Hello,
Do you have any data for ADN2841 input to output(IMODP) propagation delay at 25C degree and Vcc=5V?
Best regards and Thanks,
Ian
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ADN2841 input to output propagation delay
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Question about test setting of ADN8834
Hello,
My customer wants to confirm the performance of ADN8834 using EVM first.
And they are trying to test a ADN8834 EVM and TOSA module with Thermoelectric Cooler (from NeoPhotonics.)
During the test, they say that they can't confirm TEC currents, they can confirm only small change of TEC currents occasionally.
So they request how to confirm the operation of ADN8834 and how to set up ADN8834 at temperature test.
(They use plat cable for connecting between ADN8834 in EVM and TEC in TOSA module.)
Would you advise me how to test ADN8834 in EVM ?
If you have any questions, please let me know.
Rgerads,
Se-woong
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Are source codes available for EVAL-ADF70xxMBZ2 and EVAL-ADF7021DBZ2?
Hi,
I would like to have a copy of all available source codes for EVAL-ADF70xxMBZ2 and EVAL-ADF7021DBZ2.
email: aishamagayoong@yahoo.com
Thank you very much.
Sitti
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ADN8834, Amplifers
Hallo,
are the two chopper stabilized amplifers inside the ADN8834 on while the chip is in standby. I plan implementing a digital control loop arournd the AD8834. It want to use one of the amplifiers for buffering the voltage across the thermistor. But I want to measure temperature without activation the power stage.
Yours,
Peter Hintenaus
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AD9970
Hello,
I'm looking for the complete data sheet for this device but it is nowhere to be seen. This web site really sucks, there is no way to find out the email of anyone so I can get a copy of the complete data sheet. If some one has one please let me know.
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EVAL-ADF70xx driver problem
I've EVAL-ADF70xxMBZ2 recently procured to use with EVAL-ADF7021 (and 7021-N).
I had installed previous version of ADISIMLINK on my computer so i tried the provided "purge_ADIismLink" to clear the registry. Somehow it can not delete the registry entry (stops with Error encountered (0xe0000235) message)........... I found the related key "VID_0456&PID_b400" using regedit and tried to delete it manually but "access is denied"... I tried all known methods from microsoft forums to delete the key but it's useless. Eventually I could not install the driver.. BTW, It's installed fine on another PC which was clean of ADISIMLINK. Any suggestions?
Another problem on the other PC (which the driver is installed fine) ADF7021.exe and ADF7021-Nexe give "Run Time Error '48' File not found: parllio" and exits. It works for ADF-7021-V.exe but i am using ADF-7021 and ADF7021-N.
thanks for the support.
Ugur
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ADF7023 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 manchester rule (described in datasheet or Wiki) and send it via Eval kit to another ADF7023 (receiver) . and enable manchester decoding on receiver side . you will see the bytes decoded are complemented .
When you use manchester encode & decode on both sides , both of them complement bytes and you will not sense the problem . this issue appeared when I was transmitting manchester encoded packet by another transceiver (CC1101 from TI) and receiving them via ADF7023 .
2) Immediately after CMD_HW_RESET, ADF7023 goes to sleep and consumes current less than uA . but 50ms to 100 ms later, ADF7023 will consume about 2mA for a duration of less than 10 ms and current goes low again . I saw this behavior via Ampere meter that was plotting current consumption on PC .
So I don't know if ADF7023 is doing some calibration process or any other task after going to HW_RESET state. But if I can disable this wake up like behavior by any change in register setting, average current consumption of my circuit will be reduced . because I should force ADF7023 in sleep frequently.
3) If you issue CMD_HW_RESET , ADF7023 will consume about 0.5 uA more than current specified in sheet . but if you set BBRAM_Retention_Enable bit before issuing CMD_HW_RESET , the current consumption will be reduced . I don't know why . because HW_RESET state should be independent of RAM retention bit status .
4) Matching circuit that is implemented on Daugther card has 2 LC components more than diagram specified in reference design . please let me know if the difference affects performanc . Can I have updated reference designe with detailed BOM ?
Thanks in advance for you attention
Yavari
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adf7021-N
hi everyone;
my name is harsha ;i wanted to program adf7021-N eval board with msp430F5438A experimental board . the interface part is the problem the header jacks are not identical so can anyone suggest me how to connect them reliable what the way and what kind of connectors do i need and carry on .i'm attaching msp430 experimental board datasheet
hoping reply soon
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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 spurious frequencies? It is better use Sin wave?
i need 200kHz very stable oscillator (low phase noise), i find one of GreenRay Industries, but the output is only square wave.
Is there a way to generate a 200kHz stable frequency sinusoidal?
thanks
Paolo
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ADF4007 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 possible to use ADF4007 to some configuration to deliver a lock detect Signal?
Thanks a lot for your time and help.
Regards
Mannam
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AD5522 can not communicate via SPI?
Hi All:
I have a AD5522 Evaluation Board,and it's work well on Evaluation Software 1.6.1.
Now I want to use my STM32F103ZE to control the AD5522,but I can't communicate with AD5522 via SPI.
It's Evaluation Software timing,I want to read system control register,so I click READ SYSTEM CONTROL REGISTER ,and then, the software will send 0x10000000 to AD5522,and AD5522 will return 0x00000020 to me, it's work well in anytime.
Write 0x10000000
Read 0x000020 (Default value when AD5522 power on)
Now,I want to use my STM32F103ZE to read system control register,so I connect STM32F103ZE and AD5522,and remove the LK9 to disable USB function.As show below picture.
The first time,STM32F103ZE will send the command 0x10000000 to AD5522,that meaning read system control register
And then,STM32F103ZE will send 0xFFFFFF try to read data from AD5522, but the Busy pin goes low when 19th rising clock edge of SPI-CLOCK? Even so the result is 0x000020,that is true.
