Part Number: CDCDB803 I would like to use the CDCDB803 in an application without a micro-controller.
Will pulling CKPWRGN_PD# high, to VDDR, be sufficient for the part to work?
All OE pins will be tied to ground.
Johann,
Sorry for the delay due to the US Holiday. After looking into your setup more, it would be better to use a single LMKDB1120 with 20 outputs and leaving 4 outputs floating instead of the two CDCDB803. The drawbacks of using two CDCB803s is that…
Part Number: CDCDB803 Other Parts Discussed in Thread: CDCDB800 , CDCDB400 If not using SMBUS, can the CKPWRGD_PD# pin be left no connect (and pulled low via 180K pulldown)? Or should it be pulled high?
The pin configuration section states "If unused, the…
Part Number: CDCDB803 The data sheet uses the phrases "Typically connected directly to PCIe differential clock inputs", and "integrates a large amount of external passive components".
I interpret this to mean this to mean the typical…
Part Number: CDCDB803 Hi,
I have the below question about cdcdb803 .
1. How should the circuit of the CLKIN pin be configured when a 3.3V level cmos single-ended signal is used as an input?
2. How should the circuit of the CK0~CK7 output pins be configured…
Part Number: CDCDB803 Hey team,
Just a few questions regarding the 1:8 clock buffer!
What is the common mode for clock input?
If AC coupled, does it need to be biased?
Does clock input have internal termination or not?
Thanks for your help,
Came…
Part Number: CDCDB803 Other Parts Discussed in Thread: CDCDB800 , Hi Team,
I check the D/S between CDCDB800 and CDCDB803, the major difference I find is that CDCDB803 has selectable SMBus addresses function. I'm quite curious about the usage of this SMBus…
Hello Michel,
You are correct, the pin should not be left no connect. Instead, please pull it high externally. More info on this E2Es as well:
https://e2e.ti.com/support/clock-timing-group/clock-and-timing/f/clock-timing-forum/1262670/cdcdb803-ckpwrgd_pd…
Part Number: CDCDB800EVM Other Parts Discussed in Thread: CDCDB800 , CDCDB803 , Hi Team,
Customer is quite interested in our CDCDB800 and CDCDB803. They want the PCB design file of CDCDB800EVM as reference. Could you pls kindly update those info to us? You…
