【稳定方案】龙迅LT8918功能RGB转MIPI芯片简介

发布时间：2022-7-14 18:06 发布者：WX18312533639

关键词： LT8918 , RGB转MIPI芯片

龙迅LT8918是一颗低成本RGB转MIPI功能的视频转换芯片

芯片的功能框架图如下：

The Lontium LT8918 is a high performance MIPIDSI/CSI-2 transmitter for mobile display panel or camera application.

The TTL input of LT8918 supports both 24-bit RGB and BT656/1120 video format under either SDR or DDR sampling. The

maximum input pixel clock frequency is SDR 148.5MHz or DDR 74.25MHz for 1080P@60Hz high-end mobile display or

video capture application.

For MIPI DSI/CSI-2 output, LT8918 features a single port MIPI DSI or CSI-2 transmitter with 1 high-speed clock lane and

1~4 configurable high-speed data lanes operating at maximum 1.5Gb/s/lane, which can support a total bandwidth of up to

6Gb/s. LT8918 supports both Non-Burst and Burst DSI video data transferring, as well as Command Mode through Lane-0.

The LT8918 is fabricated in advanced CMOS process and implemented in a small outline 7.5mm x 7.5mm QFN64

package. This package is RoHS compliant and specified to operate from -40°C to +85°C.

2.1 Application

 Mobile systems

 Cellular handsets

 Digital video cameras

 Digital still cameras

 Tablet PC, Notebook PC

 Car Display and Camera System

2.2 Features

 RGB Input

 Support 24-bit RGB and BT656/BT1120 Input

 Support both SDR and DDR Data Sampling

 Programmable Rising/Falling Edge Clock Input

 Support up to 74.25MHz DDR or 148.5MHz SDR

Clock Input

 Support both 1.8V and 3.3V Input Voltage Level

 Single-Port MIPI DSI Transmitter

 Compliant with DCS1.02, D-PHY1.1 & DSI1.02

 1 Clock Lane and 1~4 Configurable Data Lanes

 80Mb/s~1.5Gb/s per Data Lane

 Resolution Up to 1080P 60Hz

 Data Lane and Polarity Swapping

 Both Non-Burst and Burst Video Mode Supported

 Command Mode through Lane-0 Supported

 Support RGB666, Loosely RGB666, RGB888,

RGB565, 16-bit YCbCr4:2:2, 24-bit YCbCr 4:2:2

Video Format

 Single-Port MIPI CSI-2 Transmitter

 Compliant with D-PHY1.1 & CSI-2 1.0

 1 Clock Lane and 1~4 Configurable Data Lanes

 80Mb/s~1.5Gb/s per Data Lane

 Resolution Up to 1080P 60Hz

 Data Lane and Polarity Swapping

 Support RGB565, RGB666, RGB888, 8-bit YUV422

Video Format

 Miscellaneous

 1.8V Single Supply Power

 Support 100KHz and 400KHz I2C slave

 Support SPI slave

 External 25MHz Crystal Reference Clock

 Temperature Range: -400

C ~ +850

 Packaged in QFN64 7.5mm x 7.5mm and BGA81

5mm x 5m

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【稳定方案】龙迅LT8918功能RGB转MIPI芯片简介

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