Clock & Timing Files

Key Points to Setting up SYSREF on LMK0482x

Timothy T — Wed, 29 Jun 2016 23:19:34 GMT

This presentation discusses SYNCing the dividers and then outputting SYSREF from LMK0482x.

Choosing Loop Bandwidth for PLLs

Timothy T — Tue, 22 May 2012 06:58:14 GMT

This PDF shows the slides from a presentation delivered discussing how to chose PLL loop bandwidth.

Minimum Required VCO Frequency (LCM Calculator) & Reduced N R Calculator Combo

Timothy T — Thu, 10 May 2012 17:26:59 GMT

The LCM Calculator calculator allows users to enter multiple desired output frequencies and determine the smallest possible VCO frequency which can be used to achieve all output frequencies with integer dividers. It also allows for simple identification of frequency combinations which produce the large VCO frequencies.

Also included in the tool is the ability to calculate the minimal R & N values to permit a PLL to lock a specified VCO frequency to a specified reference frequency. For a given VCO and reference frequency it also shows the phase detector frequency, higher phase detector frequency enable lower PLL noise in system. Also, by displaying the individual numerical factors of the VCO and reference frequencies, it is possible to manually optimize reference (or VCO) frequency to maximize phase detector. See part 3 of instructions for detailed example.

To install simply unzip to a directory and run Freq_LCM_Calc.exe.

CDCM6208 prelimiary data sheet (4/5/2012)

Fritz — Thu, 05 Apr 2012 08:00:34 GMT

This product is now available online directly on ti.com.

http://www.ti.com/product/cdcm6208

CDCE62005 Delphi Model

Fritz — Mon, 26 Mar 2012 19:57:19 GMT

CDCE72010 Termination schemes explained

Fritz — Fri, 24 Feb 2012 07:08:08 GMT

Here is a nice presentation of possible, different termination schemes of the CDCE72010 input.

Revision Control: 2/22/2012: Rev 1.0 uploaded

CDCM6208 User GUI (updated 4/10/2012)

Fritz — Thu, 19 Jan 2012 23:46:05 GMT

This project is now available online directly on www.ti.com

http://www.ti.com/product/cdcm6208

CDCM61001, CDCM61002, CDCM61004 frequency planner

Fritz — Tue, 17 Jan 2012 20:51:02 GMT

This Excel tool is a really nice to check:

(A) if the CDCM6100x can output a certain frequency

(B) what crystal frequency is necessary and how to configure the control pins

Revision Control:

01/17/2012: Rev 1.0

CDCE62002 GUI - NEW - Beta version

Fritz — Mon, 12 Sep 2011 20:41:24 GMT

update 9/21/2011: The initial bugs now seem to be taken care of - this latest beta works super-smooth on my Win-7 machine.

update 9/12/2011: You can find the beta version of the CDCE62002 GUI under the below two links. Please note that this GUI version is a test trial, and may still have errors. However, the loop filter in particular was improved, so maybe this version is helpful to you. Please let us know if you find any bugs! Much thanks! Fritz

64-bit operating system (Win-7 and XP): [View:http://e2e.ti.com/cfs-file.ashx/__key/CommunityServer-Components-UserFiles/00-00-01-01-11-Attached+Files/0880.Installer.zip]

32-bit operating system (Win-7 and XP): [View:http://e2e.ti.com/cfs-file.ashx/__key/CommunityServer-Components-UserFiles/00-00-01-01-11-Attached+Files/5722.CDCE62002_5F00_beta_5F00_rev1p19_5F00_x86.zip]

use either the x86 or x64 version depending on your processor/operating system (check under MyComputer/properties).

And the instructions would be the same as the previous versions:

1. If the user doesn’t know what OS is working on then he must right click over “My Computer” and go to properties.

2. Then when it says what version of windows is in the system if it says x64 or 64-bit version then the right Installer will be the x64.

3. When it is a x86 of 32-bit OS the version of windows will not specify anything.

Revision history:

8/12/2011: beta version uploaded

New Version of CDCE62005 GUI with Loop Filter Tool and Frequency Planner

Matt Sunna — Tue, 22 Mar 2011 22:59:36 GMT

update 9/02/2011: the version updated on 8/16/11 was working fine on a Win-7 machine, but the EVM driver didn't work, meaning the software could not communicate with the EVM. This new version offers the right driver for each platform.

64-bit operating system (both Win-7 and XP): [View:http://e2e.ti.com/cfs-file.ashx/__key/CommunityServer-Components-UserFiles/00-00-01-01-11-Attached+Files/8053.CDCE62005_5F00_x64_5F00_rename_5F00_EXE.txt]

32-bit operating system (Win-7 and XP): [View:http://e2e.ti.com/cfs-file.ashx/__key/CommunityServer-Components-UserFiles/00-00-01-01-11-Attached+Files/1234.CDCE62005_5F00_x86_5F00_rename_5F00_EXE.txt]

use either the x86 or x64 version depending on your processor/operating system (check under MyComputer/properties).

And the instructions would be the same as the previous versions:

1. If the user doesn’t know what OS is working on then he must right click over “My Computer” and go to properties.

2. Then when it says what version of windows is in the system if it says x64 or 64-bit version then the right Installer will be the x64.

3. When it is a x86 of 32-bit OS the version of windows will not specify anything.

The latest version of the CDCE62005 GUI comes with the latest integrated loop filter software and frequency planner. These tools make it quick and easy to find the optimum register settings and component values.

Revision history:

8/16/2011: this version now works for Win-7; also includes a bug fix for the frequency planner

Utilizing SSC to overcome EMI problems - TI clocks and Timers presentation

Fritz — Tue, 19 Oct 2010 05:31:38 GMT

A presentation on how to overcome EMI ultilizing SSC in particular.

uploaded:10/18/2010 by Fritz

CDCLVPxxxx PECL buffer input rise time to output jitter (additive jitter) relationship

Fritz — Thu, 09 Sep 2010 21:35:37 GMT

The CDCLVP110x family of devices requires an input rise time of equal or higher than 1.5V/ns. Sometimes this can not be provided in systems. Posted here is a test report showing the output jitter degradation when using a signal source with a slower signal rise time on the CDCLVP1204.

last update: 09/09/2010

TI Clocks Loop Filter tool

Fritz — Tue, 10 Aug 2010 17:00:00 GMT

05/29/2012 - update

03/22/2011 - Updated file with latest version of the tool

08/30/2011 - updated trail version of latest tool, now supporting both active and passive loop filter, and including Win-7. Click on link below, download, rename from .txt to .exe and execute.

http://e2e.ti.com/support/clocks/m/videos__files/212419/download.aspx

This tool allows to design a PLL loop filter. The tool can suggest RC component selection based on the PLL configuration and target performance or calculate loop filter behavior based on the RC component selection. The tool also plots loop filter gain (closed loop, open loop) and phase margin.

CDCLVP1204 HSPICE model

Fritz — Mon, 02 Aug 2010 05:24:06 GMT

CDCL1810 RGZR Dephi Thermal Model

Fritz — Tue, 29 Jun 2010 06:22:12 GMT

Delphi thermal model of CDCL1810 in RGZ package attached.