https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1651876/tps54531-request-for-design-review-tps54531-3-7v-5a-for-rm520n-gl-loadWed, 03 Jun 2026 10:08:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:3832d408-4d54-41b3-8a74-d2c4f5aecdbamahesh pPart Number: TPS54531 Dear Sir &amp; Madam, I am currently designing a DC-DC buck converter using the TPS54531. My design specifications are: Input Voltage: 5V to 26V Output Voltage: 3.7V Output Current: up to 5A The load for this power supply is the RM520N-GL 5G module. As per the module datasheet, it is mentioned that “the continuous current capability of the power supply should be at least 3.0A.” I understand that the module may also draw higher transient (peak) current during transmission. I have prepared the schematic and BOM based on the TPS54531 datasheet and design guidelines. I have attached these documents along with the RM520N-GL datasheet for your reference. Could you please review my design and advise on the following: Is TPS54531 suitable for this application, considering the load current and transient requirements? Are the selected components (inductor, capacitors, feedback Resistor ) appropriate for stable operation? Any recommended changes in the circuit or BOM to improve performance, transient response, and thermal reliability? Your guidance will be very helpful in ensuring a robust design. Thank you for your support. Best regards, Mahesh.P TPS54531.pdf TPS54531DDAR_BOM.xlsx Quectel_RM520N-GL_Hardware_Design_V1.0 (2).pdfIndustrial AutomationTPS54531https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1650776/dac39j84evm-fpga-board-selectionSat, 30 May 2026 11:01:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f42f4720-b969-4dad-bc1b-a65803ea2899Ajeet RawatPart Number: DAC39J84EVM We are planning to buy DAC39J84EVM anlong with EK-U1-ZCU102-G FPGA Board for producing Arbitory/ Sine Wave Waveforms at upto 500MHz. Please advice Suitability. We are a startup Company with limited financial resources.DAC39J84EVMWireless Infrastructurehttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1645638/trf7970a-correct-command-sequence-to-read-tag-uid-using-iso-14443a-protocol/6364159Fri, 29 May 2026 14:00:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0146a609-5c57-454a-9b0d-c561c8e4029cRizwan MurjiHi Samantha, I hope all is well and apologies for the delay. Please not that this device has limited support but I will do my best to try and answer your question(s): Looking at your command sequence compared to the working forum example, there are several issues to address. Identified Problems 1. Wrong command parameter for A0 Your sequence uses A0 00, the forum&#39;s working sequence uses A0 01: Your: 0109000304 A0 00 0000 ← REQA only, no anticollision Forum: 0109000304 A0 01 0000 ← full REQA + anticollision loop The parameter 01 tells the DLP-RFID2 firmware to run the complete anticollision sequence and return the UID. Parameter 00 likely just fires REQA and leaves the firmware waiting for you to drive the anticollision manually — which explains why the module appears &quot;stuck&quot; afterward. 2. Wrong register values (0x22 and 0x08 vs 0x21 and 0x09) Register Your Value Forum working value 0x00 Chip Status 0x22 0x21 0x01 ISO Control 0x08 0x09 - Chip Status 0x22 vs 0x21: Bit 1 of reg 0x00 selects AM vs PM output drive. 0x22 (bit 1 set) enables AM mode; 0x21 (bit 0 set) is the correct mode for passive ISO 14443A tags. This is likely why your IRQ status comes back [00] — the RF output isn&#39;t modulating correctly so the tag never wakes up. - ISO Control 0x09 vs 0x08: Bit 0 of reg 0x01 appears to enable the single-slot/anticollision sub-mode needed for 14443A REQA to work end-to-end. 3. Missing two-step initialization The forum sequence writes to reg 0x01 alone first, receives the firmware&#39;s 14443A REQA acknowledgment (that string is the DLP-RFID2 firmware confirming mode entry — it is not the tag&#39;s ATQ), then writes both registers with the final values. Your sequence writes both registers in one shot before any confirmation, skipping this handshake. Corrected Command Sequence → 01080003042B0000 Enable external antenna → 010A0003041001210000 Write reg 0x01 = 0x21 (pre-configure ISO control, triggers firmware mode entry) ← &quot;14443A REQA&quot; DLP-RFID2 firmware acknowledgment (not a tag