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SiGe High-Linearity, 815MHz to 995MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity 1GHz SiGe Mixer for 2.5G and 3G Base Stations

Product Details

The MAX9986 high-linearity downconversion mixer provides 10dB gain, +23.6dBm IIP3, and 9.3dB NF for 815MHz to 995MHz base-station receiver applications. With a 960MHz to 1180MHz LO frequency range, this particular mixer is ideal for high-side LO injection receiver architectures. Low-side LO injection is supported by the MAX9984, which is pin-for-pin and functionally compatible with the MAX9986.

In addition to offering excellent linearity and noise performance, the MAX9986 also yields a high level of component integration. This device includes a double-balanced passive mixer core, an IF amplifier, a dual-input LO selectable switch, and an LO buffer. On-chip baluns are also integrated to allow for single-ended RF and LO inputs. The MAX9986 requires a nominal LO drive of 0dBm, and supply current is guaranteed to be below 265mA.

The MAX9984/MAX9986 are pin compatible with the MAX9994/MAX9996 1700MHz to 2200MHz mixers, making this entire family of downconverters ideal for applications where a common PC board layout is used for both frequency bands. The MAX9986 is also functionally compatible with the MAX9993.

The MAX9986 is available in a compact, 20-pin, thin QFN package (5mm x 5mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

Key Features

  • 815MHz to 995MHz RF Frequency Range
  • 960MHz to 1180MHz LO Frequency Range (MAX9986)
  • 570MHz to 850MHz LO Frequency Range (MAX9984)
  • 50MHz to 250MHz IF Frequency Range
  • 10dB Conversion Gain
  • +23.6dBm Input IP3
  • +12dBm Input 1dB Compression Point
  • 9.3dB Noise Figure
  • 67dBc 2LO-2RF Spurious Rejection at PRF = -10dBm
  • Integrated LO Buffer
  • Integrated RF and LO Baluns for Single-Ended Inputs
  • Low -3dBm to +3dBm LO Drive
  • Built-In SPDT LO Switch with 49dB LO1 to LO2 Isolation and 50ns Switching Time
  • Pin Compatible with MAX9994/MAX9996 1700MHz to 2200MHz Mixers
  • Functionally Compatible with MAX9993
  • External Current-Setting Resistors Provide Option for Operating Mixer in Reduced Power/Reduced Performance Mode
  • Lead-Free Package Available

Applications/Uses

  • 850MHz WCDMA Base Stations
  • cdmaOne™ and cdma2000® Base Stations
  • Digital and Spread-Spectrum Communication Systems
  • Fixed Broadband Wireless Access
  • GSM 850/GSM 900 2G and 2.5G EDGE Base Stations
  • iDEN® Base Stations
  • Microwave Links
  • Military Systems
  • Predistortion Receivers
  • Private Mobile Radios (PMRs)
  • Wireless Local Loop (WLL)
Parametric specs for Downconverter Mixers
# Channels 1
RF Freq. (MHz) (min) 815
RF Freq. (MHz) (max) 995
LO Frequency (MHz) (min) 960
LO Frequency (MHz) (max) 1180
IF Frequency (MHz) (min) 50
IF Frequency (MHz) (max) 250
Gain (dB) 10
Input IP3 (dBm) 23.6
Noise Figure (dB) 9.3
2RF-2LO/ 2LO-2RF (dBc) 67
VCC (V) 4.75 to 5.25
5V Supply Current (mA) 222
Footprint (mm x mm) 5.0 x 5.0
Package/Pins TQFN/20
Budgetary
Price (See Notes)
$9.06 @1k
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Simplified Block Diagram

MAX9986: Typical Application Circuit MAX9986: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX9986 evaluation kit (EV kit) simplifies the evaluation of the MAX9986 815MHz to 995MHz base-station downconversion mixer. It is fully assembled and tested at the factory. Standard 50Ω SMA connectors are included on the EV kit's input and output ports to allow quick and easy evaluation on the test bench.

This document provides a list of test equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the EV kit circuit, the circuit schematic, a bill of materials (BOM) for the kit, and artwork for each layer of the PC board.

Contact MaximDirect sales at 888-629-4642 for pricing and availability on these kits.

