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  • ADC3662: ADC3662 internal NCO

    Resolved
    Part Number: ADC3662 Dear TI, We are using a ADC3662 in our design with complex downconversion. One thing not clear from the datasheet is which component, I or Q, is obtained from the sine and which one from the cosine of the local oscillator. Thanks…
    • Resolved

  • ADC3662: ADC3662 Intermittent Analog Input "Lock-up" & Signal Attenuation Issue (~10% Occurrence)

    TI Thinks Resolved
    Part Number: ADC3662 Dear TI Technical Support Team, I am writing to request urgent assistance regarding a critical issue encountered with the ADC3662 in our 4-channel synchronous acquisition system. 1. System Setup: Configuration: 2x ADC3662…

  • ADC3662: Replace ADC3663 with ADC3662. What modifications are needed for the low-pass and anti-reverse sections in the original front-end circuit?

    Part Number: ADC3662 Other Parts Discussed in Thread: ADC3663 , Replace ADC3663 with ADC3662. What modifications are needed for the low-pass and anti-reverse sections in the original front-end circuit? Below are two screenshots of the front-end schematic…

  • ADC3662: The SPI communication can not receive data of ADC3663

    Part Number: ADC3662 ADC3662schematic.pdf Hello expert, The schematic of ADC3662 is attached. However, there is a bug on SPI happened. The CLK is normal however the data can not be received. Could you help to check the schematic for us? Many thanks…

  • ADC3662: Terminal processing when chB is not used

    TI Thinks Resolved
    Part Number: ADC3662 Tool/software: Hi I have a question about the ADC3662. Is there any specification for terminal processing when chB is not used? I couldn't read it from the data sheet. Best Regards, Kato

  • ADC3662: CLKP, CLKM driver

    TI Thinks Resolved
    Part Number: ADC3662 Tool/software: Hi, I want to connect ADC3662 to FPGA but I am struggling to find how can I drive sampling clock inputs CLKP, CLKM. What logic levels and/or driver I must use to have best performance? I read the datasheet but there…
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  • ADC3662: Hardware Reset

    Resolved
    Part Number: ADC3662 Tool/software: Hi, is there always a hardware reset needed after power-up phase? If yes, would it also be possible to keep the RESET pin at high from beginning, so: Thanks for help!
    • Resolved
    • Answered

  • ADC3662: Power up

    Resolved
    Part Number: ADC3662 Tool/software: Hi, the datasheet says that the REFBUF pin should be have a delay to the AVDD by 2ms: In the ADC3662EVM schematic is the REFBUF pin connected to AVDD directly via a jumper: So in my opinion there is no delay…
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    • Answered

  • ADC3662: INPUT RANGE FOR ADC3662

    Resolved
    Part Number: ADC3662 Other Parts Discussed in Thread: THS4541 In adc3662`s datasheet, chapter 6.6 say that input full scale is 3.2 Vpp and input commom model voltage is 0.95V. So the input range is from (0.95-1.6)V to (0.95+1.6)V. Is it right? However…
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    • Answered

  • ADC3662: ADC input protection

    Resolved
    Part Number: ADC3662 Other Parts Discussed in Thread: , THS4541 Tool/software: Hi, I'm using the ADC3662 with the THS4541 as FDA like at ADC3662EVM. In the datasheet of the ADC3662 it's mentioned that protection diodes may be needed to protect the…
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