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Merni lanac za DIY audio
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Teorijska analiza izlaznog signala idealnog FDA rezultira potpunim poništavanjem parnih harmonika.
Međutim, u slučaju realnog FDA, merenja pokazuju slabljenje od samo 6dB (THS4141 na 1MHz):
https://www.ti.com/lit/an/sloa054e/sloa0...e.com%252F
(v. str. 6).
Bilo bi za očekivati da je poništavanje na 1kHz efikasnije.

Tolerancija otpornika je sigurno značajan faktor ako se traži perfektna simetrija (moji su bili klase 0,1%), ali mi to ne objašnjava loš rezultat sa OPA862 jer kod njega nisam koristio spoljašnje otpornike, već samo dva interna kod kojih sam očekivao da su laserski trimovani na bolje od 0,1%.
Kod INA1620 interni otpornici su upareni na 0,004% - takvih nema u prodaji.

Upravo sam video da TI od nedavno nudi prazne EVM pločice za FDA po ceni od 20 $, što i nije mnogo za četvoroslojnu pločicu.
Spremam porudžbinu...
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Messages In This Thread
Merni lanac za DIY audio - by Braca - 06-17-2017, 11:57 AM
RE: Merni lanac za DIY audio - by BeliNinja - 06-17-2017, 12:12 PM
RE: Merni lanac za DIY audio - by Braca - 06-17-2017, 12:24 PM
RE: Merni lanac za DIY audio - by Gosha - 06-19-2017, 11:56 AM
RE: Merni lanac za DIY audio - by Braca - 06-18-2017, 05:26 PM
RE: Merni lanac za DIY audio - by Gosha - 06-19-2017, 11:53 AM
RE: Merni lanac za DIY audio - by Braca - 06-19-2017, 12:35 PM
RE: Merni lanac za DIY audio - by Gosha - 06-20-2017, 07:43 AM
RE: Merni lanac za DIY audio - by mikikg - 06-19-2017, 10:26 PM
RE: Merni lanac za DIY audio - by mikikg - 06-20-2017, 01:20 AM
RE: Merni lanac za DIY audio - by Braca - 06-20-2017, 12:00 PM
RE: Merni lanac za DIY audio - by Gosha - 06-20-2017, 01:13 PM
RE: Merni lanac za DIY audio - by vladd - 06-20-2017, 02:45 PM
RE: Merni lanac za DIY audio - by Braca - 06-20-2017, 10:10 PM
RE: Merni lanac za DIY audio - by Braca - 06-22-2017, 08:58 AM
RE: Merni lanac za DIY audio - by Bocko - 06-22-2017, 01:33 PM
RE: Merni lanac za DIY audio - by Braca - 06-22-2017, 08:02 PM
RE: Merni lanac za DIY audio - by Braca - 06-25-2017, 01:13 PM
RE: Merni lanac za DIY audio - by Braca - 06-27-2017, 05:14 PM
RE: Merni lanac za DIY audio - by Braca - 07-01-2017, 01:28 PM
RE: Merni lanac za DIY audio - by vladd - 07-01-2017, 03:41 PM
RE: Merni lanac za DIY audio - by Braca - 07-01-2017, 05:33 PM
RE: Merni lanac za DIY audio - by vladd - 07-01-2017, 09:01 PM
RE: Merni lanac za DIY audio - by Braca - 07-02-2017, 12:39 PM
RE: Merni lanac za DIY audio - by Braca - 07-03-2017, 04:17 PM
RE: Merni lanac za DIY audio - by Braca - 07-03-2017, 09:20 PM
RE: Merni lanac za DIY audio - by BeliNinja - 07-03-2017, 09:26 PM
RE: Merni lanac za DIY audio - by Braca - 08-12-2017, 08:54 PM
RE: Merni lanac za DIY audio - by vladd - 08-13-2017, 07:57 AM
RE: Merni lanac za DIY audio - by Braca - 08-13-2017, 12:02 PM
RE: Merni lanac za DIY audio - by Braca - 05-04-2020, 12:10 PM
RE: Merni lanac za DIY audio - by Braca - 05-07-2020, 11:10 AM
RE: Merni lanac za DIY audio - by Braca - 05-20-2020, 05:44 PM
RE: Merni lanac za DIY audio - by gorso69 - 02-24-2021, 10:13 AM
RE: Merni lanac za DIY audio - by Braca - 02-24-2021, 03:59 PM
RE: Merni lanac za DIY audio - by gorso69 - 02-24-2021, 04:29 PM
RE: Merni lanac za DIY audio - by Braca - 02-24-2021, 05:04 PM
RE: Merni lanac za DIY audio - by gorso69 - 02-25-2021, 12:09 AM
RE: Merni lanac za DIY audio - by Braca - 02-25-2021, 08:44 AM
RE: Merni lanac za DIY audio - by gorso69 - 02-25-2021, 06:35 PM
RE: Merni lanac za DIY audio - by Braca - 02-26-2021, 10:21 AM
RE: Merni lanac za DIY audio - by gorso69 - 02-26-2021, 07:45 PM
RE: Merni lanac za DIY audio - by Braca - 02-27-2021, 08:41 AM
RE: Merni lanac za DIY audio - by gorso69 - 02-28-2021, 04:18 PM
RE: Merni lanac za DIY audio - by Braca - 03-01-2021, 07:18 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-01-2021, 08:02 PM
RE: Merni lanac za DIY audio - by Gosha - 03-02-2021, 04:05 PM
RE: Merni lanac za DIY audio - by Dragan100 - 03-01-2021, 08:22 PM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 08:51 AM
RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 09:30 AM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 10:45 AM
RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 11:25 AM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 12:52 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 05:12 PM
