Other Parts Discussed in Thread: TUSB1064
Hello TI team
1. I am config TUSB1064 2 lane DP + usb3.0 but the DP signal can only output 30Hz, Can you analyze the problem and how to solutions .
2. The signal diagram is below .
best regard
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Hello TI team
1. I am config TUSB1064 2 lane DP + usb3.0 but the DP signal can only output 30Hz, Can you analyze the problem and how to solutions .
2. The signal diagram is below .
best regard
Hi,
I would try to increase the EQ level using by TUSB1064 it could be that link training is failing at 60Hz data rate. If 2 DP lanes is used, then source needs to support DP1.4 or HBR3. Can you confirm this is the case? Can you achieve 4K60 in 4 lane mode?
Hi Malik
1. Thank you for your reply .
2. The source is support DP1.4 or HBR3.
3. According your suggestion increase the EQ level or try to 4 lane , I will update next .
Hello Malik
1. When I config the tusb1064 4 lane it can output 60Hz
2. But I adjust the register 0x10 and 0x11 from 0 to 0xff,it still can't output 60Hz , when config tusb1064 2 lane.
3. I try to config 0x18 = 0x80 AUX_SNOOP_DISABLE and adjust EQ, it still can't output 60Hz , when config tusb1064 2 lane.
Hello Malik1. I am using CY4500 make crypress to capture the pd negotiation.
2. attached is the 2lane and 4lane negotiation
Hi,
4k@60Hz bandwidth is around 17.82Gbps. You will need 4 lanes to support 4K@60Hz. Assume each lane is 5.4Gbps, 4 lanes will give you 21.6Gbps, but 2 lanes will not give you the bandwidth needed.
Thanks
David
Thanks David,Malik.
one more question, there’s some dock station use dp 2lane to convert HDMI 4k6Hz how can they achieved
HI,
Only way for it to support 4k@60Hz is to bump up the data rate across the DP lanes from 5.4G to 8.1G. Both the source and the dock station need to be able to supporting this 8.1G data rate.
Thanks
David