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TAS2560: TAS2560 - min PCB layer

Kelvin Tee
Genius 10035 points
Part Number: TAS2560


Hi

May i know min PCB layer required to lay TAS2560?
The EVM is 12 layer board.

Rgds
Kelvin

  • 0
    TI__Guru** 110925 points
    Hi Kelvin,

    Actually the EVM has a count of 6 copper layers, the rest of the layers show the silkscreen and other mechanical/fab guidelines.
    So a layer count of 6 would be good: 4 signal layers and 2 power layers.
    Going down to 4 layers would depend on the PCB fab process (via-in-pad, trace width) and how the internal signals can be routed out of the device.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators
  • 0 in reply to Ivan Salazar
    TI__Genius 10035 points

    Hi Ivan

    Customer is considering 4 layer board without buried via (via-in-pad) and blind via. All connected with trough hole with escape at concern layers. This mean all via is trough via and only connect at concern layers, no connect layer will be escape. Have you seen any users with 4 layer board? 

    Rgds
    Kelvin                               

  • 0 in reply to Kelvin Tee
    TI__Guru** 110925 points
    Hi Kelvin,

    I think I recall one revision I did that used 4-layer board but don't remember the details.
    Anyway, the most inner pads of the package include two NC pins as well as GND pins, so routing on 4-layer board should be possible.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators