Clik here to view.
demodulation sin o square wave?
Hi,i'd like to use AD8333 to demodulate a pass-band signal with 200kHz local oscillator.The datasheet says that i can use both sin wave and square wave. My question is:The use of a square wave produces...
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 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...
View ArticleADF7020 communication distance issue
chip is ADF7020, operation frequency is 470MHz, transmit power is 1W, receive sensitivity is -108dBm, but communication distance is only 300-400m, selected Antenna is 470MHz., pls help analyze, in...
View ArticleProblem starting EVAL-AD9837SDZ software
Analog Engineers, I have two EVAL-AD9837SDZ boards that I would like to program on my computer, but I am having an issue getting the software to open. The program can't locate the LabVIEW Run-Time...
View ArticleADF7242 and frequency hopping in GFSK/FSK mode
Hello, I am looking at using the ADF7242 for a proprietary Frequency Hopping radio link.I would like to determine the blanking interval, i.e. how long it will take to hop between frequencies. Referring...
View ArticleADA4571 Evaluation Software doesn't be opened
Hi All, I am now trying to install the ADA4571 Evaluation Software into my PC, it doesn't work so far.I am trying to install it along with the installation procedure written in theUG-739.The software...
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 Articleadf 7023 - crc
Hi to all.I'm trying a demoboard with adf7023.I like "programmable crc" option.Is there anyone that could explain to me what poly I have to use to obtain crc- xmodem ? (poly 0x1021, init 0x0000,...
View ArticleECG HOLTER MONITOR DESIGN
Hello Bill, I am currently working on a layout design for this ADI solution. I have a few questions regarding the circuit presented here: From the biomedical point of view, what are the minimum...
View ArticleADF7021BCPZ Sensitivity
We are using the ADF7021 in a design at 450-470MHz 1200 baud with a frequency deviation set at 4.8KHz. In order to increase receiver sensitivity, will lowering the frequency deviation to 4.3KHz...
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 ArticleQuestions on pins MIX_I, MIX_Q, FILT_I and FILT_Q for ADF 7020
Dear Sir/Madam, My primary goal is to find the phase information of the received signal using a quadrature demodulation architecture receiver/transceiver. Therefore the signals I am most interested in...
View ArticleQuestion Regarding AD8339
Hello to everyone in Engineer Zone, I wish to post a technical inquiry about the AD8339. According to the datasheet for product AD8339 Revision B on page 29, and with reference to the section "using...
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 ArticlePSpice models
Hi Engineers, I am trying to simulate a circuit on my PC using one of Analog Devices models, "ADA4817 SPICE Macro Model" I am having trouble using this circuit model file and finding information on how...
View ArticleSuggessions required to improve perfomance of ADF7021-V
Hi all, I have interface ADF7021-V daughterboard with an 8 bit microcontroller to transmit a realtime ECG signal. I found the system is working perfectly without any error in case of Line Of Sight...
View ArticleLithium Iron Phosphate batteries
I am using Lithium Iron Phosphate 3.7volt cell @ 4700mA.hour rating. I want to make batteries with output voltages of 24volts and 32volts. They will be recharged from photovoltaic panels only. 7...
View ArticleConfirm die markings to top markings
We have P/N AD641AP with Date Codes 0043, 0045, 0313, and 0320. The Die (wafer) marking found on all devices is AD640 ADI M 1988. The back side injector had PHILIPPINES with various numbers such as...
View ArticleADF7021 Power Settings
I'm working on an application that uses the ADF7021 as an analog FM transmitter at 156MHz. I use an external inductor of about 18nH and have the RF divider enabled. The problem I'm having is that the...
View Article