TPA6120A2 Tiny headphone amplifier pcb GB - diyAudio
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Old 18th April 2015, 06:16 AM   #1
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Default TPA6120A2 Tiny headphone amplifier pcb GB

I am offering a GB for tiny headphone amplifier PCB based on TPA6120A2 QFN version. PCB measures 38 mm x 27 mm. The schematic is as per data sheet. The headphone amp is well suited for PCM5242 DAC. The parts will cost $11.6 from digikey. Here is the digikey bom.

Pcb cost - $6
Registered airmail shipping - $10
Paypal fees - $2

Shipping charge remains same for multiple board purchase but paypal fees will be $2 for each board purchase. For two boards pcb -$12, shipping - $10, paypal fees - $4

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Old 19th April 2015, 04:59 PM   #2
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Have you built a prototype yet? Are you aware och the input bias currents of 12 uA? Could create offset problems.
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Group buy Pavel Dudeks excellent LM4780 based amp No pcb's left.
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Old 19th April 2015, 05:46 PM   #3
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Yes I have built a prototype. I am aware of what you are talking about. I am not using any input buffer for this one. I am primarily using this with a pcm5242 dac as given in TIs EVM.
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