Top

Low-Power DOCSIS 3.1 Programmable-Gain Amplifier

Low Power Upstream Programmable Gain Amplifier (PGA) for DOCSIS 3.1

Product Details

Key Features

Applications/Uses

Parametric specs for Programmable Gain Amplifiers
Interface Type SPI
RF Freq. (MHz) (min) 5
RF Freq. (MHz) (max) 204
Gain Range (dB) -24 to +38
VSUPPLY (V) (min) 4.75
VSUPPLY (V) (max) 5.25
Package/Pins TQFN/20
Budgetary
Price (See Notes)
1.41
View More

Simplified Block Diagram

Technical Docs

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 .

Parameters

Parametric specs for Programmable Gain Amplifiers
Interface Type SPI
RF Freq. (MHz) (min) 5
RF Freq. (MHz) (max) 204
Gain Range (dB) -24 to +38
VSUPPLY (V) (min) 4.75
VSUPPLY (V) (max) 5.25
Package/Pins TQFN/20
Budgetary
Price (See Notes)
1.41

Key Features

  • Delivers +68dBmV Output Power While Meeting DOCSIS 3.1 Requirements
  • Covers 5MHz–204MHz Output Bandwidth
  • 3.5W Power Consumption with 5V Supply Voltage
  • Programmable Power Codes Allow Operation at Reduced Power Dissipation
  • Exceeds Spurious Requirements with Fully Loaded OFDM Allocation at +65dBmV at Modem Output
  • 20L 5mm x 5mm x 0.75mm TQFN Package with Exposed Paddle
  • Applications/Uses

    • Cable Modem (CM)
    • Customer Premises Equipment (CPE)
    • DOCSIS 3.1 Upstream (D3.1 US)

    Description

    The MAX3523 is a programmable gain amplifier (PGA) designed to exceed the DOCSIS 3.1 upstream transmit requirements. The PGA meets the DOCSIS 3.1 spurious limits while transmitting a combined output power of 68dBmV over the RF bandwidth of 5MHz to 204MHz. The gain is controlled in 1dB steps over a 60dB range using an SPI 3-wire interface. The use of Maxim's high-voltage CMOS process enables the device to deliver high dynamic range while minimizing power dissipation under a +5V supply rail.

    The MAX3523 is available in a 20-pin 5mm x 5mm x 0.75mm TQFN package, and operates over temperature range of 0°C to +70°C.

    Simplified Block Diagram

    MAX3523: Simplified Block Diagram MAX3523: Simplified Block Diagram Zoom icon

    Technical Docs

    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 .