Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

why power down current shaking

Status
Not open for further replies.

wensi

Newbie level 3
Joined
Aug 17, 2005
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,309
The chip is a HDMI/DVI transmitter , one 3.3v power supply power down current should be less than 1uA, most cases it is 0.1uA , but some times the power down current shaking between 1uA and 550uA while I connect the chip with a DVI panel using a HDMI cable ,while separate the chip with the panel ,this phenomenon dissappear , connect the panel the phenomenon appear again , any one have encounted such a case before and can you give me some suggestion?

Thanks
 

gitarrelieber

Junior Member level 1
Joined
Apr 22, 2003
Messages
18
Helped
2
Reputation
4
Reaction score
0
Trophy points
1,281
Activity points
241
Probably the transceiver and the panel has different ground potential, which causes quiescent current flow.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top