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Using part number CY7B992-7JI in an application with datasheet environment variables of F=80, C=50 and N=8, occasionally supply current values are observed in excess of the estimated 272mA max . As such, is 300mA a re... We find Cypress Clock Generaotor.Input differential signal (161.13Mhz),Output single-end signal (25Mhz), Please help provide Cypress products (Part number) for package SOP8/SOP16 ? Because instead of I... Does Cypress have a matrix matching products to partner devices? Many products are designed for a specific application - showing that application, or at least the clock distribution portion, will help others c... Find the clock basics covered in this book in various chapters. I find this to be equivalent to what one can call as Cypress’s Bible to Clocks and Buffers! Post your questions here! The authors themselves might ... Check out the different devices in the new High Performance Buffer (HPB) family with ultra low-jitter non-PLL clock fanout buffers that delivers up to 10 high-frequency (up to 1.5GHz) differential outputs (LVPECL... Always look and go for Spread Aware Clock Buffers for signal distribution when you want Spread Spectrum signal to pass as they have larger close loop bandwidth. Normal Clock Buffers will filter the spread spectrum sig... When you want fair comparisons made while looking at the cycle to cycle jitter numbers, there are few points to remember as follows: &... Ferrite beads are used in power supply filtering as they reduce the injection of clock noise into the main VDD supply. At the same time they also increase ripple in Cypress clock devices. It would also filter the nece... 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 CY7B992 have it ranging from 0.7ns to 1.5ns. The selectable skew i... The jitter transfer characteristic is that of second order low-pass filter with the -3dB point at approximately 1MHz-3MHz depending on its internal configuration (also called close loop bandwidth). This means that if ... 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 variations there itself can cause instability with the locking and have t... 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 20-30 ohm series resistor to match a 50 ohm transmission line. Since t... AVCMOS name/design came in from one of the companies Cypress acquired, IMI. It is another name for variable output impedance (VOI), or sometimes called variable slew rate (VSR). It is a type of output buffer that has ... 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, we have a PLL inside that gives zero delay between ... Tips to minimize output-output skew are as follows: 1. Keep same length transmission lines at output. 2. Allow only one frequency output simultaneously. 3. Use same Vdd on all output buffers. 4. Termin... Even if there is no ripple at the supply source, you will see ripple at the Vdd pin of a Buffer when its outputs are switching. The switching outputs create large di/dt which causes Vdd and Vss noise both inside the c... Currently Cypress does not have much buffer devices in the lower MHz range or KHz range. There is CY2302 amongst zero delay buffers that can go down to 5MHz. ... Usually the CY2308 is not designed as a Fail Safe device. However, the PLL of the 2308 will not lose lock as a consequence of the oscillator being pulled by a few hundred PPM. The 2308 PLL will be able to track any lo... At lower temperature, transistors become faster, so edge rates would become faster. Generally, we would expect the following parameters gett... There are weak pull-down for REF input and all outputs of Cypress clock buffers that can be checked in respective datasheets. One do not need to provide pull-downs, but if really needed, 5K or 10K can be fine. The low...
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