View Details

Features

  • Fully Assembled and Tested
  • 815MHz to 995MHz RF Frequency
  • 960MHz to 1180MHz LO Frequency
  • 50MHz to 250MHz IF Frequency
  • 10dB Conversion Gain
  • 23.6dBm IIP3
  • 9.3dB Noise Figure
  • Integrated LO Buffer
  • Switch-Selectable (SPDT), Two LO Inputs
  • -3dBm to +3dBm LO Drive
  • 49dB LO1 to LO2 Isolation
  • 50Ω SMA Connectors on Input and Output Ports
  • 4:1 Balun for Single-Ended IF Output
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    Parameters

    Parametric specs for Downconverter Mixers
    # Channels 1
    RF Freq. (MHz) (min) 815
    RF Freq. (MHz) (max) 995
    LO Frequency (MHz) (min) 960
    LO Frequency (MHz) (max) 1180
    IF Frequency (MHz) (min) 50
    IF Frequency (MHz) (max) 250
    Gain (dB) 10
    Input IP3 (dBm) 23.6
    Noise Figure (dB) 9.3
    2RF-2LO/ 2LO-2RF (dBc) 67
    VCC (V) 4.75 to 5.25
    5V Supply Current (mA) 222
    Footprint (mm x mm) 5.0 x 5.0
    Package/Pins TQFN/20
    Budgetary
    Price (See Notes)
    $9.06 @1k

    Key Features

    • 815MHz to 995MHz RF Frequency Range
    • 960MHz to 1180MHz LO Frequency Range (MAX9986)
    • 570MHz to 850MHz LO Frequency Range (MAX9984)
    • 50MHz to 250MHz IF Frequency Range
    • 10dB Conversion Gain
    • +23.6dBm Input IP3
    • +12dBm Input 1dB Compression Point
    • 9.3dB Noise Figure
    • 67dBc 2LO-2RF Spurious Rejection at PRF = -10dBm
    • Integrated LO Buffer
    • Integrated RF and LO Baluns for Single-Ended Inputs
    • Low -3dBm to +3dBm LO Drive
    • Built-In SPDT LO Switch with 49dB LO1 to LO2 Isolation and 50ns Switching Time
    • Pin Compatible with MAX9994/MAX9996 1700MHz to 2200MHz Mixers
    • Functionally Compatible with MAX9993
    • External Current-Setting Resistors Provide Option for Operating Mixer in Reduced Power/Reduced Performance Mode
    • Lead-Free Package Available

    Applications/Uses

    • 850MHz WCDMA Base Stations
    • cdmaOne™ and cdma2000® Base Stations
    • Digital and Spread-Spectrum Communication Systems
    • Fixed Broadband Wireless Access
    • GSM 850/GSM 900 2G and 2.5G EDGE Base Stations
    • iDEN® Base Stations
    • Microwave Links
    • Military Systems
    • Predistortion Receivers
    • Private Mobile Radios (PMRs)
    • Wireless Local Loop (WLL)

    Description

    The MAX9986 high-linearity downconversion mixer provides 10dB gain, +23.6dBm IIP3, and 9.3dB NF for 815MHz to 995MHz base-station receiver applications. With a 960MHz to 1180MHz LO frequency range, this particular mixer is ideal for high-side LO injection receiver architectures. Low-side LO injection is supported by the MAX9984, which is pin-for-pin and functionally compatible with the MAX9986.

    In addition to offering excellent linearity and noise performance, the MAX9986 also yields a high level of component integration. This device includes a double-balanced passive mixer core, an IF amplifier, a dual-input LO selectable switch, and an LO buffer. On-chip baluns are also integrated to allow for single-ended RF and LO inputs. The MAX9986 requires a nominal LO drive of 0dBm, and supply current is guaranteed to be below 265mA.

    The MAX9984/MAX9986 are pin compatible with the MAX9994/MAX9996 1700MHz to 2200MHz mixers, making this entire family of downconverters ideal for applications where a common PC board layout is used for both frequency bands. The MAX9986 is also functionally compatible with the MAX9993.

    The MAX9986 is available in a compact, 20-pin, thin QFN package (5mm x 5mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

    Simplified Block Diagram

    MAX9986: Typical Application Circuit MAX9986: Typical Application Circuit 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