: 1280mW
  • Frequency Range: 698MHz to 3800MHz
  • Input Signal Bandwidth: 5MHz to 100MHz
  • Packaged in 9mm x 9mm QFN Package
  • Operating Case Temperature: -40°C to +105°C
  • Fully RoHS Compliant, Green Materials
  • Ease of Use
    • Integrated RFin/RFout Solution
    • Reduced SW Development
  • Reduces System Power Consumption and OPEX
  • Reduces BOM Costs, Area, and Total Volume
    • Smaller Power Supply, Heat Sink, and Enclosure
    • Small Implementation Size (< 6.5cm2)

Applications/Uses

  • 4G and 5G Cellular Infrastructure
  • Amplifier: Class A/AB and Doherty
  • Any Application Requiring PA Linearization
  • BTS Amplifiers, RRH, Booster Amplifiers, Repeaters, Small Cells, Microcells, Picocells, DAS, AAS, and MIMO Systems
  • PA Process: LDMOS, GaN, GaAs, and InGaP
  • Single/Multicarrier, Multistandard: WCDMA, LTE, and TD-LTE
  • Wide Range of PAs and Output Power

Description

The SC1905 is a pin-compatible upgrade of the popular SC1894 RF PA linearizer (RFPAL) supporting signal bandwidths up to 100MHz. The SC1905 is a fully adaptive, RFin/RFout predistortion linearization solution optimized for a wide range of amplifiers, power levels, and communication protocols. The SC1905 uses the PA output and input signals to adaptively generate an optimized correction function in order to minimize the PA’s self-generated distortion and impairments. Using RF-domain analog signal processing enables the SC1905 to operate over wide-signal bandwidths and consume very low power.

Design support features are accessed through the SC1905’s serial peripheral interface (SPI) bus.

Simplified Block Diagram

SC1905: Typical Application Circuits SC1905: Typical Application Circuits Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .