Issue with MCP47CVB12 DAC analog output (jeevan_t_raj)
Hi all, In our project, we are using the DAC MCP47CVB12, and its I2C lines connected to a microcontroller. We need to set some analog output on each of the DAC channels. We configured the chip with the...
View ArticleIssue with MCP47CVB12 DAC analog output (jeevan_t_raj)
Hi all, In our project, we are using the DAC MCP47CVB12, and its I2C lines connected to a microcontroller. We need to set some analog output on each of the DAC channels. We configured the chip with the...
View Article5V VBUS Necessity USB3340 (Simon)
Hi,we are developing a device where internal communication between chips must be done via USB2.0 HS.The chips we are using don’t need the 5V VBUS, only the DP and DM Signals. We want to use the USB3340...
View ArticleUSB3340 clock noise (mdock)
We are using USB3340. When we connect the clock the signal puts significant noise on the power supply. If we use one EVK with 4.6 in traces it works, on a separate evk with a 5.7 in long trace the...
View Article5V VBUS Necessity USB3340 (Simon)
Hi,we are developing a device where internal communication between chips must be done via USB2.0 HS.The chips we are using don’t need the 5V VBUS, only the DP and DM Signals. We want to use the USB3340...
View ArticleM90E36A calibration (marcell_ratky)
Hi,I'm working on a project using the M90E36A poly-phase energy metering IC and I'm having trouble understanding the calibration setup from the datasheet and app note.Power Offset Calibration I'm not...
View ArticleRecalibration Time MTCH101 and MTCH102/5/8 (niho)
Dear forum team, we would like to develop a proximity touch system for a famos company and we found out the MTCH102 is the best choice for EMC immunity.The controller typ MTCH101/2/5/8 is a very...
View ArticleUSB5744 - Hub Controller was not enabled (Yogi Salzi)
Hello!A USB5744 Hub Controller is implemented on my PCB according to the rules of AN26.2 and AN26.21 documents. Unfortunately, the only difference is the absence of 0.1μF capacitors in the SS-TX lines...
View ArticleMeasuruing voltage and frequency using M90E26 (anusree)
Hi, I'm using the M90E26A for measuring RMS Voltage and frequency. I have calibrated the IC for 240V, 10A and measured a 50Hz signal and I am able read all the measurements correctly. Now I have to use...
View ArticleUltra sonic transmitter type of applied voltage (HighTechPower)
Hi. I'm using an ultrasonic transmitter. Please find below it's link. I'm confused if it will operate from DC 5 V or from square wave 40 KHz, 5 V pulses? Also can I operate it at 25 KHz by just giving...
View ArticleMeasuruing voltage and frequency using M90E26 (anusree)
Hi, I'm using the M90E26 for measuring RMS Voltage and frequency. I have calibrated the IC for 240V, 10A and measured a 50Hz signal and I am able read all the measurements correctly. Now I have to use...
View ArticleMeasuruing voltage and frequency using M90E26 (anusree)
Hi, I'm using the M90E26 for measuring RMS Voltage and frequency. I have calibrated the IC for 240V, 10A and measured a 50Hz signal and I am able read all the measurements correctly. Now I have to use...
View ArticleMCP2221-I2C-Usb to SMBus expected error rate? (DaveCamp)
Hi all, I'm quite new to working with SMBus adapters so I feel I may be doing something wrong or have some incorrect settings somewhere. I wonder if anyone could shed some light on my scenario in that...
View ArticleHow to obtain maximum speed out of the MCP33131 1Msps adc using a...
Hello List,I want to operate the MCP33131 ADC at 1 Msps, and hope that with spi/dma this should be possible with the sam4s.To control the adc the CNVST signal has to be asserted, say, 800ns for the...
View ArticleMIC4605-2 half bridge driver (manojyahoo)
Hi, How much is the voltage of output pulses of MIC4605-2 half bridge driver IC at the HO pin if the operating voltage is 12V ? it is showing 35 volts pulses at HO pin. Why so? Regards, Manoj..
View ArticleMCP3903 Common Mode Input Voltage (Peter Kazakoff)
I'm working on an AC power metering application using the MCP3903. I'm using current transformers with built-in shunt burden resistors as the current transducers. As the CTs are floating and there is...
View ArticleEVM for KSZ9896 (Chithambara Ganesh)
Dear Microchip Team, We want to use KSZ9896 in our design and to enable early development of SW activity we are searching for KSZ9896 Evaluation availability. But we come to know KSZ9893 & KSZ9897...
View ArticleADC Spec: ENOB and DNL (WavetrixWK)
When looking at ADC specifications for performance, how does the Effective Number of Bits (ENOB) affect the Differential Non-Linearity (DNL)? If the DNL is given in LSB units, would the ENOB affect how...
View ArticleTo generate dual output pulse from two wires transformer (HighTechPower)
Hi. I want to design a transformer power supply circuit which takes 220 VAC as input and produce 12 VAC output. The hard part is the transformer has only two wires as secondary instead of three. As...
View ArticleProblem setting up multiple MCP23017 chips (phanos)
Hi, during the past weeks I have been trying to set up 8 mcp23017 chips to work on a beagle bone black(bbb) device. I am connecting all the chips on the same I2C bus on the bbb and powering them up...
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