Diferential input audio preamplifier

Name: Diferential input audio preamplifier
SKU: 7123
Price: 1.00 USD
Availability: InStock
Rating: 5.00 (1 reviews)

(1 Review)

Diferential audio preamplifier for(example) bluetooth modules, requires only positive power source, no negative rail required

Designed by Tomas Kovacik in Slovakia

2016-04-18T08:20:08.810Z-IMG_20160317_003551.jpg

2016-11-16T12:47:08.438Z-assamble_plan.png

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Diferential audio preamplifier for(example) bluetooth modules, requires only positive power source, no negative rail required

Audio preamplifier with differential input for bluetooth modules based on OVC3860 chip, in my case: blk-md-spk-b S3860M-S XS3868 BK8000L I made this (based on online documentation, and reverssing f…

Audio preamplifier with differential input for bluetooth modules based on OVC3860 chip, in my case:

blk-md-spk-b
S3860M-S
XS3868
BK8000L

I made this (based on online documentation, and reverssing from pictures of discontinued product) just for easy development, becaose output ground of this modules can't be connected to power ground ( it has 0.9V offset, in case of OV3860 based modules)

also this could work with F-3188 BLE bluetooth 4.0 module based on CSR8645

It used 12V, I used NE5532 (no luck with LM358), but you can used whatever you want. Also I can populate it or give you parts.