explain

DS90UB947-Q1 is a bridge device from OpenLDI to FPD-Link III, which is connected with FPD-Link IIIDS90UB940-Q1/DS90UB948-

Q1 deserializer can be used together to provide single or dual channel high-speed serial flow through cost-effective 50 Ω single ended coaxial cable or 100 Ω differential shielded twisted pair (STP) cable. It serializes OpenLDI inputs and supports video resolutions up to WUXGA and 1080p60 (24 bit color depth).

FPD-Link III interface supports video and audio data transmission and full duplex control (including I2C and SPI communication) through the same differential link. The integration of video data and control through two differential pairs can reduce the size and weight of interconnects and simplify system design. Electromagnetic interference (EMI) is reduced to a greater extent through the use of low-voltage differential signaling, data transposition, and random generation. In backward compatibility mode, the device can support up to WXGA and 720p resolution (24 bit color depth) on a single differential link.

DS90UB947-Q1 supports receiving multi-channel audio through the external I2S interface. The audio data received by the device will be encrypted and sent through the FPD-LinkIII interface, and then regenerated by the deserializer.

characteristic

• Meets AEC-Q100 standards for automotive applications

– Device temperature class 2: – 40 ° C to+105 ° C, TA

• Support clock frequency up to 170 MHz for WUXGA

(1920x1200) and 1080p60 resolution and 24 bit color depth

• Single and dual FPD Link III outputs

– Single link: up to 96MHz pixel clock

– Dual link: up to 170MHz pixel clock

• Single and dual channel OpenLDI (LVDS) receivers

– Configurable 18 bit RGB or 24 bit RGB

• High speed reverse channel, supporting up to 2Mbps GPIO

With automatic temperature and aging compensation function, it supports cables up to 15m long

• I2C (master/slave) with 1Mbps fast mode enhanced version

• SPI pass through interface

• Backward compatibility with DS90UB926Q-Q1 and DS90UB928Q-Q1

FPD Link III deserializer

application

• Automotive infotainment:

– IVI host and HMI

modular

– Rear seat entertainment system

– Digital instrument cluster

• Security and surveillance cameras