SNLS401C February   2012  – September 2018 DS90C187

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Typical Application
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     DS90C187 Pin Descriptions — Serializer
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Recommended Input Characteristics
    7. 7.7 Switching Characteristics
    8. 7.8 AC Timing Diagrams
    9. 7.9 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Device Functional Modes
      1. 8.3.1  Device Configuration
      2. 8.3.2  Single Pixel Input / Single Pixel Output
      3. 8.3.3  Single Pixel Input / Dual Pixel Output
      4. 8.3.4  Dual Pixel Input / Dual Pixel Output
      5. 8.3.5  Pixel Clock Edge Select (RFB)
      6. 8.3.6  Power Management
      7. 8.3.7  Sleep Mode (PDB)
      8. 8.3.8  LVDS Outputs
      9. 8.3.9  18 bit / 24 bit Color Mode (18B)
      10. 8.3.10 LVCMOS Inputs
    4. 8.4 Programming
      1. 8.4.1 LVDS Interface / TFT Color Data Recommended Mapping
        1. 8.4.1.1 Color Mapping Information
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 LVDS Interconnect Guidelines
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Up Sequence
    2. 10.2 Power Supply Filtering
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The DS90C187 is a low power Serializer for portable battery powered that reduces the size of the RGB interface between the host GPU and the Display.

The DS90C187Serializer is designed to support dual pixel data transmission between a Host and a Flat Panel Display at resolutions of up to QXGA (2048x1536) at 60 Hz. The transmitter converts up to 48 bits (Dual Pixel 24-bit color) of 1.8-V LVCMOS data into two channels of 4 data + clock (4D+C) reduced width interface LVDS compatible data streams.

DS90C187 supports 3 modes of operation.

  • In single pixel mode in/out mode, the device can drive up to SXGA+ (1400x1050) at 60 Hz. In this mode, the device converts one bank of 24-bit RGB data to a one channel 4D+C LVDS data stream.
  • In single pixel in / dual pixel out mode, the device can drive up to WUXGA+ (1920x1440) at 60 Hz. In this configuration, the device provides single-to-dual pixel conversion and converts one bank of 24-bit RGB data into two channels of 4D+C LVDS streams at half the pixel clock rate.

In dual pixel in / dual pixel out mode, the device can drive up to QXGA 2048x1536 at 60Hz or up to QSXGA 2560x2048 at 30Hz. In this mode, the device converts 2 channels of 24 bit RGB data into 2 channels of 4D+C LVDS streams. For all the modes, the device supports 18bpp and 24bpp color.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DS90C187 VQFN-MR (92) 7.00 mm × 7.00 mm
  1. For all available packages, see the order addendum at the end of the data sheet.