Maxim MAX9268吉比特多媒体串行连接方案

Maxim 公司的MAX9268是并串转换器,采用Maxim公司的吉比特多媒体串行连接(GMSL)技术. MAX9268具有LVDS系统接口,采用1.5米屏蔽双绞线对(STP)电缆数据速率可达2.5Gbps,最大时钟速率为104MHz (3路LVDS)或78MHz (4路LVDS),支持带24位色彩的WXGA (1280 × 800),主要用在高分辨率汽车导航,百万像素照相机系统和汽车后座娱乐系统.本文介绍了MAX9268主要特性,以及MAX9268评估板主要特性,电路图和所用元件列表.
Gigabit multimedia serial link deserializer with integrated full-duplex control channel reduces EMI and saves cost
The MAX9268 deserializer utilizes Maxim’s gigabit multimedia serial link (GMSL) technology. The MAX9268 deserializer features an LVDS system interface for reduced pin count and a smaller package, and pairs with any GMSL serializer to form a complete digital serial link for joint transmission of high-speed video, audio, and bidirectional control data.
The MAX9268 allows a maximum serial payload data rate of 2.5Gbps for a 15m shielded twisted-pair (STP) cable. The deserializer operates up to a maximum output clock rate of 104MHz (3-channel LVDS) or 78MHz (4-channel LVDS). This serial link supports display panels from QVGA (320 x 240) to WXGA (1280 x 800) and higher with 24-bit color.
The 3-channel mode outputs an LVDS clock, three lanes of LVDS data (21 bits), UART control signals, and one I²S audio channel consisting of three signals. The 4-channel mode outputs an LVDS clock, four lanes of LVDS data (28 bits), UART control signals, an I²S audio channel, and auxiliary control outputs. The three audio outputs form a standard I²S interface, supporting sample rates from 8kHz to 192kHz and audio word lengths of 4 to 32 bits. The embedded control channel forms a full-duplex, differential, 100kbps to 1Mbps UART link between the serializer and deserializer. An electronic control unit (ECU), or microcontroller (µC), can be located on the serializer side of the link (typical for video display), on the MAX9268 side of the link (typical for image sensing), or on b...