CS5801_HDMI to EDP Advantages Replacement LT6711A Solution

LT6711 is an HDMI to EDP driver IC that can enhance TMDS signal quality by performing cable or circuit board trace loss compensation. LT6711 can be configured to work under HDMI1.4b with data rates up to 3.4Gb/s, HDMI2.0 standard with a maximum data rate of 6Gb/s, and can achieve the highest resolution of 4Kx2K 60Hz or 1080P with a higher refresh rate. CS5801 is a HDMI 4K60HZ to EDP/DP 1.4 high-performance conversion solution chip. CS5801 has an HDMI2.0b input with a maximum bandwidth of up to 18Gbps. It supports a maximum resolution of 4k@60Hz. For DP1.4 output, it consists of 4 data channels and supports 1.62Gbps, 2.7Gbps, and 5.4Gbps link rates. Built-in optional SSC function can reduce EMI effects.

The CS5801's input receiver features a multi-level programmable linear equalizer that supports up to 25dB of loss compensation through inter-symbol interference (ISI). The output transmitter re-drives the received signal with multi-level programmable output swing and up to 6dB of de-emphasis.

The CS5801 also includes a built-in DDC intercept function that works in conjunction with precise frequency detection on the clock channel to automatically set the re-driver parameters.

CS5801 integrates an 8-bit OCM and SPI flash memory (stacked chips) to run the program. CS5801 also supports online software upgrades.

The basic parameters of CS5801 and LT6711A are consistent, and the HDMI signal at the input end of CS5801 can be as high as 4K60HZ, and the output end of CS5801 is compatible with DP1.4 protocol. The advantages of CS5801 over LT6711A are also in the following aspects:

1. Only one crystal is needed to generate all the timing

2. Embedded 32-bit RISC-V with SPI flash controller

3. Embedded EDID (CS5801 will respond to EDID if the end device does not have it)

The CS5801 chip has a high degree of integration, and the corresponding design of HDMI to EDP or HDMI to DP conversion solutions is more targeted. It has an internal SPI flash memory controller, which can be online FW at any time, and is compatible with more devices without changing the hardware circuit.

The main application of CS5801 replacing LT6711 solution chip:

• Mobile systems, VR/AR

• Cellular phones, PAD/tablet computers

• Digital video camera

•digital camera

CS5801 replaces LT6711A to design HDMI to EDP adapter board as shown below: