DS90C387
- Complies with OpenLDI Specification for Digital Display Interfaces
- 32.5 to 112/170MHz Clock Support for DS90C387, 40 to 112MHz Clock Support for DS90CF388
- Supports SVGA through QXGA Panel Resolutions
- Drives Long, Low Cost Cables
- Up to 5.38Gbps Bandwidth
- Pre-Emphasis Reduces Cable Loading Effects
- DC Balance Data Transmission Provided by Transmitter Reduces ISI Distortion
- Cable Deskew of +/−1 LVDS Data Bit Time (up to 80 MHz Clock Rate) of Pair-to-Pair Skew at Receiver Inputs; Intra-Pair Skew Tolerance of 300ps
- Dual Pixel Architecture Supports Interface to GUI and Timing Controller; Optional Single Pixel Transmitter Inputs Support Single Pixel GUI Interface
- Transmitter Rejects Cycle-to-Cycle Jitter
- 5V Tolerant on Data and Control Input Pins
- Programmable Transmitter Data and Control Strobe Select (Rising or Falling Edge Strobe)
- Backward Compatible Configuration Select with FPD-Link
- Optional Second LVDS Clock for Backward Compatibility w/ FPD-Link
- Support for Two Additional User-Defined Control Signals in DC Balanced Mode
- Compatible with ANSI/TIA/EIA-644-1995 LVDS Standard
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The DS90C387/DS90CF388 transmitter/receiver pair is designed to support dual pixel data transmission between Host and Flat Panel Display up to QXGA resolutions. The transmitter converts 48 bits (Dual Pixel 24-bit color) of CMOS/TTL data into 8 LVDS (Low Voltage Differential Signalling) data streams. Control signals (VSYNC, HSYNC, DE and two user-defined signals) are sent during blanking intervals. At a maximum dual pixel rate of 112MHz, LVDS data line speed is 672Mbps, providing a total throughput of 5.38Gbps (672 Megabytes per second). Two other modes are also supported. 24-bit color data (single pixel) can be clocked into the transmitter at a maximum rate of 170MHz. In this mode, the transmitter provides single-to-dual pixel conversion, and the output LVDS clock rate is 85MHz maximum. The third mode provides inter-operability with FPD-Link devices.
The LDI chipset is improved over prior generations of FPD-Link devices and offers higher bandwidth support and longer cable drive with three areas of enhancement. To increase bandwidth, the maximum pixel clock rate is increased to 112 (170) MHz and 8 serialized LVDS outputs are provided. Cable drive is enhanced with a user selectable pre-emphasis feature that provides additional output current during transitions to counteract cable loading effects. DC balancing on a cycle-to-cycle basis, is also provided to reduce ISI (Inter-Symbol Interference). With pre-emphasis and DC balancing, a low distortion eye-pattern is provided at the receiver end of the cable. A cable deskew capability has been added to deskew long cables of pair-to-pair skew of up to +/−1 LVDS data bit time (up to 80 MHz Clock Rate). These three enhancements allow cables 5+ meters in length to be driven. This chipset is an ideal means to solve EMI and cable size problems for high-resolution flat panel applications. It provides a reliable interface based on LVDS technology that delivers the bandwidth needed for high-resolution panels while maximizing bit times, and keeping clock rates low to reduce EMI and shielding requirements. For more details, please refer to .
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | DS90C387/DS90CF388 Dual Pixel LVDS Display Interface (LDI)-SVGA/QXGA 数据表 (Rev. H) | 2013年 4月 17日 | |||
应用手册 | High-Speed Layout Guidelines for Reducing EMI for LVDS SerDes Designs | 2018年 11月 9日 | ||||
技术文章 | Finding the right pixel clock frequency and throughput for an LVDS display resolut | PDF | HTML | 2018年 9月 26日 | |||
应用手册 | How to Map RGB Signals to LVDS/OpenLDI(OLDI) Displays (Rev. A) | 2018年 6月 29日 | ||||
应用手册 | AN-1032 An Introduction to FPD-Link (Rev. C) | 2017年 8月 8日 | ||||
用户指南 | LDI Demonstration Kit User Guide (LVDS Display Interface) Introduction (Rev. A) | 2014年 4月 1日 | ||||
更多文献资料 | Die D/S DS90C387 MDC +3.3V Dual Pixel Lvds Display Interface (Ldi)-Svga/Qxga | 2012年 9月 7日 | ||||
应用手册 | TFT Data Mapping for Dual Pixel LDI Application - Alternate A - Color Map | 2004年 5月 15日 | ||||
应用手册 | AN-1056 STN Application Using FPD-Link | 2004年 5月 14日 | ||||
应用手册 | AN-1085 FPD-Link PCB and Interconnect Design-In Guidelines | 2004年 5月 14日 | ||||
应用手册 | LVDS goes the distance! | 2003年 2月 17日 |
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