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Maxim > Products > [Optoelectronics]  [Interface and Interconnect]  [LED Lighting and LCD Display ICs]  [Automotive] 
MAX9242, MAX9244, MAX9246, MAX9254
21-Bit Deserializers with Programmable Spread Spectrum and DC Balance

Fully Integrated Deserializer with Spread Spectrum for EMI Reduction in Digital Video Applications


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 256kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX9242/MAX9244/MAX9246/MAX9254 deserialize three LVDS serial-data inputs into 21 single-ended LVCMOS/LVTTL outputs. A separate parallel-rate LVDS clock provides the timing for deserialization. The MAX9242/MAX9244/MAX9246/MAX9254 feature spread-spectrum capability, allowing the output data and clock frequency to spread over a specified range to reduce EMI. The single-ended data and clock outputs are programmable for a frequency spread of ±2%, ±4%, or no spread. The spread-spectrum function is also available when the MAX9242/MAX9244/MAX9246/MAX9254 operate in non-DC-balanced mode. The modulation rate of the spread is 32kHz for a 33MHz LVDS clock input and scales linearly with frequency. The single-ended outputs have a separate supply, allowing +1.8V to +5V output logic levels.

The MAX9254 features high output drive current for both data and clock outputs for faster transition times in the presence of heavy capacitive loads.

The MAX9242/MAX9244/MAX9246/MAX9254 feature programmable DC balance, allowing isolation between a serializer and deserializer using AC-coupling. The MAX9242/MAX9244/MAX9246/MAX9254 operate with the MAX9209/MAX9213 serializers and are available with a rising-edge strobe (MAX9242) or falling-edge strobe (MAX9244/MAX9246/MAX9254). The LVDS inputs meet ISO 10605 ESD specifications with ±30kV Air-Gap Discharge and ±6kV Contact Discharge ratings.

An evaluation kit is available:  MAX9209EVKIT, MAX9244EVKIT  

Key Features   Applications/Uses
  • Programmable ±4%, ±2%, or OFF Spread-Spectrum Output for Reduced EMI
  • Programmable DC-Balanced or Non-DC-Balanced Modes
  • DC Balance Allows AC-Coupling for Wider Input Common-Mode Voltage Range
  • Spread Spectrum Operates in DC-Balanced or Non-DC-Balanced Mode
  • High Output Drive (MAX9254)
  • π/4 Deskew by Oversampling (MAX9242/MAX9244/MAX9254)
  • 16MHz-to-34MHz (DC-Balanced) and 20MHz-to-40MHz (Non-DC-Balanced) Operation (MAX9242/MAX9244/MAX9254)
  • 6MHz-to-18MHz (DC-Balanced) and 8MHz-to-20MHz (Non-DC-Balanced) Operation (MAX9246)
  • Rising-Edge (MAX9242) or Falling-Edge (MAX9244/MAX9246/MAX9254) Output Strobe
  • High-Impedance Outputs when Active-Low PWRDWN is Low Allow Output Busing
  • Separate Output Supply Allows Interface to +1.8V, +2.5V, +3.3V, and +5V Logic
  • LVDS Inputs Meet ISO 10605 ESD Protection at ±30kV Air-Gap Discharge and ±6kV Contact Discharge
  • LVDS Inputs Meet IEC 61000-4-2 Level 4 ESD Protection at ±15kV Air-Gap Discharge and ±8kV Contact Discharge
  • LVDS Inputs Conform to ANSI TIA/EIA-644 Standard
  • +3.3V Main Power Supply

 
  		• 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)    		 VSUPPLY
    (V)    		 Price
    Rx Tx See Notes
    MAX9242 
    DC Balanced
    Programmable DC-Balance
    Programmable Spread Spectrum
    Standalone Deserializer
    		 LVDS LVCMOS Deserializer 4 21 840 3.3 $4.26 @1k
    MAX9244  840 $4.26 @1k
    MAX9246  420 $4.26 @1k
    MAX9254  840 $4.62 @1k
    See All High-Speed Interconnect (Differential Signaling) (132)

    Diagram
    MAX9242, MAX9244, MAX9246, MAX9254: Functional Diagram
    Functional Diagram

    Application Notes
  		• Application Note 3821: Skew Margin Measurement for 4-Channel (3 Data Channels Plus Clock Channel) LVDS Serializers/Deserializers - MAX9242, MAX9244, MAX9246
  		• Application Note 4007: Robust, Fail-Safe Biasing Circuit for AC-Coupled Multidrop LVDS Bus - MAX9242, MAX9244, MAX9246, MAX9254
  		• Application Note 4058: Measuring Skew Margin on 4-Channel Deserializers - MAX9242, MAX9244, MAX9246, MAX9254

    Evaluation Kits
  		• MAX9209EVKIT, MAX9244EVKIT

    Design Guides
  		• High-Speed Interconnect (PDF)

    Reliability Reports
  		• Reliability Report: MAX9242.pdf MAX9244.pdf AEC-MAX9244EUM_K.pdf MAX9244EUM.pdf
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• MAX9242 IBIS Model

    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: 1-26 of 26

    MAX9242 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9242GUM+D  
    		Active TSSOP;48 pin;102 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    		-40°C to +105°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9242GUM+TD    
    		Active TSSOP;48 pin;102 mm²
    Outline Drawing: 21-0155 (PDF)
    Land Pattern: 90-0124 (PDF)
    Use pkgcode/variation: U48+1*
    		-40°C to +105°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9242EUM-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9242EUM    
    		Active TSSOP;48 pin;102 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
    MAX9242EUM-D  
    		Active TSSOP;48 pin;102 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
    MAX9242EUM-TD    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9244 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9244EUM+D  
    		Active TSSOP;48 pin;102 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
    MAX9244EUM+TD    
    		Active TSSOP;48 pin;102 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
    MAX9244GUM+D    
    		Active

    Land Pattern: Not Available

    		-40°C to +105°C See data sheet
    MAX9244GUM+TD    
    		Active

    Land Pattern: Not Available

    		-40°C to +105°C See data sheet
    MAX9244EUM-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9244EUM    
    		Active TSSOP;48 pin;102 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
    MAX9244EUM-D  
    		Active TSSOP;48 pin;102 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
    MAX9244EUM-TD    
    		Active TSSOP;48 pin;102 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
    MAX9246 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9246EUM+D  
    		Active TSSOP;48 pin;102 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
    MAX9246EUM+TD    
    		Active TSSOP;48 pin;102 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
    MAX9246GUM+D    
    		Active

    Land Pattern: Not Available

    		-40°C to +105°C See data sheet
    MAX9246GUM+TD    
    		Active

    Land Pattern: Not Available

    		-40°C to +105°C See data sheet
    MAX9246EUM-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9246EUM    
    		Active TSSOP;48 pin;102 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
    MAX9246EUM-D  
    		Active TSSOP;48 pin;102 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
    MAX9246EUM-TD    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9254 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9254EUM+TD    
    		Active TSSOP;48 pin;102 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
    MAX9254EUM+D  
    		Active TSSOP;48 pin;102 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
    MAX9254EUM+  
    		Active TSSOP;48 pin;102 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
    MAX9254EUM+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    More Information
  		• New Product Press Release 2006-11-16  2006-02-09 
  		• Product Ad: Download

    Related Products
    MAX9209, MAX9213 Programmable DC-Balanced 21-Bit Serializers
    MAX9234, MAX9236, MAX9238 Hot-Swappable, 21-Bit, DC-Balanced LVDS Deserializers
    MAX9210, MAX9214, MAX9220, MAX9222 Programmable DC-Balance 21-Bit Deserializers

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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
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     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
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    Document Ref.: 19-3954; Rev 3; 2009-03-02
    This page last modified: 2009-03-02


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