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Forum Post: RE: TSW1400 Firmware Source for AFE5809EVM

Could you provide the FPGA firmware source code for TSW1400 again. Thank you. Chang-Lin

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Forum Post: RE: LM98725 black calibration

Hi Elnur Thanks for the detailed information, that is very helpful. I have reviewed the sensor datasheet and your register settings. The only register value I have some concern about is the Black...

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Forum Post: LMP91300 circuit doesn't work

Hi, I have made proximity sensor with LMP91300 refer to its datasheet. However, I couldn't work it. I have confused about Rext B' and Rsense's values. Could you please help me, All the best

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Forum Post: RE: SPI for AFE5809EVM Demodulator Registers

Hi Chuck, Do you have any advice for us on this issue? It's holding up development of our product so we are keen to get it resolved as soon as possible. Thanks, Duncan

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Forum Post: TSC2046 interrupt pin voltage coming as 1.76 volts when touched

I am using interrupt for touch sense TFT LCD application, where touching on LCD makes transition (on EINT pin) from high to low ( 3V to 0V ) and touch sense controller is through SPI interface to...

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Forum Post: RE: TSW1400 Firmware Source for AFE5809EVM

Chang-Lin, https://txn.box.com/s/m6s4uiqfi7a1ytvigpd45exbjs1wak2m Chuck

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Forum Post: AFE5808 - strange artefacts

Hello, One of our customers is working on Analyzer equipment, using the AFE5808 . The customer is experiencing some strange artefacts during the measurements. When using a 5mVpp sine wave 1.8MHz, a...

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Forum Post: RE: LM98725 black calibration

Hi Jim Thank you for your answer. We tried using larger values of Black Target from your recommendation. It works but with some shades. We found out that Black calibration works properly when our...

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Forum Post: RE: AFE5808 - strange artefacts

Meir, It seems from the noise plot, that you could be skipping or missing some of the LSBs. Can you confirm that you have all 14 bits in your data? Please use a test pattern mode, like ramp, to confirm...

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Forum Post: RE: SPI for AFE5809EVM Demodulator Registers

Hi Duncan, We have verified a very stable readback using the EVM and GUI. Here is my sequence 1. With SPI_DIG_EN=1, write 0x0[1] REGISTER_READOUT_ENABLE=0 2. With SPI_DIG_EN=1, write any register, such...

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Forum Post: RE: TSW1400 Firmware Source for AFE5809EVM

Dear Chuck, Thanks for your reply. But I still can't link the website and get the file. Could you send it to my mail: hulong@itri.org.tw Thank you very much. Chang-Lin

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Forum Post: RE: TSC2046 interrupt pin voltage coming as 1.76 volts when touched

Did you try to capture the waveforms on the PENIRQ pin? I would suggest you do so. Andy

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Forum Post: RE: SPI for AFE5809EVM Demodulator Registers

Hi Chuck, pt 5: For the GND connection we are using the GND on P14 which is board GND. Q1: We are using P14, but we’re doing the following instead to disable the optos: Short U16 pins 9 & 10, lift...

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Forum Post: RE: LM96550

Hi: I have design a PCB for the LM96570 and LM96550 for PZT (Piezoelectric) driver. I have already make that board work which the eight channels of LM96550 can output 50v square pulses and everything...

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Forum Post: RE: LM96550

Hi Yuan, I assume you following the same power up sequence whether the PZT is connected or not. The 330pF cap from the LM96550 output to ground emulated the PZT's capacitance. If you connect to the...

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Forum Post: RE: LM96550

Thank you very much for your reply. I will try remove the 330pF caps. When I following the power up sequence, the PZT is not connected. I connected the PZT after the power up. Should I connect the PZT...

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Forum Post: RE: LM96550

Hi Yuan, It shouldn't matter. However, to be on the safe side, I would connect the PZT before power up. Regards,Charles

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Forum Post: TSC2007 PENIRQ problem

Hi, I would like to ask you a question about PENIRQ of TSC2007 . My customer has been evaluationg TSC2007 and found the problem with PENIRQ behavior. Q) After power-on, following phenomenon has...

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Forum Post: TSC2007 NC pin

Hi, Could you tell me about NC pin(7, 8, 9, 15) of TSc2007 ? Is it possible to connect these NC pin to GND? Or we should keep open (No-connct) these NC pins? Thanks, Best Regards,

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Forum Post: RE: TSC2007 PENIRQ problem

Hi Takumi, See my comments below: a) The POR issue is the most common issue for TSC2007 . For more information, please refer to the app note: www.ti.com/.../sbaa161.pdf b) Yes. TSC2017 is compatible...

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