Add TPA6130A2RTJ

[adamheinrich]

Stereo headphone amplifier with I2C volume control by TI.

There are two versions of the IC (BGA and QFN), this only includes the RTJ (WQFN-20) footprint.

I deliberately renamed pins LEFTINP/LEFTINM to LIN+/- and RIGHTINP/RIGHTINM to RIN+/- for clarity.

Also, pins 12 (AVDD) and 3, 9, 10, 13 (AGND) are called Vdd/GND in the datasheet but the datasheet clearly says they are Analog power/ground so I renamed them to distinguish them from pins 20 (Charge pump Vdd) and 19 (Charge pump GND).

Datasheet: http://www.ti.com/lit/ds/symlink/tpa6130a2.pdf

Associated footprint PR: KiCad/kicad-footprints#1471

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[myfreescalewebpage]

Hi @adamheinrich , thanks for contributing,

A few comments I have during my review:

• Datasheet indicates that pins 3, 9, 10, 13, 21 (called AGND for you) must be connected to GND, so I suggest to stack them with pin 19.
• Name of pins 1, 2, 4, 5 should be set according to the datasheet even if I understand your proposition, this is to avoid confusion for other user in the future. Increase size of the device vertically to achieve this.

Else, good design and good initiative for name of pin 12.

Cheers,
Joel

[adamheinrich]

Hi @myfreescalewebpage, I grouped all grounds together and renamed pinds 1, 2, 4, 5 as you requested: 2bc02b0

Instead of resizing the device vertically, I put the I2C pins on top -- is that correct?

[myfreescalewebpage]

Thanks @adamheinrich that's ok for me like that, just need to wait the footprint now.

[myfreescalewebpage]

No news of the author on the footprint generator PR, indicate this is Abandoned