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SiGe High-Linearity, 1400MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity, 1400MHz to 2200MHz SiGe Downconversion Mixer for 2.5G, 3G, and 4G Base Stations

Product Details

The MAX9994 high-linearity downconversion mixer provides 8.3dB gain, +26.2dBm IIP3, and 9.7dB NF for 1400MHz to 2200MHz UMTS/WCDMA, DCS, and PCS base-station receiver applications. With a wide LO range of 1400MHz to 2000MHz, the MAX9994 can be used in either high-side or low-side LO injection architectures, depending on the RF band of interest. Higher LO applications are supported by the MAX9996, which is pin-pin and functionally compatible with the MAX9994.

In addition to offering excellent linearity and noise performance, the MAX9994 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 MAX9994 requires a nominal LO drive of 0dBm, and supply current is guaranteed to be below 235mA.

The MAX9994/MAX9996 are pin compatible with the MAX9984/MAX9986 815MHz to 995MHz mixers, making this entire family of downconverters ideal for applications where a common PC board layout is used for both frequency bands. The MAX9994 is also functionally compatible with the MAX9993.

The MAX9994 is available in a compact, 20-pin, thin QFN package (5mm x 5mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

Key Features

  • 1400MHz to 2200MHz RF Frequency Range
  • 1400MHz to 2000MHz LO Frequency Range (MAX9994)
  • 1900MHz to 2400MHz LO Frequency Range (MAX9996)
  • 40MHz to 350MHz IF Frequency Range
  • 8.3dB Conversion Gain
  • +26.2dBm Input IP3
  • +12.6dBm Input 1dB Compression Point
  • 9.7dB Noise Figure
  • 67dBc 2RF - 2LO 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 45dB LO1 to LO2 Isolation and 50ns Switching Time
  • Pin Compatible with the MAX9984/MAX9986 815MHz to 995MHz Mixers
  • Functionally Compatible with the MAX9993
  • External Current-Setting Resistors Provide Option for Operating Mixer in Reduced Power/Reduced Performance Mode

Applications/Uses

  • cdmaOne™ and cdma2000® Base Stations
  • DCS1800/PCS1900 EDGE Base Stations
  • Digital and Spread-Spectrum Communication Systems
  • Fixed Broadband Wireless Access
  • Microwave Links
  • Military Systems
  • PHS/PAS Base Stations
  • Predistortion Receivers
  • Private Mobile Radios (PMRs)
  • TD-SCDMA/TD-LTE Base Stations
  • UMTS/LTE Base Stations
  • Wireless Local Loop (WLL)
Parametric specs for Downconverter Mixers
# Channels 1
RF Freq. (MHz) (min) 1400
RF Freq. (MHz) (max) 2200
LO Frequency (MHz) (min) 1400
LO Frequency (MHz) (max) 2000
IF Frequency (MHz) (min) 40
IF Frequency (MHz) (max) 350
Gain (dB) 8.3
Input IP3 (dBm) 26.2
Noise Figure (dB) 9.7
2RF-2LO/ 2LO-2RF (dBc) 67
VCC (V) 4.75 to 5.25
5V Supply Current (mA) 206
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

MAX9994: Typical Application Circuit MAX9994: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

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

Description

The MAX9994 evaluation kit (EV kit) simplifies the evaluation of the MAX9994 UMTS, DCS, and PCS 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
  • 1700MHz to 2200MHz RF Frequency
  • 1400MHz to 2000MHz LO Frequency
  • 40MHz to 350MHz IF Frequency
  • 8.3dB Conversion Gain
  • 26.2dBm IIP3
  • 9.7dB Noise Figure
  • Integrated LO Buffer
  • Switch-Selectable (SPDT), Two LO Inputs
  • -3dBm to +3dBm LO Drive
  • 45dB 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) 1400
    RF Freq. (MHz) (max) 2200
    LO Frequency (MHz) (min) 1400
    LO Frequency (MHz) (max) 2000
    IF Frequency (MHz) (min) 40
    IF Frequency (MHz) (max) 350
    Gain (dB) 8.3
    Input IP3 (dBm) 26.2
    Noise Figure (dB) 9.7
    2RF-2LO/ 2LO-2RF (dBc) 67
    VCC (V) 4.75 to 5.25
    5V Supply Current (mA) 206
    Footprint (mm x mm) 5.0 x 5.0
    Package/Pins TQFN/20
    Budgetary
    Price (See Notes)
    $9.06 @1k

    Key Features

    • 1400MHz to 2200MHz RF Frequency Range
    • 1400MHz to 2000MHz LO Frequency Range (MAX9994)
    • 1900MHz to 2400MHz LO Frequency Range (MAX9996)
    • 40MHz to 350MHz IF Frequency Range
    • 8.3dB Conversion Gain
    • +26.2dBm Input IP3
    • +12.6dBm Input 1dB Compression Point
    • 9.7dB Noise Figure
    • 67dBc 2RF - 2LO 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 45dB LO1 to LO2 Isolation and 50ns Switching Time
    • Pin Compatible with the MAX9984/MAX9986 815MHz to 995MHz Mixers
    • Functionally Compatible with the MAX9993
    • External Current-Setting Resistors Provide Option for Operating Mixer in Reduced Power/Reduced Performance Mode

    Applications/Uses

    • cdmaOne™ and cdma2000® Base Stations
    • DCS1800/PCS1900 EDGE Base Stations
    • Digital and Spread-Spectrum Communication Systems
    • Fixed Broadband Wireless Access
    • Microwave Links
    • Military Systems
    • PHS/PAS Base Stations
    • Predistortion Receivers
    • Private Mobile Radios (PMRs)
    • TD-SCDMA/TD-LTE Base Stations
    • UMTS/LTE Base Stations
    • Wireless Local Loop (WLL)

    Description

    The MAX9994 high-linearity downconversion mixer provides 8.3dB gain, +26.2dBm IIP3, and 9.7dB NF for 1400MHz to 2200MHz UMTS/WCDMA, DCS, and PCS base-station receiver applications. With a wide LO range of 1400MHz to 2000MHz, the MAX9994 can be used in either high-side or low-side LO injection architectures, depending on the RF band of interest. Higher LO applications are supported by the MAX9996, which is pin-pin and functionally compatible with the MAX9994.

    In addition to offering excellent linearity and noise performance, the MAX9994 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 MAX9994 requires a nominal LO drive of 0dBm, and supply current is guaranteed to be below 235mA.

    The MAX9994/MAX9996 are pin compatible with the MAX9984/MAX9986 815MHz to 995MHz mixers, making this entire family of downconverters ideal for applications where a common PC board layout is used for both frequency bands. The MAX9994 is also functionally compatible with the MAX9993.

    The MAX9994 is available in a compact, 20-pin, thin QFN package (5mm x 5mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

    Simplified Block Diagram

    MAX9994: Typical Application Circuit MAX9994: 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