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MAX9994
SiGe High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity, 1700MHz to 2200MHz SiGe Downconversion Mixer for 2.5G and 3G Base Stations


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Description
FULL DATA SHEET (PDF, 556kB)
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The MAX9994 high-linearity downconversion mixer provides 8.3dB gain, +26.2dBm IIP3, and 9.7dB NF for 1700MHz to 2200MHz UMTS/WCDMA, DCS, and PCS base-station receiver applications. With a 1400MHz to 2000MHz LO frequency range, this particular mixer is ideal for low-side LO injection receiver architectures. High-side LO injection is supported by the MAX9996, which is pin-for-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 doublebalanced passive mixer core, an IF amplifier, a dualinput 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 paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

Key Features   Applications/Uses
  • 1700MHz 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 MAX9984/MAX9986 815MHz to 995MHz Mixers
  • Functionally Compatible with MAX9993
  • External Current-Setting Resistors Provide Option for Operating Mixer in Reduced Power/Reduced Performance Mode
  • Lead-Free Package Available

     
  • 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)
  • UMTS/WCDMA Base Stations
  • Wireless Local Loop (WLL)

    Key Specifications:   Downconverter Mixers
    Part Number Solutions Applications Frequency Range (MHz) Gain (dB) Input IP3 (dBm) Noise Figure (dB) Supply Current (mA) Footprint (mm x mm) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX9994  1800MHz
    1900MHz
    2.4GHz
    2200MHz
    Basestations
    Cellular
    WLL
    CDMA
    Cellular
    GSM
    TDMA
    UMTS/WCDMA
    WLAN
    WLL
    cdma2000
    cdmaOne
    1400 to 2000
    1700 to 2200
    40 to 350
    8.3 26.2 9.7 206 5.0 x 5.0 Yes THIN QFN/20 26 $6.90 @ 1k
    See All Downconverter Mixers (16)
    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 prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX9994: Typical Application Circuit
    Typical Application Circuit

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    Document Ref.: 19-3435; Rev 0; 2004-10-27
    This page last modified: 2008-07-10



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