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  • AFE5851: LOW_FREQUENCY_NOISE_SUPPRESSION and VGA gain.

    Resolved
    Part Number: AFE5851 Tool/software: AFE5851 has a bit called LOW_FREQUENCY_NOISE_SUPPRESSION. What exactly does this bit do? Also, the AFE has a -6dB to +31dB VGA, however, the input stage saturates at 1V and the ADC saturates at 2V, so what sense does…
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  • AFE5851: AFE5851 - sampling two AFE5851 data with ones bit clock

    Part Number: AFE5851 Hi! I'd like to use multiple AFE5851s in our design with 20 MHz sampling clock (480 Mbps LVDS lines wired to an FPGA). I wonder whether it's possible to use another AFE5851's bit clock to sample ones data. Assuming well equalized…

  • AFE5851: Analog Input channels influence each other with DC coupling inputs

    Part Number: AFE5851 Tool/software: 1. Testing for the AFE output setup All the signal VOUT_S<0>, …, VOUT_S<15>, VOUT_S<16>,…,VOUT_S<31> are tied together, and could be adjusted by a on board pot The another signal ( DAC-OUT0,…, DAC-OUT31 ) is controlled…
    • Answered

  • AFE5851: AAF stage and input stage paramenters

    Resolved
    Part Number: AFE5851 I would like to ask two questions: 1. I want to use this AFE not for a ultrasound application, so I need a fixed VGA gain, which I saw it is possible by using the static mode explained in the datasheet. Also I would like to know…
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  • AFE5851: Static PGA Mode doesn't write

    Part Number: AFE5851 I've been working with getting a AFE5851EVM board connected to custom logic. I have no issues except programming the TGC; I've only tried setting static gain. I first set the TGC_REGISTER_WREN bit in reg0, then write the coarse…
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  • AFE5851: Can I Interfacing AFE5851 and TX7316

    Resolved
    Part Number: AFE5851 Other Parts Discussed in Thread: TX7316 , TX7332 Am developing handheld ultrasound, Now I want to know if AFE5851 and TX7316 can works together/ interfaced together and ALSO I want know if there is any reference designs to refer…
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  • RE: AFE5851: AFE5851

    Hi, Thanks for using AFE5851 device. We will reply to you very soon. Thank you! Best regards, Chen
    • Answered

  • AFE5851: Could AFE5851 Sample DC analog input with DC coupling

    Resolved
    Part Number: AFE5851 Hi, I have an image application that needs 32 analog inputs. I designed it with two AFE5851 chips. The analog input is driven by an amplifier output with 50 OHM serial resistor directly. The amplifier output is 1.1VDC plus 0 ~ 1V…
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    • Answered

  • AFE5851: Cannot set FINE_GAIN in Static PGA mode

    Resolved
    Part Number: AFE5851 Hi, I have run into a problem, that I hope you can help me with. We use several AFE5851 in static PGA mode. While setting COARSE_GAIN register seems to work fine, FINE_GAIN register does not seem to have any impact on the signal…
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    • Answered

  • AFE5851: Synchronized sampling over multiple ADCs

    Resolved
    Part Number: AFE5851 Other Parts Discussed in Thread: CDCLVD1216 , AFE5832LP , AFE5816 Hi, We have a design with multiple AFE5851 devices. They receive the same sample clock of 20 MHz and they generate their on 10 MHz frame clock. However we have…
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