National Semiconductor | High-performance Analog

 

 DS90C385A   

LVDS Transmitter Flat Panel Display 85MHz
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Features
  • Pin-to-pin compatible to DS90C383, DS90C383A and DS90C385 .
  • No special start-up sequence required between clock/data and /PD pins. Input signals (clock and data) can be applied either before or after the device is powered.
  • Support Spread Spectrum Clocking up to 100kHz frequency modulation & deviations of ±2.5% center spread or -5% down spread.
  • "Input Clock Detection" feature will pull all LVDS pairs to logic low when input clock is missing and when /PD pin is logic high.
  • 18 to 87.5 MHz shift clock support
  • Tx power consumption < 147 mW (typ) @ 87.5 MHz Grayscale
  • Tx Power-down mode < 60 µW (typ)
  • Supports VGA, SVGA, XGA, SXGA(dual pixel), SXGA+(dual pixel), UXGA(dual pixel).
  • Narrow bus reduces cable size and cost
  • Up to 2.45 Gbps throughput
  • Up to 306.25Megabytes/sec bandwidth
  • 345 mV (typ) swing LVDS devices for low EMI
  • PLL requires no external components
  • Compliant to TIA/EIA-644 LVDS standard
  • Low profile 56-lead TSSOP package
  • Description

    The DS90C385A is a pin to pin compatible replacement for DS90C383, DS90C383A and DS90C385. The DS90C385A has additional features and improvements making it an ideal replacement for DS90C383, DS90C383A and DS90C385. family of LVDS Transmitters.

    The DS90C385A transmitter converts 28 bits of LVCMOS/LVTTL data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over the fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 87.5 MHz, 24 bits of RGB data and 3 bits of LCD timing and control data (FPLINE, FPFRAME, DRDY) are transmitted at a rate of 612.5Mbps per LVDS data channel. Using a 87.5 MHz clock, the data throughput is 306.25Mbytes/sec. This transmitter can be programmed for Rising edge strobe or Falling edge strobe through a dedicated pin. A Rising edge or Falling edge strobe transmitter will interoperate with a Falling edge strobe FPDLink Receiver without any translation logic.

    This chipset is an ideal means to solve EMI and cable size problems associated with wide, high-speed TTL interfaces with added Spread Spectrum Clocking support.

    Also Recommended
    DS90CF386FPD-Link 24-bit Receiver



    Typical Application
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    Block Diagram
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    Parameters / ValuesDS90C385A DS90CF386
    FunctionTransmitter Receiver
    Color Depth24 bpp 24 bpp
    Pixel Clock Max85 MHz 85 MHz
    Pixel Clock Min20 MHz 20 MHz
    Input CompatibilityLVCMOS
    Output CompatibilityLVDS LVCMOS
    Total Throughput2380 Mbps 2380 Mbps
    Payload/Channel595 Mbps 595 Mbps
    Supply Voltage3.3 Volt 3.3 Volt
    Temperature Min-10 deg C -10 deg C
    Temperature Max70 deg C 70 deg C
    Sensing & ImagingYes Yes
    DisplayTypeFPD FPD
    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    DS90C385AMT/NOPB


    RoHS Status


    TSSOP
    Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide172
    DIGI-KEYWorldwide225
    FARNELLEurope and Asia257
    MOUSERWorldwide378
    NEWARKAmericas102
    RS COMPONENTSWorldwide31
    TAYLORAmericas3817
    $2.00 each at 1K+ pcsrail
    of
    34
    DS90C385AMTX/NOPB

    DS90C385AMTX

    RoHS Status


    TSSOP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AITGAsia Pacific1001
    ARROWWorldwide1000
    AVNET-EMWorldwide5000
    DIGI-KEYWorldwide0
    MOUSERWorldwide1000
    RSL MICROAsia Pacific20000
    TAYLORAmericas5118
    $2.00 each at 1K+ pcsreel
    of
    1000

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DS90C385A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DS90C385A is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    FLINK3V8BT-85/NOPB

    Evaluation Kit for FPD-Link Family of Serializer and Deserializer LVDS DevicesPreliminary
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide1
    DIGI-KEYWorldwide0
    MOUSERWorldwide2
    $500.00 each1

    Description:

    FPD-Link evaluation kit contains a Transmitter (Tx) board, a Receiver (Rx) board along with interfacing cables. This kit will demonstrate the chipsets interfacing from test equipment or a graphics controller using Low Voltage Differential Signaling (LVDS) to a receiver board.

    The Transmitter board accepts LVTTL/LVCMOS RGB signals from the graphics controller along with the clock signal. The LVDS Transmitter converts the LVTTL/LVCMOS parallel lines into four serialized LVDS data pairs plus a LVDS clock. The serial data streams toggle at 3.5 times the clock rate.

    The Receiver board accepts the LVDS serialized data streams plus clock and converts the data back into parallel LVTTL/LVCMOS RGB signals and clock for the panel timing controller.

    Contents:

    What the user needs to provide:

    The user needs to provide the proper RGB inputs and clock to the transmitter and also provide a proper interface from the receiver output to the panel timing controller or test equipment. A cable conversion board or harness scramble may be necessary depending on type of cable/connector interface used. A power down feature is also provided that reduces current draw when the link is not required.




    National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

    Lead Free product status is available through the search tool located here

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    DS90C385AMT/NOPB

    222.11
    223
    TSSOP562260DetailN/AN/A
    NSUZXYTTE#
    DS90C385AMT
    DS90C385AMTX/NOPB

    DS90C385AMTX
    222.11
    223
    TSSOP562
    2
    260
    235
    DetailN/AN/A
    NSUZXYTTE#
    DS90C385AMT

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DS90C385A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DS90C385A is located at RoHS Status.

    Design Tools
    TitleSizeDate
    "Evaluation Kit for FPD-Link 20-85MHz 3.3V, 24 bit"  

    CAD Symbols and Models
    N/A
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    DS90C385AMTCMOS70213010015840003449464325
    DS90C385AMTXCMOS70213010015840003449464325

    Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

    For more information on Reliability Metrics, please click here.


    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DS90C385A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DS90C385A is located at RoHS Status.

    [Information as of 9-Feb-2012]