Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics 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.

[SOLVED] zq calibration in DDR3

Status
Not open for further replies.

sree205

Advanced Member level 1
Joined
Mar 13, 2006
Messages
453
Helped
58
Reputation
116
Reaction score
25
Trophy points
1,308
Activity points
4,420
zq calibration

Hi all,
can somebody give me any details about ZQ calibration and why it is necessary in DDR3 specification?
 

ddr3 zq

hi sree205

i think zq calibration in ddr3 is method for improve data & cmd signal integrality.

copy from jedec:
ZQ Calibration command is used to calibrate DRAM Ron & ODT values. DDR3 SDRAM needs longer time to calibrate output driver and on-die termination circuits at initialization and relatively smaller time to perform periodic calibrations.

thats you mean, right?
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top