DS90UB949A-Q1:上記部品について

Hi,

Masato Minami said:

Is the signal encoded in 8B10B for this IC of your company?

Yes, DS90UB949A supports 8b/10b encoding.  please refer to device datasheet for more info. 

Masato Minami said:

What is your unique signal technology?

FPD-Link devices can consolidate video, Audio, and Control data (I2C, GPIO, etc.) over two differential pairs to simplify system design and decrease the interconnect size and weight of the application. Infotainment displays are able to connect 1080p/2K/4K touchscreen displays. HDMI, MIPI CSI-2 and DSI, OpenLDI, RGB, DVI, eDP,and more. ADAS camera and radar devices use uncompressed video, control, and power delivered at low latency over a single cable. You could transmit high-resolution, uncompressed data with low and deterministic latency across automotive and industrial systems. Also, can extend cable reach without compromising signal integrity with our high-speed SerDes devices. Increase your system performance and functionality while reducing power consumption in automotive (FPD-Link SerDes) and industrial (V3Link SerDes) camera and display applications.

Please check our portfolio of high-perfomance video transmission products to find the right solution on the following link: https://www.ti.com/interface/high-speed-serdes/overview.html

Masato Minami said:

Question 2

For example, if some control signal is sent from 949 (left below) and 948 ⇒ ACK is returned after the signal arrives at HDMI , which PIN of 948 does the ACK signal pass through?

Below is a table of GPIOs excerpted from the datasheet, does the ACK signal pass through this GPIO?

948 - SDA pin#46 and 949 - SDA pin#14 are the I2C Data Input / Output Interface. 

If a slave on the bus is addressed correctly, it Acknowledges (ACKs) the master by driving the SDA bus Low. If the address does not match a slave address of the device, it Not-acknowledges (NACKs) the master by letting SDA be pulled High. ACKs also occur on the bus when data is being transmitted. When the master is writing data, the slave ACKs after every data byte is successfully received. When the master is reading data, the master ACKs after every data byte is received to let the slave know that the host is ready to receive another data byte. When the master wants to stop reading, it NACKs after the last data byte and creates a stop condition on the bus.

Masato Minami said:

In the figure below, 949 and 948 have a 2-lane route, but is it okay to think of it as a combination of a red square and a green square? (There is no problem even if one is not used)

You can't think of these as a combination of a red and green square because those 2 FPD-Links operate separately. However, you can configure the device as Single or dual FPD-Link III outputs, so there is no problem even if one of the links is not used. Please note, Single link mode supports frequencies up to 96MHz for 24-bit video when paired with the DS90UB940-Q1/DS90UB948-Q1. In Dual Link mode, the FPD-Link III TX splits a single video stream and sends alternating pixels on two downstream links. The receiver must be a DS90UB948-Q1 or DS90UB940-Q1, capable of receiving the dualstream video. Dual link mode is capable of supporting an TMDS clock frequency of up to 170MHz, with each FPD-Link III TX port running at one-half the frequency. This allows support for full 1080p video. The secondary FPD-Link III link could be used for high-speed control.

Masato Minami said:

Is it okay to connect this FDP-Linked signal to an HDMI device as it is?

No you can't connect FPD-Link signal to HDMI directly, it's not the same format. But you can connect the HDMI to the input side of the 949 which then is converted into FPD-LinkIII and gets communicated over the differential link to the 948 and then gets converted into OpenLDI on the 948 output side. 

Masato Minami said:

Is there a lineup of serialized and deserialized ICs in MIPI and DP?

For non-NDA devices you can check the following link: https://www.ti.com/interface/high-speed-serdes/fpd-link-serdes/products.html

Filter by Input Compatibility, function, color depth, PCLK, output config, etc.

For NDA devices such as DP , eDP, higher res. MIPI DSI, etc. we do need an NDA in place which you could contact TI's marketing team for help.

Here is the marketing contact you can reach out to: TRANG NGUYEN (t-nguyen5@ti.com).

Regards,

Fadi A.