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MAX2395
WCDMA Quasi-Direct Modulator with VGA and PA Driver


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 220kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX2395 fully monolithic quasi-direct modulator IC is designed for use in WCDMA/UMTS transmitters. The quasi-direct modulation architecture reduces system cost, component count, and board space compared to transmitters using an IF SAW filter with IF VCO and IF synthesizer blocks.

The MAX2395 includes I/Q baseband filters, an IF I/Q modulator with VGA, a fully monolithic VCO with PLL, an upconverter mixer, an RF VGA, and a power amplifier (PA) driver. The use of the quasi-direct modulator scheme ensures 5% (typ) EVM and a 30dB (min) carrier suppression. The RF VGA and IF VGA provide a nominal 90dB of output power control. No external local oscillators are required, enabling efficient implementation of variable duplex offset systems.

The PLL is programmed by loading data on the SPI™/MICROWIRE™-compatible 3-wire serial bus. The IC operates from a single +2.7V to +3.3V supply. The devices are available in space-saving 28-pin QFN and thin QFN exposed-pad packages (5mm x 5mm).

An evaluation kit is available:  MAX2395EVKIT  

NOTE: This product requires use of the following:

  • MAX2395 EVKIT Software

    Key Features   Applications/Uses
    • 5% EVM for POUT = +6dBm
    • 1920MHz to 1980MHz Operation
    • +2.7V to +3.3V Single-Supply Operation
    • +6dBm Output Power at 72mA
    • 81dB Minimum Automatic Gain-Control (AGC) Range
    • Automatic ICC Throttle Back for Optimal Power Consumption
    • No IF SAW Filter Necessary
    • On-Chip RF PLL, with Fully Monolithic VCO
    • Ultra-Low External Component Count

    		 
  		• UMTS/EDGE Phones
  		• W-TDD Phones
  		• WCDMA Phones

    Diagram
    MAX2395: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 2009: Performance of the MAX2395 PLL with 80kHz Comparison Frequency - MAX2395
  		• Application Note 2233: Block Diagram and Description of Maxim's TDD-WCDMA Transceiver Solution at 1.9GHz - MAX2395
  		• Application Note 3040: MAX2395 Output Matching to a SAW Filter for Optimum Cascaded Gain Flatness - max2395

    Evaluation Kits
  		• MAX2395EVKIT

    Design Guides
  		• Wireless (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• MAX2395 EVKIT Software

    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: 1-6 of 6

    MAX2395 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2395EGI    
    		Active QFN;28 pin;26 mm²
    Outline Drawing: 21-0091 (PDF)
    Land Pattern: 90-0278 (PDF)
    Use pkgcode/variation: G2855-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2395EGI-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX2395ETI    
    		Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0023 (PDF)
    Use pkgcode/variation: T2855-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2395ETI-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX2395ETI+  
    		Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0023 (PDF)
    Use pkgcode/variation: T2855+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2395ETI+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

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    Document Ref.: 19-2970; Rev 3; 2009-02-13
    This page last modified: 2009-10-08


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