ADN8831 TEC Controller Application
Hello I’m an engineer in koreaI’ll make a TEC control board using ADN8831And the TEC is 170~300W, so I need to use 24V power supply for FET power(Vds)But the IC(ADN8831) is designed for maximum...
View ArticleQuery about ADN8831
hello, I have some queries about ADN8831's EVB.1, in figure 12 of its datasheet, the resistors and capacitors at OUT1 and OUT2 are no specific values, could you please help suggest the typical values...
View ArticleADN8831 - Which FET should I use?
Hi, I have a customer developing a circuit based on AN-695 schematic. The FET indicated (FDC6020C) is obsolete, so I would like to know which other FET's can I recommend them. Thanks,Fernando Guerra
View ArticleADN8831 temperature control chip
when we use ADN8831, we find reference voltage of chip output(PIN8) isn't stable, change amplitude is about 0.04V, it result in output square wave(PIN20) isn't good(power on for 6 minutes), pls see...
View ArticleAD630 Lock-in Amp
Hello everyone, I am looking to implement a lock-in amplifier in the range of 100kHz to 1MHz to obtain amplitude and phase information. Any thoughts on whether the AD630 will be ok for this frequency...
View Article3 lead ECG
I am planning to build a wireless ECG sensor. This is my first attempt to do anything of this sort. I was wondering if i should go AC-coupled AFE or DC-coupled AFE? Which one would be easier?
View ArticleCategory of VisualAudio Discussion
Hi, VisualAudio is a very good program for developing audio application using ADSPs. A separate category for it must be very popular. Thanks,Zwone.
View ArticleADF4007 PLL
Hello .; I am using ADF4007 PLL in my application board. PLL loses lock when, I try to read either R or N divider at MUXOUT pin. What would be the possible reason/s?Supplementary question: Would it be...
View ArticleDivision with AD538
I am trying to do on-board division with the AD538 chip. I have to voltage inputs which can have either negative or positive polarity. The discussed cases in the data sheet are clear for when the...
View ArticleAD630 Lock-in Amp
Hello everyone, I am looking to implement a lock-in amplifier in the range of 100kHz to 1MHz to obtain amplitude and phase information. Any thoughts on whether the AD630 will be ok for this frequency...
View ArticleADF7242 RC_Ready after Power On?
The ADF7242 data sheet suggests that, before issuing a radio controller command a SPI_NOP should be sent to check the status of the RC_READY bit of the status word ("it is, therefore, necessary to read...
View ArticleAD7843
Hello, I'm developing a solution that contains a TS module and uses an AD7843 to interface to a Microchip PIC18F4550, but I am not able to read the values X andY. I followed the instructions in...
View Articleinitialize adf7242 using pic
hi eveeryone. i'm working on my graduate poroject. one of the components i want to use is adf7242 transceiver. i would like to use pic18f452 to initialize it is there anyone who can steer me in the...
View ArticleADF7023 Transceiver Problems
Hi ! Here is some ADF7023 issues . please check if they should be added in errata . 1) Manchester coding and decoding in ADF7023 is implemented complementary . You can encode some bytes according to...
View ArticleEvaluation of ADF7023
Hi, I want to test the ADF7023. Therefore, I want to set up a simple network with one chip in transmit mode and one in receive mode (spatially seperated from each other, about 30m). Do I need 2...
View ArticleSoftware drivers for ADF7023-J
I have a design using the ADF7023-J xceiver and was trying to pull in software to initialize & configure it with my Atmel micro. I downloaded the adf7023.c and adf7023.h files which appear to have...
View Article320*240 resistive touch screen calibration problem
Hi every one.I have 320*240 LCD with resistive touch screen and touch screen controller of AD7843 ( All is together in one LCD from topway: KM2088S). I want to know what is the best way to calibrate...
View ArticleHaving noise problems w/ AD1988A / ASUS/ M2N-SLI Deluxe
I have the latest drivers and a creative 7.1 speaker setup. My monitor is a Olevia 42 inch LCD TV. I have this background hum. Just like when a guitar is plugged into an amp. There are times when it...
View ArticleADN8831 temperature control chip
when we use ADN8831, we find reference voltage of chip output(PIN8) isn't stable, change amplitude is about 0.04V, it result in output square wave(PIN20) isn't good(power on for 6 minutes), pls see...
View ArticleADF7020-1 question
I want to be able to offer two frequency ranges, one being ~600MHz and the other being ~900 MHz. I'm wondering if I can expand the range of the 7020-1 to get up to the 900MHz. It looks like the -1...
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