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Clocks Forum Discussions

Clocks Forum Discussions

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Anonymous
Clocks
Tips to minimize output-output skew are as follows: 1. Keep same length transmission lines at output. 2. Allow only one frequency output simultane... Show More
Anonymous
Clocks
The goal of any frequency synthesizer is to generate a desired output frequency based on a given input reference frequency.  However, this relationshi... Show More
Anonymous
Clocks
Making a choice to go for ZDB (Zero Delay Buffer) or NZDB (Non-Zero Delay Buffer) is fairly dependent on your application requirements.     With ZDB, ... Show More
Anonymous
Clocks
AVCMOS name/design came in from one of the companies Cypress acquired, IMI. It is another name for variable output impedance (VOI), or sometimes calle... Show More
Anonymous
Clocks
The output impedance of Cypress Zero Delay Buffers is between 20-30 ohm, unless otherwise specified in the datasheets. So its recommended to use a 20-... Show More
Anonymous
Clocks
Tracking skew can be defined as the deviation of the output of the PLL from its input. We can expect the feedback signal to be stable as any variatio... Show More
Anonymous
Clocks
The jitter transfer characteristic is that of second order low-pass filter with the -3dB point at approximately 1MHz-3MHz depending on its internal co... Show More
Anonymous
Clocks
Time Unit (tU) is adjustment phase granularity. In RoboClock family, the CY7B993V and CY7B994V have it ranging from 0.625ns to 1.25ns. The CY7B991 and... Show More
Anonymous
Clocks
The CyClocksRT uses a proprietary algorithm to optimize the charge pump value. The table 9 in the datasheet will give you guaranteed PLL stability, bu... Show More
Anonymous
Clocks
As can be seen VOH and VOL specifications for programmable clocks are not specified. In the Electrical Characteristics table of CY22393, for example, ... Show More
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