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MAX2102, MAX2105
Direct-Conversion Tuner ICs for Digital DBS Applications


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Status
Part Number Status
MAX2102 This product is No Longer Available. See Ordering Information for recommended replacements.
MAX2105 This product is being discontinued and is subject to Last Time Buy, after which new orders can not be placed. See Ordering Information for recommended replacements.

Description
Request Full Data Sheet
The MAX2102/MAX2105* are low-cost direct-conversion tuner ICs designed for use in digital direct-broadcast satellite (DBS) television set-top box units. The direct-conversion architecture reduces system cost compared to devices with IF-based architectures.

The MAX2102/MAX2105 directly tune L-band signals to baseband using a broadband I/Q downconverter. Operating frequency range spans from at least 950MHz to 2150MHz.

The ICs include a low-noise amplifier (LNA) with automatic gain control (AGC), two downconverter mixers, an oscillator buffer with 90° quadrature generator and prescaler, and baseband amplifiers.

The MAX2102 features an AGC range of 50dB, allowing input power levels as low as -69dBm. The MAX2105 has a reduced AGC range of 41dB and accepts input power levels down to -60dBm. The reduced AGC range of the MAX2105 allows the use of a high-gain external LNA to achieve a lower system noise figure (NF).

Key Features   Applications/Uses
  • Low-Cost Bipolar Design, Lowest Cost Architecture
  • Operate from a Single +5V Supply
  • 950MHz to 2150MHz Input Frequency Range*
  • On-Chip Quadrature Generator, Dual-Modulus Prescaler (/64, /65)
  • Input Levels
    • 69dBm to -19dBm per Carrier (MAX2102)
    • -60dBm to -19dBm per Carrier (MAX2105)
  • Over 50dB AGC Control Range (MAX2102)
  • Noise Figure = 13.2dB (MAX2102); IP3 = 6.5dBm (at 1450MHz)
  • Automatic Baseband Offset Correction
  • Easy Interface to MAX1002/MAX1003 Dual ADC and Popular Baseband ICs

 

Application Notes
  • Application Note 686: QPSK Modulation Demystified - MAX2102
  • Application Note 972: CATV Minimum Loss Pad for 75Ω Measurements - MAX2102
  • Application Note 2875: Three Methods of Noise Figure Measurement - MAX2105

    Design Guides
  • Wireless (PDF)

    Reliability Reports
  • Show FIT data for:
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    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-8 of 8

    MAX2102 Free
    Sample
    Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2102CWI     N/A No Longer Available MAX2120CTI+
    SOIC(W);28 pin;192.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0109 (PDF)
    Use pkgcode/variation: W28-1*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2102CWI-T     N/A No Longer Available MAX2120CTI+


    Land Pattern: Not Available

    0°C to +70°C See data sheet
    MAX2102CWI+     N/A No Longer Available MAX2120CTI+
    SOIC(W);28 pin;192.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0109 (PDF)
    Use pkgcode/variation: W28+1*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2102CWI+T     N/A No Longer Available MAX2120CTI+
    SOIC(W);28 pin;192.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0109 (PDF)
    Use pkgcode/variation: W28+1*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2105 Free
    Sample
    Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2105CWI-T    
    Last Time Buy MAX2112


    Land Pattern: Not Available

    0°C to +70°C See data sheet
    MAX2105CWI    
    Last Time Buy MAX2112
    SOIC(W);28 pin;192.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0109 (PDF)
    Use pkgcode/variation: W28-1*
    0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2105CWI+    
    Last Time Buy
    SOIC(W);28 pin;192.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0109 (PDF)
    Use pkgcode/variation: W28+1*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2105CWI+T    
    Last Time Buy


    Land Pattern: Not Available

    0°C to +70°C See data sheet

    Notes and Comments
    • Direct-downconversion tuner IC, tunes L-band directly to baseband I and Q outputs (MAX2102)
    • -60dBm to -19dBm per carrier (MAX2105)

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    Document Ref.: 19-1256; Rev 2; 1998-10-01
    This page last modified: 2009-06-01


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