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Dual, SiGe, High-Linearity, 1200MHz to 2000MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity, 1200MHz to 2000MHz Dual SiGe Mixer Features Superior IP3, NF, and 2LO - 2RF Performance

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 1200MHz to 2000MHz RF Frequency Range
  • 1450MHz to 2050MHz LO Frequency Range
  • 50MHz to 500MHz IF Frequency Range
  • 8.4dB Typical Conversion Gain
  • 9.8dB Typical Noise Figure
  • +25dBm Typical Input IP3
  • +14dBm Typical Input 1dB Compression Point
  • 68dBc Typical 2LO - 2RF Spurious Rejection at PRF = -10dBm
  • Dual Channels Ideal for Diversity Receiver Applications
  • 47dB Typical Channel-to-Channel Isolation
  • Low -6dBm to +3dBm LO Drive
  • Integrated LO Buffer
  • Internal RF and LO Baluns for Single-Ended Inputs
  • Built-In SPDT LO Switch with 48dB LO-to-LO Isolation and 50ns Switching Time
  • Pin Compatible with the MAX9985/MAX9995/MAX19985A/MAX19993/MAX19995/MAX19995A Series of 700MHz to 2200MHz Mixers
  • Pin Similar to the MAX19997A/MAX19999 Series of 1850MHz to 4000MHz Mixers
  • Single 5.0V or 3.3V Supply
  • External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode

Applications/Uses

  • cdma2000® Base Stations
  • Fixed Broadband Wireless Access
  • GSM/EDGE Base Stations
  • Military Systems
  • Private Mobile Radios
  • TD-SCDMA Base Stations
  • WCDMA/LTE Base Stations
  • Wireless Local Loop

Description

The MAX19994A dual-channel downconverter is designed to provide 8.4dB of conversion gain, +25dBm input IP3, +14dBm 1dB input compression point, and a noise figure of 9.8dB for 1200MHz to 2000MHz diversity receiver applications. With an optimized LO frequency range of 1450MHz to 2050MHz, this mixer supports both high- and low-side LO injection architectures for the 1200MHz to 1700MHz and 1700MHz to 2000MHz RF bands, respectively.

In addition to offering excellent linearity and noise performance, the device also yields a high level of component integration. This device includes two double-balanced passive mixer cores, two LO buffers, a dual-input LO selectable switch, and a pair of differential IF output amplifiers. Integrated on-chip baluns allow for single-ended RF and LO inputs. The MAX19994A requires a nominal LO drive of 0dBm and a typical supply current of 330mA at VCC = 5.0V, or 264mA at VCC = 3.3V.

The MAX19994A is pin compatible with the MAX9985/MAX9995/MAX19985A/MAX19993/MAX19995/MAX19995A series of 700MHz to 2500MHz mixers and pin similar with the MAX19997A/MAX19999 series of 1850MHz to 4000MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands.

The device is available in a 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC = -40°C to +85°C.

Simplified Block Diagram

MAX19994A: Typical Application Circuit MAX19994A: 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.