SiGe, High-Linearity, 1600MHz to 3900MHz Upconversion/Downconversion Mixer with LO Buffer

Industry's Highest Performing, Fully Integrated SiGe Passive Mixer, Featuring Superior IP3, 2LO - 2RF and LO ± 2IF Performance

Please check latest availability status for a specific part variant.


The MAX2042A single, high-linearity upconversion/downconversion mixer provides up to +33dBm input IP3, 7.25dB noise figure, and 7.2dB conversion loss for 1600MHz to 3900MHz GSM/EDGE, CDMA, TD-SCDMA, WCDMA, LTE, TD-LTE, WiMAX™, and MMDS wireless infrastructure applications. With an ultra-wide 1300MHz to 4000MHz LO frequency range, the IC can be used in either low-side or high-side LO injection architectures for virtually all 1.7GHz to 3.5GHz applications (for a 2.5GHz variant tuned specifically for low-side LO injection, refer to the MAX2042).

In addition to offering excellent linearity and noise performance, the IC also yields a high level of component integration. This device includes a double-balanced passive mixer core, an LO buffer, and on-chip baluns that allow for single-ended RF and LO inputs. The IC requires a nominal LO drive of 0dBm, and supply current is typically 140mA at VCC = 5.0V or 122mA at VCC = 3.3V.

The MAX2042A is pin compatible with the MAX2042 2000MHz to 3000MHz mixer. The MAX2042A is also pin similar with the MAX2029/MAX2031/MAX2033 650MHz to 1550MHz mixers, the MAX2039/MAX2041 1700MHz to 3000MHz mixers, and the MAX2044 2300MHz to 4000MHz mixer, making the entire family of upconverters/downconverters ideal for applications where a common PCB layout is used for multiple frequency bands.

The MAX2042A is available in a compact, 20-pin TQFN package (5mm x 5mm) with an exposed pad. Electrical performance is guaranteed over the extended TC = -40°C to +85°C temperature range.
MAX2042A: Typical Application Circuit MAX2042A: Typical Application Circuit Enlarge+

Key Features

  • Wide-Band Coverage
    • 1600MHz to 3900MHz RF Frequency Range
    • 1300MHz to 4000MHz LO Frequency Range
    • 50MHz to 500MHz IF Frequency Range
  • 7.2dB Conversion Loss
  • 7.25dB Noise Figure
  • High Linearity
    • +33dBm Input IP3
    • +21.7dBm Input 1dB Compression Point
    • 72dBc Typical 2LO - 2RF Spurious Rejection at PRF = -10dBm
  • Simple PCB Layout
    • Integrated LO Buffer
    • Integrated LO and RF Baluns for Single-Ended Inputs
  • Low -6dBm to +3dBm LO Drive
  • Pin Compatible with the MAX2042 2000MHz to 3000MHz Mixer
  • Pin-Similar with the MAX2029/MAX2031/MAX2033 650MHz to 1550MHz Mixers, MAX2039/MAX2041 1700MHz to 3000MHz Mixers, and MAX2044 2300MHz to 4000MHz Mixer
  • Single +5.0V or +3.3V Supply
  • External Current-Setting Resistor Provides Option for Operating Device in Reduced-Power/Reduced-Performance Mode


  • 1.8GHz/1.9GHz GSM/EDGE/CDMA Base Stations
  • 2.1GHz WCDMA/LTE Base Stations
  • 2.3GHz TD-SCDMA/TD-LTE Base Stations
  • 2.5GHz WiMAX and LTE Base Stations
  • 2.7GHz MMDS Base Stations
  • 3.5GHz WiMAX and LTE Base Stations
  • Fixed Broadband Wireless Access
  • Military Systems
  • Private Mobile Radios
  • Wireless Local Loop
Part NumberChannelsRF Freq.
RF Freq.
LO Freq.
LO Freq.
IF Freq.
IF Freq.
Input IP3
Noise Figure
2RF-2LO/ 2LO-2RF
3.3V Supply Current
5V Supply Current
(mm x mm)
minmaxminmaxminmaxSee Notes
MAX2042A 1160039001300400050500-7.2337.25723.0 to 5.251221405.0 x 5.0
$7.14 @1k
See All Downconverter Mixers (30)

Part NumberGain
Input IP3
LO +/-2IF
LO +/-3IF
LO Leakage at RF
Output Noise Floor
MAX2042A -7.3326172-29-163
See All Upconverter Mixers (13)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs

Quality and Environmental Data

Product Reliability Reports: MAX2042A.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


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