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LT7911UXC-国产Type-C/DP1.4转四端口MIPIDSI/CSI/LVDS输出方案介绍
龙迅自2019年以来,爆炸性推出了众多市场热销产品,简单列举:HDMI_Tx LT8618SXB,RGB/LVDS/MIPI全能转换LT9211,2020年平板必用网红料MIPI转eDP LT8911EXB,2021年车载网红料HDMI转MIPI LT6911C/LT6911UXC,在众多显示桥接应用中,龙迅皆有对应产品支持,如:RGB转MIPI LT8918,LVDS转MIPI LT8918L,LVDS转eDP LT8911EX,MIPI转2Port LVDS LT9211D,eDP转2Port MIPI(或LVDS) LT7911D,龙迅在HDMI、TypeC、DP、显示90度旋转、最大4K显示缩放、CC逻辑等众多音视频传输、显示接口技术皆有深耕,而今天重点介绍即将成为2023年度网红料LT7911UX、LT7911UXC。LT7911UX、LT7911UXC是元宇宙时代AR、VR传输必选电路!
■LT7911UX、LT7911UXC支持:
○TypeC或DP转4Port MIPI with Audio,最高8K@60Hz,4K@120Hz×2CH;
○TypeC或DP转4Port LVDS with Audio,最高4K@60Hz,2K@120Hz×2CH。
LT7911UX、LT7911UXC典型应用框图:
■LT7911系列对比表:
1、龙迅LT7911系列关键特点
支持转换
分辨率
嵌 入
缩放旋转
音频接口
封 装
应 用
LT7911D
TypeC/DP/eDP to 2Port- MIPI /LVDS with Audio
4K@60Hz
MCU
不支持
2CH I2S 1CH SPDIF
QFN64
显示桥接
LT7911UX
TypeC/DP to 4Port- MIPI/LVDS with Audio
8K@60Hz 4K@120Hz
MCU SPI_Flash LPDDR3/4
放大或缩小 1080P 90°旋转
8CH I2S 2CH SPDIF
BGA169
AR VR TypeC DP 音视频传输
LT7911UXC
TypeC/DP to 4Port- MIPI/LVDS with Audio
8K@60Hz 4K@120Hz
MCU SPI_Flash
放大或缩小 (最高4K)
8CH I2S 2CH SPDIF
BGA169
AR VR 音视频传输
1. Description
The LT7911UXC is a high performance Type-C/DP1.4 to MIPI or LVDS chip for VR/Display application.
HDCP RX as the upstream of HDCP repeater, can cooperate with HDCP TX of other chips to realize the repeater function.
For DP1.4 input, LT7911UXC can be configured as 1/2/4 lane. Adaptive equalization makes it suitable for long cable application and the maximum bandwidth is up to 32.4Gbps.
For MIPI output, LT7911UXC features configurable single-port or dual-port or quad-port MIPIDSI/CSI with 1 high-speed clock lane and 1~4 high-speed data lanes operating at maximum 2.5Gbps/lane with D-PHY, which can support a total bandwidth of up to 40Gbps for four port. Also support 5.7Gbps/lane with C-PHY, which can support a total bandwidth of up to 68.4Gbps for four port.
For LVDS output, LT7911UXC can be configured as single, dual or quad-port LVDS with 1 high-speed clock lane, and 3~5 high-speed data lanes, operating at maximum 1.2Gbps per lane, which can support a total bandwidth of up to 24Gbps. LT7911UXC supports flexible video data mapping path for 2D and 3D applications.
Two digital audio output interfaces are available, I2S and SPDIF. The I2S interface supports 8-ch LPCM and the SPDIF interface supports 2-ch LPCM or compressed audio, both at maximum 192 KHz sample rate.
The device is capable of automatic operation which is enabled by an integrated microprocessor that uses an embedded SPI flash for firmware storage. System control is also available through the configuration I2C slave interface.
LT7911UXC is fabricated in advanced CMOS process and implemented in 9mmx9mm BGA169 package.2
2. Features
• Type-C
• DP1.4 Receiver
• Four-Port MIPI DSI/CSI Transmitter
• Four-Port LVDS Transmitter
• Digital Audio Output
3. Applications
• Mobile system
• Display
• VR
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