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MAX9234, MAX9236, MAX9238
Hot-Swappable, 21-Bit, DC-Balanced LVDS Deserializers

Hot-Swappable, Fully Integrated, Low-Jitter 3- to 21-Bit DC-Balanced LVDS Deserializer Reduces EMI


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 192kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX9234/MAX9236/MAX9238 deserialize three LVDS serial-data inputs into 21 single-ended LVCMOS/LVTTL outputs. A parallel-rate LVDS clock received with the LVDS data streams provides timing for deserialization. The outputs have a separate supply, allowing 1.8V to 5V output logic levels. All these devices are hot-swappable and allow "on-the-fly" frequency programming.

The MAX9234/MAX9236/MAX9238 feature DC balance, which allows isolation between a serializer and deserializer using AC-coupling. Each deserializer decodes data transmitted by one of the MAX9209/MAX9211/MAX9213/MAX9215 serializers.

The MAX9234 has a rising-edge output strobe. The MAX9236/MAX9238 have a falling-edge output strobe. The MAX9234/MAX9236/MAX9238 operate in DC-balanced mode only.

The MAX9234/MAX9236 operate with a parallel input clock of 8MHz to 34MHz, while the MAX9238 operates from 16MHz to 66MHz. The transition time of the single-ended outputs is increased on the low-frequency version parts (MAX9234/MAX9236) for reduced EMI. The LVDS inputs meet ISO 10605 ESD specification, ±25kV for Air-Gap Discharge and ±8kV Contact Discharge.

The MAX9234/MAX9236/MAX9238 are available in 48-pin TSSOP packages and operate over the -40°C to +85°C temperature range.

Key Features   Applications/Uses
  • DC Balance Allows AC-Coupling for Wider Input Common-Mode Voltage Range
  • On-the-Fly Frequency Programming
  • Operating Frequency Range
    • 8MHz to 34MHz (MAX9234/MAX9236)
    • 16MHz to 66MHz (MAX9238)
  • Falling-Edge Output Strobe (MAX9236/MAX9238)
  • Slower Output Transitions for Reduced EMI (MAX9234/MAX9236)
  • High-Impedance Outputs when Active-Low PWRDWN Is Low Allow Output Busing
  • 5V-Tolerant Active-Low PWRDWN Input
  • PLL Requires No External Components
  • Up to 1.386Gbps Throughput
  • Separate Output Supply Pins Allow Interface to 1.8V, 2.5V, 3.3V, and 5V Logic
  • LVDS Inputs Meet ISO 10605 ESD Requirements
  • LVDS Inputs Conform to ANSI TIA/EIA-644 LVDS Standard
  • Low-Profile, 48-Lead TSSOP Package
  • +3.3V Main Power Supply
  • -40°C to +85°C Operating Temperature Range

 
  • Automotive DVD Entertainment Systems
  • Automotive Navigation Systems
  • Digital Copiers
  • Laser Printers

    Key Specifications:  High-Speed Interconnect (Differential Signaling)
    Part Number Features Signal Type Signal Type Functions Rx Tx Data Rates
    (Mbps)
    tPD
    (ps)
    VSUPPLY
    (V)
    Price
    Rx Tx max See Notes
    MAX9234 
    DC Balanced
    Standalone Deserializer
    LVDS LVCMOS Deserializer 4 21 714 8100 3.3 $3.90 @1k
    MAX9236  714 $3.90 @1k
    MAX9238  1368 $6.10 @1k
    See All High-Speed Interconnect (Differential Signaling) (133)

    Diagram
    MAX9234, MAX9236, MAX9238: Functional Diagram
    Functional Diagram

    Application Notes
  • Application Note 3821: Skew Margin Measurement for 4-Channel (3 Data Channels Plus Clock Channel) LVDS Serializers/Deserializers - MAX9238

    Design Guides
  • Interface (PDF)
  • Communications (PDF)
  • System Timing & Control (PDF)
  • High-Speed Interconnect (PDF)
  • Displays (PDF)
  • Flat-Panel Display (PDF)
  • Automotive (PDF)

    Reliability Reports
  • Reliability Report: MAX9234.pdf AEC-MAX9234EUM_B.pdf MAX9234EUM.pdf MAX9236.pdf AEC-MAX9236EUM_B.pdf MAX9236EUM.pdf MAX9238.pdf AEC-MAX9238EUM_A.pdf MAX9238EUM.pdf
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    Software/Models
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    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: 1-14 of 14

    MAX9234 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9234EUM-D    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX9234EUM-TD    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX9234EUM+D  
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9234EUM+TD    
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9236 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9236EUM+D  
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9236EUM+TD    
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9236EUM-D    
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9236EUM-TD    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX9238 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9238EUM+    
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9238EUM+T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX9238EUM    
    Active TSSOP;48 pin;102.1 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9238EUM-T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX9238EUM-D    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX9238EUM-TD    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet

    More Information
  • New Product Press Release 2005-05-03 

    Related Products
    MAX9234, MAX9236, MAX9238 Hot-Swappable, 21-Bit, DC-Balanced LVDS Deserializers

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    Document Ref.: 19-3641; Rev 1; 2007-11-19
    This page last modified: 2009-10-06


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