MIPI转换芯片转接IC ZA7783A：MIPI DSI转RGB/LVDS芯片

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于 2017-03-24 10:07:47 发布 · 6k 阅读

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#ZA7783 #MIPI转RGB #MIPI转LVDS #转接IC #转接芯片

本文详细介绍了MIPI转换芯片ZA7783A，该芯片作为MIPI DSI到RGB或LVDS的转接IC，具备I2C Slave ID为0x37。内容涵盖其功能模块图和管脚配置，是MIPI显示接口转换的重要解决方案。

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1 Overview
ZA7783 is a bridge chip which supports three kinds of display interfaces:
 MIPI DSI RX Interface (1 Clock Lane + 4 Data Lanes)
 LVDS TX Interface (1 Clock Lane + 4 Data Lanes)
 MIPI DPI TX/RX Interface (PCLK + RGB888 + VSYNC + HSYNC +DATAEN)
The chip bridges these display interfaces in three working modes:
 MODE1: MIPI DSI RX => LVDS TX
 MODE2: MIPI DSI RX => DPI TX
 MODE3: DPI RX => LVDS TX
Besides, there is also an I2C control interface (XCLK + I2C_SCL + I2C_SDA) for the host chip (AP or BB) to access ZA7783’s software registers.Analog IPs of ZA7783 are supplied by 3.3V voltage (typical). For Digital IOs, the host interface (XCLK + I2C_SCL + I2C_SDA) is supplied by DVDD18 (PIN32),while the DPI interface (PCLK + RGB888 + VSYNC + HSYNC + DATAEN) is supplied by DVDD33 (PIN45 and PIN59). Thus, ZA7783 is able to bridge AP or BB with 1.8