RE: Merni lanac za DIY audio - by Gosha - 03-02-2021, 06:23 PM
RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 07:36 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-04-2021, 12:57 PM
RE: Merni lanac za DIY audio - by Gosha - 03-04-2021, 05:36 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-06-2021, 03:23 PM
RE: Merni lanac za DIY audio - by Braca - 03-06-2021, 03:53 PM
RE: Merni lanac za DIY audio - by Braca - 03-09-2021, 09:51 AM
RE: Merni lanac za DIY audio - by gorso69 - 03-29-2021, 01:36 PM
RE: Merni lanac za DIY audio - by Braca - 03-29-2021, 07:43 PM
RE: Merni lanac za DIY audio - by gorso69 - 03-29-2021, 08:44 PM
RE: Merni lanac za DIY audio - by Braca - 04-02-2021, 10:40 AM
RE: Merni lanac za DIY audio - by gorso69 - 04-02-2021, 01:45 PM
RE: Merni lanac za DIY audio - by Braca - 04-02-2021, 02:38 PM
RE: Merni lanac za DIY audio - by gorso69 - 04-03-2021, 06:57 PM
RE: Merni lanac za DIY audio - by Braca - 04-04-2021, 11:12 AM
RE: Merni lanac za DIY audio - by gorso69 - 04-04-2021, 12:01 PM
RE: Merni lanac za DIY audio - by Braca - 04-04-2021, 12:47 PM
RE: Merni lanac za DIY audio - by gorso69 - 04-04-2021, 01:25 PM
RE: Merni lanac za DIY audio - by Braca - 05-22-2021, 11:54 AM
RE: Merni lanac za DIY audio - by Dragan100 - 05-26-2021, 01:11 PM
RE: Merni lanac za DIY audio - by Braca - 05-26-2021, 03:22 PM
RE: Merni lanac za DIY audio - by Braca - 05-30-2021, 01:22 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-15-2021, 06:22 PM
RE: Merni lanac za DIY audio - by Braca - 07-16-2021, 01:32 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-16-2021, 09:36 PM
RE: Merni lanac za DIY audio - by Braca - 07-17-2021, 03:02 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-17-2021, 06:30 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-27-2021, 12:46 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-27-2021, 01:00 PM
RE: Merni lanac za DIY audio - by Braca - 07-27-2021, 06:48 PM
RE: Merni lanac za DIY audio - by gorso69 - 07-28-2021, 03:30 PM
RE: Merni lanac za DIY audio - by Braca - 07-29-2021, 09:19 AM
RE: Merni lanac za DIY audio - by gorso69 - 08-01-2021, 05:55 AM
RE: Merni lanac za DIY audio - by Braca - 08-01-2021, 09:52 AM
RE: Merni lanac za DIY audio - by Braca - 08-08-2021, 03:09 PM
RE: Merni lanac za DIY audio - by Braca - 08-09-2021, 11:20 AM
RE: Merni lanac za DIY audio - by Braca - 09-09-2021, 01:04 PM
RE: Merni lanac za DIY audio - by Braca - 09-16-2021, 10:09 AM
RE: Merni lanac za DIY audio - by Bocko - 09-16-2021, 03:36 PM
RE: Merni lanac za DIY audio - by Braca - 09-16-2021, 04:12 PM
RE: Merni lanac za DIY audio - by Braca - 09-17-2021, 12:10 PM
RE: Merni lanac za DIY audio - by Khadgar2007 - 09-17-2021, 09:13 PM
RE: Merni lanac za DIY audio - by Braca - 09-18-2021, 09:56 AM
RE: Merni lanac za DIY audio - by Braca - 12-24-2021, 03:56 PM
RE: Merni lanac za DIY audio - by Braca - 01-15-2022, 11:12 AM
RE: Merni lanac za DIY audio - by Braca - 01-23-2022, 07:19 PM
RE: Merni lanac za DIY audio - by Braca - 04-06-2022, 04:46 PM
RE: Merni lanac za DIY audio - by Braca - 08-14-2022, 05:46 PM
RE: Merni lanac za DIY audio - by Braca - 08-15-2022, 10:39 AM
RE: Merni lanac za DIY audio - by Vlajko - 08-16-2022, 01:29 AM
RE: Merni lanac za DIY audio - by Braca - 08-16-2022, 09:35 AM
RE: Merni lanac za DIY audio - by Braca - 09-19-2022, 05:26 PM
RE: Merni lanac za DIY audio - by ddanijel - 09-20-2022, 10:42 AM
RE: Merni lanac za DIY audio - by Dragan100 - 09-19-2022, 10:40 PM
RE: Merni lanac za DIY audio - by Аритон - 09-20-2022, 12:00 AM
RE: Merni lanac za DIY audio - by BeliNinja - 09-20-2022, 06:57 AM
RE: Merni lanac za DIY audio - by Braca - 09-20-2022, 08:33 AM
RE: Merni lanac za DIY audio - by Braca - 09-25-2022, 04:12 PM
RE: Merni lanac za DIY audio - by Dragan100 - 09-25-2022, 05:13 PM
RE: Merni lanac za DIY audio - by Braca - 10-29-2022, 11:11 AM
RE: Merni lanac za DIY audio - by Braca - 12-09-2023, 11:10 AM
RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 12:00 PM
RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 12:01 PM
RE: Merni lanac za DIY audio - by Braca - 12-09-2023, 12:57 PM
RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 01:05 PM
RE: Merni lanac za DIY audio - by Braca - 01-22-2024, 05:47 PM

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