But the second time,STM32F103ZE send the command 0x10000000 to AD5522 again,the Busy pin goes low when 5th rising clock edge of SPI-CLOCK and 31th rising clock edge.
And then ,result is 0x000000,that's wrong(0x000020 is true).
Simulation SPI Code:
uint32_t AD5522_SPI(uint16_t bits, uint32_t dat)
{
uint32_t Recvice = 0;
uint8_t i;
AD5522_CS_L;
AD5522_Delay(2);
//bits = 32 when write data to AD5522 and bits = 24 when read data from AD5522
for(i = 0; i < bits; i++)
{
if(dat & 0x80000000) //MSB
{
AD5522_MOSI_H;
}
else
{
AD5522_MOSI_L;
}
//CLOCK High
AD5522_CLK_H;
dat <<= 1;
Recvice <<= 1;
AD5522_Delay(1);
AD5522_CLK_L;
if(AD5522_MISO) //Read data when CLOCK falling edge.
{
Recvice++;
}
AD5522_Delay(3)
}
AD5522_Delay(1);
AD5522_CS_H;
AD5522_CLK_L; //Idle time,CLOCK is low
AD5522_MOSI_L; //Idle time,MOSI is low
return Recvice;
}
This problem puzzle me three days,can you help me?
sorry for my bad English.
thanks.
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GFSK transceiver multi carrier frequence & multi baud rate
Hello,
I am looking for a tranceiver multi carrier frequence & multi baud rate for the ISM band 868 MHz, I have seen the component ADF7023
http://www.analog.com/static/imported-files/data_sheets/ADF7023.pdf
Application for smart meter , 802.15.4g
Thanks in advance for your help.
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Can the ADF7023 demodulate GSM
As the ADF7023 have a baud rate of 300 kbs, can it demodulate a GSM burst ? As i can see, it can be configurated with very flexible preambule and sync
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ADF7021-N,RSSI level always 0.Where is my error?
Hi to everybody in this forum,
thanks in advance just for reading this
My firmware is not able to read RSSI level on ADF7021-N mounted on a specific board
The board itself can be connected to the Eval board,and in this case RSSI can be read,
It is pretty correct,i.e -60dBm RSSI vs -59 dBm on a very good spectrum analyzer.
So i can guess that my hardware works fine.
If i control the ADF7021 by means of a uC i can succesfully set the Tx frequency,i have correct readback of VDD,Product Id(0x2111),external ADC IN but RSSI remains0x500..
To have something different i have to let ADC disabled in register 8:I this case i have RSSI=0x52F ,changing signal level has not effect.
I use the EVB as a Tx,generating a modulated signal,say 100MHz at2,4Kbps 1010 GFSK.
The Rx is my bord,
i set at 170Mhz Rx mode(synth dividers calculated 100KHz lower,169.90 Mhz), MUXOUT set to digital lock,i wait for it going high(in Tx it works)
then i perform the readback in the following steps
1)ADC Enable setting bit 8 of register 8 (0x108)
2)Setting value to write in Readback setup register :Readback for ADC out and ADC converting RSSI,Readback enabled
3)I write the above value(0x147) in Register 7 ,Readback Setup Register
4)I set register 0 to have RSSI_Ready signalled on MUX_OUT ,
5)I wait until RSS_ Ready is high,but it it looks always high,..why?
6)I perform the Readback in 18 clock cycles
7)I turn off ADC
Thanks again for your attention
Diego
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ADF7025 for Wireless audio with ADAU144x DSP
Hi Guys
Is there any information on using this as a wireless audio TX/RX im looking at adding wireless transmission to my DSP. I have looked at the data sheets but they all reference the BlackFin DSP series which is more than i need for an active speaker system.
Many thanks
Graeme
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Simulation software and a library for ADN3000-06 ic
I am a university student doing my final year university project.Part of My project is to design a fiber optic receiver.I am employing Analog devices ADN3000-06-50A-PT7 ic for this purpose.I am encountering several issues with the ic ...
1) First question i have is this ic is in die form,therefore it is hard to solder for undergraduates like us.So do you have this ic as a chip with a package?
2)Do you have footprints available for this ic,if so please guide me how to get a footprint?
3)I am planning to design the application for about 3Gbps.I have to design circuit and simulate by a software first.What is the simulation software that can be used for a RF design like this?Does Analog devices has a library created for ADN3000-06 ic for this simulation software?
I would be really grateful for your supports to fix my above mentioned issues...
Thank you
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ADF7012 capable of Biphase L Modulation
Hello:
Is the ADF7012 capable of biphase L modulation scheme? The application would be for search and rescue beacon transmitter.
Thank you,
Frank
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MFSK Modulation Scheme of ADF7021-V
Can anyone help me figure out whether the phase of the 4RCFSK signal modulated by ADF7021-V is continuous? And how can I distinguish the continuous phase FSK and the discontinuous phase FSK by analyzing their spectrum?
Many thanks.
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Questions 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 are the I and Q signals at the output of the two down-conversion mixers since phase=arctan(Q/I) if my understanding is correct. From the data sheet of ADF7020, I learned that there might be several pins related to I and Q signals, i.e. MIX_Q, MIX_I, FILT_I and FILT_Q.
I wonder which pins I should use to fulfill my purpose here? Will I be able to obtain DC values for I and Q signals here?
Also, the datasheet indicates that these pins are high impedance pins and should be left open, how can I be able to monitor the signals from those pins?
Thank you so much in advance.
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Difference between ADN8834CB-EVALZ and ADN8834MB-EVALZ
What is the difference between ADN8834CB-EVALZ and ADN8834MB-EVALZ? Do you have any additional information or datasheet for the eval kits?
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