https://e2e.ti.com/support/audio-group/audio/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635050/tpa3255-the-capacitor-at-the-pvdd-terminal-is-burned-out/6304613Sat, 11 Apr 2026 06:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5c9e3a21-ca2d-4a16-a8bc-d2eab999ab08Pham ButHi, have you checked the snubber circuit for me yet?https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635050/tpa3255-the-capacitor-at-the-pvdd-terminal-is-burned-out/6304612Sat, 11 Apr 2026 06:27:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b900792e-e523-42db-a882-fd305c90a806Wenbin Li1Hi Pham, normally, the C31/C34 is necessary. but it is only for performance, absence of them will not have function issue. this is just used for test to try to find the root cause. Br, Wenbinhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634609/pcmd3180-q1-how-to-configure-the-device-tree-for-pcmd3180-in-thor-linux-6-8/6304588Sat, 11 Apr 2026 03:22:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c805179d-18ff-4fb5-b6cd-cc5e4ed0171dhangxiang guohttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634609/pcmd3180-q1-how-to-configure-the-device-tree-for-pcmd3180-in-thor-linux-6-8/6304585Sat, 11 Apr 2026 02:31:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9931ceba-d6f7-4ac2-95ca-af0a46a372e7hangxiang guoAfter modifying two registers, the test still showed no waveform.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635467/tas5414c-about-pbtlSat, 11 Apr 2026 01:32:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f80c6013-18fc-4433-98c4-992dac4ce7eeTao_2199Part Number: TAS5414C Hello, My customer is asking about PBTL on TAS5414C. Their requirement items are following. Power supply: 13V Output(Mono) : 60W (THD+N 1%), 4ohm They are considering adding an extra connection as a PBTL to unused output channel to increase the output power.(Below) Is this device supported with above connection? If so, can this device meet their requirements? Regards, Tao_2199TAS5414Chttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635275/tlv320aic3120-switching-between-i2s-playback-and-digital-microphone-recording-on-the-same-din-pin/6304573Sat, 11 Apr 2026 00:29:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1c3d383e-f80d-4cb0-91c6-f59a19c8c02dMir JeffresHi, I will need to write out an example register configuration on Monday, sorry about the delay. I can then test it later in the week. The chip should support this with just register writes. If the clocks stay the same, there will be no issues with PLL or dividers. We will just turn off the DAC, turn on the ADC with digital mic input, and it should be okay to run as is. The clocking settings can be set at initialization for both ADC and DAC without ADC being on. The analog switch question may be up to the MCU and its possibilities, not the codec. I believe it should work if there is no signal on DOUT (at 0V) and there is signal from the dig mic, then that will be fine. Same for if there is no signal from dig mic (normally at 0V) and there is signal from DOUT. You would run into issues if the output that is not active is set high, then when they are added together the output will always be high and sometimes twice the high level which could cause damage to the device. There is always a chance for pops when stopping and starting audio systems. If you are worried about it, I would recommend through I2C muting the DAC and then doing the switch to ADC, then unmuting the input and vice versa for switching from ADC to DAC. There may still be a small pop when muting and unmuting but it will not be more than the AVDD. Best, Mirhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1598907/pcmd3140-pcmd3140-vad-interrupts-cease-to-be-generated-during-the-active-recording-phase-pwr_cfg-0x61-despite-bit-3-of-the-vad_cfg2-register-being-set-to-enable-vad/6304566Sat, 11 Apr 2026 00:11:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:659f90f6-8f9e-4796-8c37-7b2b14864d79Mir JeffresHi, You will need one of them masked to receive the interrupt. However, with 4 mics, I can test this on my setup again. I will be back in the office on Tuesday so I can check then. Sorry about the delay here!! Are you still monitoring channel 1 for activity? Or can you try monitoring channel 3 with register VAD_CFG1 bits 5-4? You can only monitor one &quot;channel&quot; for VAD, but I know that typically if one mic is off in the PDM pair, both channels may have the same signal. One more note that I discovered - in the VAD app note ( https://www.ti.com/lit/an/sbaa490a/sbaa490a.pdf ) we see that there is just one Dig mic path into the VAD... so there is a chance that you can only measure from one set of dig mics (unlike ADC, where we see two ADCs and two sets of CIC filters) Can you try shorting your mic signals together to combine them into one channel?? Or you can apply a LPF to convert your digital mic into analog mic and send over the PGA? Best, Mirhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634040/taa3040-changing-hpf-setting/6304521Fri, 10 Apr 2026 22:37:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b4f98ba0-3ea5-4907-a546-3b789db284a2Garret GodfreyHi Adam, Thank you for your observation. I will investigate this next week. Let me know if you find anything else. Best, Garrethttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1633661/tas5782m-request-for-tas5782m-ppc3-plug-in-access-custom-high-power-boombox-project/6304455Fri, 10 Apr 2026 21:46:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:3f2cc303-5397-44a3-a03b-601c01543490Nayeem MahmudHi Alex, I have checked internally and the reason for denial is your MyTi account email address needs to be your work email. duck.com email addresses are automatically denied as they are free/personal email domain.