Forum Post: RE: Interface AFE5808 with TSW1405
Hi Shadi, Thanks, We will incorporate this into HSDCPro for our 12-bit parts. Chuck
View ArticleForum Post: RE: AFE5801- DCLK 60 MHz or 120 MHz?
Mohit, I don't understand what you mean. Are you capturing the raw data with the FPGA DDR logic block and then post-processing in Labview? Thanks, Chuck
View ArticleForum Post: RE: How to design two AFE5809 for realize a doppler measurement...
Sam, Please see the attachment for the CW Mixer Out external amplifier reference. I recommend an external amp, but I have not tried going straight into the ADC. In this case, I believe the 500 ohm...
View ArticleForum Post: RE: How to design two AFE5809 for realize a doppler measurement...
Sam, The info for the AFE5816 would require an NDA. If you are interested in that we could help set that up. Could please tell me more about your application and company, or if you want to take this...
View ArticleForum Post: RE: doubt in Tx_sdk_v1 EVM
Hello, I face the same problem. If I use +-48V for VPP and VNN, can I take -48V for VSUB? Can I turn on -48V first and then 3.3V, then 1.8V, then -10V, then 10V, and 48V at last? Thank you.
View ArticleForum Post: RE: need guidence in powering of Tx_Sdk_V1 EVM
Hi Charles, I am also using TX_SDK_V1. I see your reply in 2013. "2) Technically yes. But we should recommend when the LM96551 outputs are connected to the transducer since the output can overshoot the...
View ArticleForum Post: Need help in using TX_SDK_V1
According to the User Guide of TX_SDK_V1, +-50V supply is needed and the VSUB is -50V. I only have +-48V supply, and I use +-48V and connect VSUB to -48V? I see someone in the forum say that the...
View ArticleForum Post: RE: doubt in Tx_sdk_v1 EVM
Hi Frank, Yes, you can connect the same supply to VNN and VSUB. Please make sure the output doesn't go too much lower than VNN during transient (overshoot). Less than 5% overshoot is reasonable. You...
View ArticleForum Post: RE: need guidence in powering of Tx_Sdk_V1 EVM
Hi Frank, Yes, the output can overshoot more than 10% if you are connecting it to the transducer. When that happens, we recommend VSUB to be 10% (depending on the overshoot) lower than VNN. Yes, you...
View ArticleForum Post: RE: Need help in using TX_SDK_V1
Hi Frank, You need to make sure the power off sequence is off too. Also, if you are using +/-48V, make sure you don't turn on the CW mode on the LM96570 . Regards, Charles
View ArticleForum Post: RE: Need help in using TX_SDK_V1
Hi Charles, Thank you very much for your reply! If I use +-48V for VPP and VNN, what is the best value of VSUB? The datasheet only say VSUB should <=VNN. And I see your reply that 'Yes, the output...
View ArticleForum Post: RE: Need help in using TX_SDK_V1
Hi Frank, I suggest you set VSUB to -60V, and then measure the worst case overshoot on the output. This way you know what the lowest voltage on the output is. You can then set VSUB to the lowest output...
View ArticleForum Post: What is the best way to feed a differential signal into the AFE5809
I am looking at connecting a differential signal into the AFE5809EVM , what would be the best way to do this? What differential to single conversion circuit would you recommend? External op-amp? My...
View ArticleForum Post: RE: Need help in using TX_SDK_V1
Hi Charles, Got it. Thank you so much! Frank
View ArticleForum Post: RE: What is the best way to feed a differential signal into the...
Hi Pavel, The AFE5809 has only single-ended inputs. I would recommend a transformer such as the ADT1-6T from mini-circuits. An op-amp could also work, but it will introduce noise into your signal...
View ArticleForum Post: RE: What is the best way to feed a differential signal into the...
Hi Chuck Our design also requires CMR to remove common mode noise. What would you recommend with the ADT1-6T to remove common mode noise? This is why we are also looking at low-noise op-amps (<1.1...
View ArticleForum Post: RE: What is the best way to feed a differential signal into the...
Pavel, yes the op-amp is a good choice, but the noise is a bit high. Try the LM49990 Chuck
View ArticleForum Post: RE: Need help in using TX_SDK_V1
Hi Charles, We are using the TX_SDK_V1 envaluation board with the powering up sequence as: GND,VSUB(-50V),3.3V,1.8V,+5V,-5V,+10V,-10V,+50V,-50V. However, when we power up the +50V, the board is...
View ArticleForum Post: Need help! Got damage when TX_SDK_V1 is powered up.
Hi Charles, We are using the TX_SDK_V1 envaluation board with the powering up sequence as: GND,VSUB(-50V),3.3V,1.8V,+5V,-5V,+10V,-10V,+50V,-50V. However, when we power up the +50V, the board is...
View ArticleForum Post: RE: Need help in using TX_SDK_V1
Hi Frank, Sorry to hear your board is damaged. You follow the power sequence correctly. What is the position of J_SUB? Since you are using separate power supply for VSUB & -50V, there should be a...
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