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TUSB1044: TUSB1044 use?

Part Number: TUSB1044

For the use of TUSB1044,

1. The typical RX design of AC coupling capacitor output and the principle of EVB are both 330nF, but the BOM of EVB(TUSB1044RNQEVM) is 220nF, please help confirm the specific size.

2, do not use DP function, AUX and SUB pins can be suspended?

3. What is the default gain of CFG, UEQ and DEQ?

  • Hi,

    1. The typical RX design of AC coupling capacitor output and the principle of EVB are both 330nF, but the BOM of EVB(TUSB1044RNQEVM) is 220nF, please help confirm the specific size.

    Please see below application block diagram

    But you are right that URX1 and URX2 capacitors need to be 0.33uF.

    2, do not use DP function, AUX and SUB pins can be suspended?

    SBU pin can be floating, AUXP needs to be pulled to ground through 100k resistor, and AUXN needs to be pulled to 3.3V through 100k resistor. 

    3. What is the default gain of CFG, UEQ and DEQ?

    The default gain depends on external 4-level configuration of CFG, UEQ, and DEQ.

    Thanks

    David