https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1683923/tusb8041-10-port-usb-hub-needed/6489713Mon, 21 Sep 2026 15:09:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:2cf3bcd8-1a2b-4198-99b9-3b4e290b7b6bTajwar ChandelHi @Ryan, Thanks for the reply. Kindly share the recommended a suitable solution for USB Hub IC/solution that supports the following requirements: 10 USB downstream ports Individual enable/disable control for each USB port Ability to reboot/reset the USB Hub Suitable control and monitoring mechanism for the individual ports Enable Device Attach Detection.. Along with the recommended solution, kindly share the following for our initial development: Recommended USB Hub IC / Part Number Block Diagram Reference Schematic Reference Design / Application Circuit , if available Evaluation Kit (EVK) / Development Board details (mouser /digikey link) Your guidance in selecting the appropriate device and reference design will help us proceed with the initial hardware development. Regards,https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1683923/tusb8041-10-port-usb-hub-needed/6489680Mon, 21 Sep 2026 14:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1a75e351-bc54-4690-8772-078c9d11fe26Ryan KittoHello, We do not have any 8-port or 10port USB3 Hubs. We only have two port or four port USB3 devices. If acceptable, we can recommend a solution of utilizing multiple hubs to create an eight port solutions. Otherwise, we do not have any standalone eight-port hubs. Thanks, Ryanhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1683923/tusb8041-10-port-usb-hub-neededMon, 21 Sep 2026 08:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d1c0e381-e799-499e-a04b-e0d21f68abb2Tajwar ChandelPart Number: TUSB8041 Hi Team, We are working on a new project that requires an 8-port or 10-port USB Hub IC . During our initial evaluation, we came across the TUSB8041 Four-Port USB 3.0 Hub , which supports only four USB ports. Therefore, we are looking for a suitable IC that can support 8 or 10 USB ports . Could you please suggest a relevant part number that meets this requirement, along with the corresponding Evaluation Kit (EVM/EVK) , so that we can use it for our initial development and evaluation? Please also share the relevant datasheet and EVK details , if available.TUSB8041https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682955/tmux6222-tmux6222-interfaced-with-class-d-amplifier/6488358Fri, 18 Sep 2026 15:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c38ff5b4-7606-4afd-8011-e47ab9b253c0Arya HusseinHi Steven, Yes, it does look like during that cycle time the signal exceeds the TMUX6222 VDD + diode forward voltage. So from that it does look like it can be the issue you are seeing. Would you be able to add a series resistor/diodes in the path? Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1683188/tpsm843320-differences-between-tpsm843320sitr-and-tpsm843320msitr/6487382Thu, 17 Sep 2026 19:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:29229d05-11ce-4af1-8244-26afc46b1206Jonathan HumphriesHi John, Good questions. The TPSM843320M is the &quot;Extended Temperature Range&quot; version of the TPSM843320. Both devices share the same die. For the &quot;Vin throttle falling threshold&quot;, In the TPSM843320, the Vin rising threshold is spec&#39;d, but in the TPSM843320M, the Vin falling threshold is spec&#39;d. I suspect that the difference between these two thresholds are due to hysteretic reasons. I&#39;m unfortunately not totally sure why the datasheets spec a different parameter since they share the same die. The reason for the different EN pin current in figure 5.6 is due to one of the graphs being taken when EN was below the EN threshold, and the other being taken when EN was above the threshold. The EN pin has 2 current sources, where one of them only turns on after EN has crossed the threshold, hence the difference. Please let me know if you have any other questions. Thanks, Jonathanhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682955/tmux6222-tmux6222-interfaced-with-class-d-amplifier/6487259Thu, 17 Sep 2026 17:51:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e4ddb137-8666-4bde-911d-905ecd920d43Steven MooreHi Arya, As I stated in my original message, yes, I do see overs lasting about 40 nS once every cycle. But they are in the 0.75 V range, so it doesn&#39;t seem that the protection diodes are clamping the signal. Do you think that could cause what I&#39;m seeing?https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682955/tmux6222-tmux6222-interfaced-with-class-d-amplifier/6487229Thu, 17 Sep 2026 17:31:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ec1ec6a0-6622-4c40-bb80-58975532535eArya HusseinHi steven, When the voltage is outside of the power supply it does look like it is causing the internal diode to conduct. Would you be able to verify if the I/O pins voltage does not exceed that of VCC? Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1683188/tpsm843320-differences-between-tpsm843320sitr-and-tpsm843320msitrThu, 17 Sep 2026 11:45:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9cc67438-3aaf-41a5-99d4-72cb5abc1941John SchumacherPart Number: TPSM843320 The main difference I see is the TPSM843320SITR has an operating temperature of -40&#176;C to +125&#176;C. The TPSM843320MSITR has an operating temperature of -55&#176;C to +125&#176;C. I also see a difference for &quot;VIN throttle falling threshold&quot; under Power Stage section in datasheet. The TPSM843320SITR is 15.7 V min and 16.3 V max. The TPSM843320MSITR is 15.2 V min and 15.8 V max. And Figure 5.6, Enable pin curent, is different. TPSM843320SITR is about 1.6 uA and TPSM843320MSITR is about 11.5 uA. Do the two parts share the same die? Or are they different? Why is there a difference between the two parts for VIN throttle falling threshold and Enable pin curent? Compare Report tpsm843320e.pdfTPSM843320ETPSM843320https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682955/tmux6222-tmux6222-interfaced-with-class-d-amplifierThu, 17 Sep 2026 00:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:27b90b6c-8484-48e3-ab09-28325d483bf8Steven MoorePart Number: TMUX6222 In my application, a spread spectrum class D amp&#39;s BTL outputs (rail to rail, 9V supply) are connected to both its load, and to a dual analog switch. When the amp is active, the switches (TMUX6222) are selected as OFF. When the amp is disabled via the shutdown pin, the switches are selected as ON. When the switches are OFF, there is baseband bleed to the switch outputs which is far larger than the device capacitance could cause. It appears to be entirely common mode. There is also a DC level at the outputs of the amp, only if the amp is being modulated, which is directly proportional to the baseband input amplitude. It&#39;s possible that the protection diodes in the TMUX6222 are activating, but the DC level proportional to baseband input is puzzling. There is a bit of overshoot in the amp&#39;s outputs, but only for 40 ns, and the amplitude of this overshoot does not give the indication that the protection diodes are conducting (I&#39;m getting 0.75V.) So the question is whether this is a likely scenario if the inputs are very briefly overloaded, and what is the mechanism for the TMUX to pass DC back to the amp output? It almost seems that the TMUX is demodulating the PWM/ FM signal and rectifying it. Schottky diodes and series resistors are being placed to bypass the internal diodes in the next revision, in case the overshoot is causing this issue. But they may not be any faster. BTW- the amp is the (AD) MAX9768. I&#39;m posting on their forum as well. Below is a partial schematic attached which shows the arrangement.Portable ElectronicsTMUX6222https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682073/tmuxhs4212-connection-of-rsvd-pins/6484307Tue, 15 Sep 2026 19:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6c0b54af-833c-43d4-9674-db1626219df0Arya HusseinHi Miroslav, I have requested to see if the documents can be fixed to remove the contradiction in the supporting documents. Yes in the EVM I would input VCC to the test points for RVSD pins. Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682073/tmuxhs4212-connection-of-rsvd-pins/6484089Tue, 15 Sep 2026 16:33:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:28764e20-4d48-4bbb-bfce-b2e36bfaa237Miroslav KuzmanovicHi Arya, Thank you for reply. Issue is that data sheet is not fully updated. On the page 19, 11.2 Layout Example still shows pins 1 and 10 as NC which contradicts with the table shown earlier. Company as respectable as TI should maintain published documentation and promptly fix errors in the data sheets/ application notes. Do you propose to connect these pins directly to VCC ()via to power plane) or through resistors? Also what shall be done