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Author: PradiptaB_11 Version: ** Phase noise will be higher in VCXO mode when compared to the non-VCXO mode in general. CY29430 is a 16 pin QFN device fro... Version: *B Question: How many transistors and gates does the CY2305SXC-1HT part have? Answer: Cypress’s CY2305 part family has approximately 5200 transistors or 1300 gates. Version: ** Question: What is the effect on the CY2305 output when the input reference clock is removed? Answer: The output usually holds the original frequency for only a few cycles. Generally, you c... Version: ** Question: What are the Worst Case Rise(Tr) and Fall times(Tf) of CY2CC910 at 3.3-V VDD? Answer: Based on characterization data, the worst case Rise(Tr) and Fall times(Tf) are mention... Question: What all RoboClocks are 3.3V-compatible? Answer: The Low Voltage RoboClock (CY7B991V) and RoboClock (CY7B9911V) are completely 3.3V-compatible. The original RoboClock CY7B991/2 (along with the CY7B9... Question: Can I give Spread Spectrum Clock (SSC) input to any Cypress Clock device? Answer: No, this is not true for Cypress clock devices which have on chip PLL. When SSC is given as input to Non-Zero Delay B... Question: Are there any power-up conditions that cause the part to misbehave for 5V RoboClock? Answer: Yes, there are. It is mentioned in Note 3 of the CY7B991/2, CY7B9911 datasheets; and Note 11 of the CY7... Question: I need to set the FS781 filter values to give 0.3%, 0.5% and 0.7% spread bandwidth. They are running at 32MHz. What would the capacitor values be? Answer: In general the FS781 PLL design does not su... Question: When operating the CY23EP05 or CY23EP09 at 2.5V, can I drive it with a 3.3V input clock? Answer: The datasheet specifies a maximum input voltage, VIH, of VDD + 0.3V. This specification reflect... Question: Can the edge rate of the CY23EP05 meet 1.5V/ns when the frequency is 66 MHz and CL=30pf? Answer: The CY23EP05 cannot deliver a slew rate of 1.5V/ns at the 30pF load. The spec for rise/fall time @ 30... Question: The exposed paddle of the CY2DP1510 has no electrical connection. Can it be left floating? Answer: The exposed paddle of the CY2DP1510 must be soldered to the ground plane for heat dissipation purpos... Question: Is there any Trise and Tfall (slew rate) requirement for the input of the Xtal input (Xin) of CY23FS04? Is the input pin (Xin) 5V tolerant? Answer: The XIN and XOUT are crystal input pins for CY23FS0... Question: What is the period and cycle to cycle jitter when banks A and B are at 25MHz and bank C at 50MHz? Answer: The following jitter measurements have banks A and B at 25 MHz, bank C at 50 MHz. ... Question: What is the technology, die size, transistor and gate count for CY2302? Answer: For the CY2302: It's a 0.5 micron technology. The die size is 79x71 mil. And there are 2056 gates. Question: What is the input frequency range for the CY2302 zero delay buffer? Answer: The allowed input frequency range for the CY2302 is determined by the output multiplication settings selected and the permi... Question: What are the values of Maximum junction temperature and Theta JC thermal resistance of CY2302SXI-1 part? Answer: For CY2302SXI-1 part,Maximum junction temperature value is 173.36 degree Centigrade a... Question: What is the REF input frequency range for RoboClock? Answer: If the FB input is connected to an undivided output, the REF input frequency range will be the same as Fnom operation frequency ran... Question: Why the maximum output frequency is 200MHz when the VCO frequency can go upto 800MHz in CY7B9945? Answer: Although CY7B9945V VCO goes up to 800 MHz, there's always a divide by 4 internally (not show... Question: What is the maximum junction temperature (Tj) and thermal resistantance (Theta JA) for the CY29947? Answer: For the CY29947, Tj max is 150C and Theta JA is 80 C/W. Question: Can CY7B994V output 33, 66, 100, 133 MHz simultaneously? Answer: For CY7B994V, the internal VCO ranges from 400MHz to 800MHz. But there is an extra divider between VCO output and output divider. The...
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