• ADRF5730 - Isolation between RF output port and control lines

    Hi,

    I'm planning to share the same control lines (D0-D5) for 6 no.of Digital attenautor ADRF5730 in different channel, by enabling one at time using LE. 

    In RF path I need the channel to channel isolation of 75dB. So, to calculate the RF signal coupling…

  • ADRF5730 S Parameters question

    It's important that I know the reference plane where these measurements were taken. The data sheet says they were taken on the probe matrix board and that this board also includes a TRL cal kit. It also says the "Measurements are made using GSG probes…

  • RE: ADRF5730 Power-up/Power-down Sequencing

    Hi wdecook,

    We recommend using pull-down resistors to ground on LE, PS to hold these to a valid logic state.

    When using the attenuator in parallel mode, we recommend pull down resistors to ground on D3, D4 and D5 for the same reason.
    In serial mode, D3…

  • RE: ADRF5730 Attenuator eval card in parallel mode - tie atten select lines direct to 3.3V?

    Internally, pins D0, D1, and D2 have 100k resistors to ground. (Figure 7).
    However, LE, PS, D3/SEROUT, D4/SERIN, D5/CLK do not have internal pullup/down resistors and they would be in undefined state. (Figure 5).

    We typically recommend using 10k Ohm pull…

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