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635368/purepathstudio-did-not-receive-access/6304452Fri, 10 Apr 2026 21:44:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:471d5788-11d7-4a44-8166-e9d7b822a57eNayeem MahmudHi Mykola, I have checked internally and the reason for denial is your MyTi account email address needs to be your work email. ukr.net email addresses are automatically denied as they are free/personal email domain.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634439/opa1612-opa1612-input-output-vs-power-supply-requirement/6304327Fri, 10 Apr 2026 19:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:69b66261-f85d-44dd-8992-bdb8551261e1Chris FeatherstoneHi Kelly, The OPA1612 can be operated using a single supply voltage. To maintain linear operation, the common mode input range must stay within Vee + 2V and Vcc - 2V. On a single supply this means the total common mode voltage (AC and DC) would need to be anywhere from 2V to 8V. In a 10V single-supply configuration, the input common mode voltage ideally would be biased to mid supply (5V). AC coupling can be implemented at the output of the operational amplifier to block the 5V DC offset from the subsequent signal stage. The circuit Alex provided accommodates the frequency range that is required. I added a 50pF cap in the feedback for stability reasons. I also AC coupled the input such that the 5V bias seen at the inverting terminal is maintained along with the output. One other point I should mention is that although the OPA1612 has very low voltage noise, special attention should be made in this circuit when the current noise interacts with impedances in the design. The current noise on the OPA1612 is higher than JFET and CMOS counterpart devices. For this reason I might suggest using the OPA1656 for this design. Let us know if you have any questions. For further details on the op amp attenuator circuit please see our Application Note here: https://www.ti.com/lit/an/sboa283/sboa283.pdf?ts=1775849948276&amp;ref_url=https%253A%252F%252Fwww.google.com%252F e2e.ti.com/.../OPA1612-input-output-E2E-_2800_1_2900_.TSC Best Regards, Chris Featherstonehttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634609/pcmd3180-q1-how-to-configure-the-device-tree-for-pcmd3180-in-thor-linux-6-8/6304154Fri, 10 Apr 2026 16:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0603e0e5-8cfb-400c-97fa-a7d072f417fbGarret GodfreyHi Hangxiang, First you must enable the inputs and output slots: Register 0x73 = 0xff Register 0x74 = 0xff Best, Garrethttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634775/pcm6240-q1-schematic-review-and-software-setting/6304125Fri, 10 Apr 2026 16:44:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ba105273-f266-4c00-8ea3-1bec867752f0Garret GodfreyHi Kenneth, The input signal swing is not defined by MICBIAS - Vcm. MICBIAS and Rext simply set a Vcm that aims to set below MICBIAS and keep the input signal swing within the ratings of the inputs pins. The goal of Vcm is such that the input signal does not clip. Setting a Vcm too low can cause the signal to clip below 0V. I do not think that a 100kOhm MICBIAS resistor is a good idea - it is not often this high value for this application and will not tolerate any input greater than 1Vrms (where the single-ended full-scale is 5Vrms). I suppose it is possible but only if the input will never exceed 1Vrms max (-14 dBFS). Best, Garrethttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1633158/tpa6133a2-question-about-the-tpa6133a2/6304052Fri, 10 Apr 2026 15:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0c426f20-b6c6-4429-acc2-00f580a948fbPeter Wu5Hi Ryu, Sorry for waiting, I will reply by next working day. Thanks.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635033/tas2563-tas2568ycgr-schmatic-review/6304047Fri, 10 Apr 2026 15:47:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:613f8c5e-74a1-4210-979b-1126574dabe6Peter Wu5Hi Allen, I will reply by next working day. Thanks.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634040/taa3040-changing-hpf-setting/6304043Fri, 10 Apr 2026 15:44:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c803bde4-d831-4d7b-9a02-e1b1b8dafea4Adam GarstoneJust using a low frequency square wave. With the all pass it&#39;s square (!) but obviously the HPF &#39;droops&#39; the top and bottom of the signal. Similarly, change the DC level of the input signal in all pass and the output DC level changes – change DC level in HPF and the output doesn&#39;t change.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635368/purepathstudio-did-not-receive-access/6304018Fri, 10 Apr 2026 15:29:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1155329b-0702-4dde-ae90-6ef6e25a2f91Nayeem MahmudHi Mykola, We are looking into this internally and will grant you the access shortly.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635368/purepathstudio-did-not-receive-accessFri, 10 Apr 2026 14:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:943d41cd-f5af-45a1-b28a-24ad0484acb8Mykola TyshchenkoPart Number: PUREPATHSTUDIO Other Parts Discussed in Thread: PUREPATHCONSOLE , TAS5508C I think it&#39;s a mistake not to grant me access, since I have your products (tas5508c) and I need this program(purepathconsole) to calculate biquadsPurePathStudioTAS5508CPUREPATHCONSOLEhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1634040/taa3040-changing-hpf-setting/6303881Fri, 10 Apr 2026 14:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7bade42b-ea31-48ec-9479-2a553a2e15f8Garret GodfreyHi Adam, How are you measuring the effect of the HPF? Can you send any filter response plots you may have taken that show this issue? Best, Garrethttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1631511/pcm6260q1evm-pdk-channels-1-and-2-don-t-show-up-on-esp32-s3-via-external-asi/6303867Fri, 10 Apr 2026 14:01:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6a3ad9be-6df3-428f-8b7d-5d709b477fa1Garret GodfreyYou&#39;re welcome, Cesar.