on EVM board that has these two pins connected to test points? Shall we wire the test points to VCC? Best Regards Miroslavhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682073/tmuxhs4212-connection-of-rsvd-pins/6483910Tue, 15 Sep 2026 14:29:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0ce1efe5-2d10-4e46-9cbd-8372bb6a10c1Arya HusseinHi Miroslav, The Datasheet was updated to show the RSVD pins connected to VDD (PCN20220506000), but not the other supporting documentation was changed to show case this. When these are left NC, the MUX will enter TI test mode by switching the SEL pin 13 times. To avoid this scenario you would want to connect them to VDD. Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1681880/cd74hc4053-noise-in-a-synchronous-demodulator-using-the-cd74hc4053/6483856Tue, 15 Sep 2026 13:33:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:aeb8d256-6011-4b35-9bbe-d0b9ab9379b6Arya HusseinHi Haya, You can get some TMUX4053 material from the TI.com page: Here Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1681880/cd74hc4053-noise-in-a-synchronous-demodulator-using-the-cd74hc4053/6483053Tue, 15 Sep 2026 01:16:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:79df175e-780b-499d-a6e8-99a495162ff1Haya KHi Arya, Thank you for your advice regarding the cause. I&#39;d like to get my hands on a TMUX4053 die. Could you tell me how to get one? Regards, Hayahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682073/tmuxhs4212-connection-of-rsvd-pins/6482781Mon, 14 Sep 2026 19:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:715322e3-cab0-4330-a142-7c8aedcd02d6Miroslav KuzmanovicHi Arya, Thank you for the prompt reply. However, is that certainly correct? This info contradicts both Schematic Checklist for TMUXHS4212EVM and TMUXHS4412EVM and design of the EVM. Pads are only connected to the test point on EVM and there are no notes in the User&#39;s guide about need to connect them to anything. I guess someone tested EVM at this point and would notice if device is going into test mode? Is there any way to get some certainty about this issue? Best Regardshttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682073/tmuxhs4212-connection-of-rsvd-pins/6482620Mon, 14 Sep 2026 17:36:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:16724f4d-ab16-4cb0-8b17-94b0f60b947aArya HusseinHi Miroslav, You would want to connect these pins to VDD, as leaving them could cause the device to enter test mode. Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1681948/tmux1574-required-technical-parameters-for-mpn-tmux1574rsvr/6482604Mon, 14 Sep 2026 17:22:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:66fdb177-24a4-4e39-b26c-b7c47e64780fArya HusseinHi Bill, The current will be 50nA. Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1681944/tmux136-required-technical-parameters-for-mpn-tmux136mrser/6482602Mon, 14 Sep 2026 17:19:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e2c79850-eaaf-491e-a361-34d46f614c71Arya HusseinHi Bill, 1. 150C 2. 10.4mW Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1681880/cd74hc4053-noise-in-a-synchronous-demodulator-using-the-cd74hc4053/6482576Mon, 14 Sep 2026 17:05:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0d2d0a9d-3a06-403e-ac07-eec465793950Arya HusseinHi Haya, It looks like Maximum switch delay could be the issue here ( Break before make) . It does however look like the device seems do a better job in isolation compared to previous die. Some device that look to be a good alternative would be the TMUX4053 . Thank you, Aryahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1682073/tmuxhs4212-connection-of-rsvd-pinsMon, 14 Sep 2026 16:52:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:56f52d43-35fc-41af-bc30-728ab999f202Miroslav KuzmanovicPart Number: TMUXHS4212 Other Parts Discussed in Thread: TMUXHS4412EVM There is a conflicting data in the data sheet for the part. In table 5-1 (Pin Functions) pins RSVD1 and 2 are describer as: Reserved Pins. Connect both to Vcc. However, in layour example both pins are NC and not routed out. Also in scxhematic checklist, they are described as Resewrved Leave Open. On EVM scxhematic both pins are connected to tyest points and not Vcc. I plan to leave them not connected but would like to get a confirmation if that is correct choice. Also it makes sense to update the data sheet with proper description. Best RegardsTMUXHS4212TMUXHS4412EVMTMUXHS4212EVM