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/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.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635316/tad5212-schematic-review/6303863Fri, 10 Apr 2026 13:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fedcc976-acfc-48bb-a93b-1dd25da1f411Garret GodfreyHi Stone, VREF should have a 1uF capacitor to GND, and should not be connected elsewhere in the design as a voltage source. I would also add pull-ups on SCL and SDA. Best, Garrethttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635050/tpa3255-the-capacitor-at-the-pvdd-terminal-is-burned-out/6303823Fri, 10 Apr 2026 13:20:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f969ad34-3016-4004-9c78-22f6bfef5fdePham ButHi, This is capacitor MPN CL21B104KCFNNNE I&#39;m not sure if the absence of capacitors C31 and C34 is the main cause, but in reality, I occasionally encounter ICs that constantly report errors, possibly due to ESDhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635312/tas2781-r_ds-on/6303775Fri, 10 Apr 2026 12:27:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:40f31c24-be21-4743-be29-4a322ee8c4cbWenbin Li1Hi the R_DS(on) of low power AMP will not show in the datasheet. and usually, it is not so important for the lower output. do you have any issue or concern which related to R_dson?https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1633175/lm49450-current-consumption-of-lm49450/6303755Fri, 10 Apr 2026 12:09:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:87bd7c14-7f51-4be9-ac64-ff6002bfd028Wenbin Li1Hi Maishalini T, usually, the current on IOVDD is very small, I think it should be less than 1mA. regarding the current on the output, it depends on the output power of speaker. for example, 1W@8ohm speaker, the peak current is sqrt(2*1/8)=0.5A Br, Wenbinhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635316/tad5212-schematic-reviewFri, 10 Apr 2026 12:02:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:486f1328-2f86-44d0-bf1c-c9a5fce598c1Stone ZengPart Number: TAD5212 Hi Team, my customer is using TAD5212 on PDA, could you help review the schematic as below Regards, StoneAppliancesTAD5212https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635312/tas2781-r_ds-onFri, 10 Apr 2026 11:44:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5cad0b88-a48b-41b5-88f6-245cb5c5d013switchPart Number: TAS2781 Hi ti team, What is the R_DS(on) of the high/ low side MOSFETs of the TAS2781?TAS2781Home theater &amp; entertainmenthttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1635050/tpa3255-the-capacitor-at-the-pvdd-terminal-is-burned-out/6303700Fri, 10 Apr 2026 11:24:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0ff90888-8e41-46b5-b42d-01effbb6458fWenbin Li1Hi Pham, Let&#39;s discuss the cap issue first. I never see such issue before. if you just remove the cap C31/C34 is there any function error happens? if not, can you test the signals on the PVDD in this case? I guess there is high frequency noise which is higher than the Self-Resonant Frequency of the CAP. in this case, can you change to a lower value CAP for test? such as 10nF? and please consult with capacitor vendor for more details. regarding the snubber design. I will check it and feedback to you later. Br, Wenbin