response) → 010C00030410002101090000 Write reg 0x00 = 0x21 (RF on, PM output mode) Write reg 0x01 = 0x09 (ISO 14443A 106 kbps, anticollision sub-mode) → 0109000304A0010000 A0 01 — run full REQA + anticollision, return UID ← [04152FB6422B1491EC,7F] UID Why your IRQ status was always [00] With 0x22 in Chip Status, the AM output mode is likely suppressing the RF field change that wakes a passive tag. No tag response → no RX interrupt → no TX-complete event logged to IRQ → [00] across the board. Fixing the Chip Status value to 0x21 should unblock everything upstream. I hope this helps. Thanks, Rizhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1640419/ri-trp-dr2b-failure-analysis-of-ri-trp-dr2b-40/6364109Fri, 29 May 2026 13:13:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:df5ca004-7a60-43fe-8ba3-79a68257dbb3Rizwan MurjiHi Kohei, This has been taken over email. Closing out. Thanks, Rizhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1650265/cc8530-cc8530-cc2592-range-issue/6362493Thu, 28 May 2026 13:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c9c2e171-319c-40d9-b3b9-c2fb1576d195Ryan Brown1Hi Srilakshmi, If you are using custom PCBs and not TI EVMs then the first thing I would suggest is to submit for a SIMPLELINK-2-4GHZ-DESIGN-REVIEWS . Next, have you confirmed through an oscilloscope or logic analyzer that the PA_EN, LNA_EN, and HGM pins are toggling as expected during radio operation and standby? You should triple-check your PUREPATH-WL-CFG to make sure that the CC2592 front-end is selected, the maximum output power is chosen, and that the correct pin connections are reflected. Are you observing similar performance when using the PUREPATH-WL-CMD to verify radio performance? Regards, Ryanhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1650265/cc8530-cc8530-cc2592-range-issueThu, 28 May 2026 11:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9dc5a551-9853-43e6-98de-72dbd8f88780Srilakshmi HPart Number: CC8530 Other Parts Discussed in Thread: CC2592 , Hi Team, The current implementation using CC8530 with CC2592 is exhibiting a communication range limitation of approximately 40 m under near line‑of‑sight conditions, which is significantly lower than the expected performance based on the device capabilities, Please guide how the Range can be improved ? Regards, Srilakshmi HSIMPLELINK-2-4GHZ-DESIGN-REVIEWSPUREPATH-WL-CMDIndustrial AutomationPUREPATH-WL-CFGCC2592CC8530https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647737/tms37145-allowed-lf-receive-frequency-range-min-max/6356120Fri, 22 May 2026 13:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:803cdc68-0863-45ee-9bf5-0a10b2d3be56Isaac LarsonHello Ryu, 1. Frequency range: 132.2kHz - 136.7kHz for a low bit transmit, and 120.2kHz - 126.7kHz for a high bit transmit at 25C. 2. FSK deviation is between 9kHz - 15kHz at 25C. Thanks, Isaachttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1642515/lm137hvqml-check-lead-post-gold-plating-thickness-of-part-utas50-00083-000-and-utas50-00082-000/6355359Fri, 22 May 2026 03:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4194bd93-d6f3-4bef-a0ed-2c8cdd67ecc5Nicholas AltmanHey Sinlin, Thanks for your patience. See below regarding the data you requested. According to our AT site, there is no maximum spec for the plating thickness. LM137H/883: Min= 1.27um LM137H: Min = 0.762um LM117H/883: Min = 1.27umhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647861/tms320f28069-powerline-communication-development-kits/6353276Wed, 20 May 2026 20:59:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:09cd41dc-e512-4545-baef-71ddb5f13f19greeneyehawkHi Peter, Thank you so much for the info! Best, PJhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647861/tms320f28069-powerline-communication-development-kits/6353269Wed, 20 May 2026 20:50:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:dbe16262-21b4-4837-b207-ca4d122ed071Peter LuongHi PJ, We also have this relatively recent design showcased here: https://www.ti.com/lit/ab/snoaab6/snoaab6.pdf Regards, Peterhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647861/tms320f28069-powerline-communication-development-kits/6353267Wed, 20 May 2026 20:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5571fbce-fd1d-4100-a5fa-c34305e702a4Peter LuongHi PJ, You should be able to reach out to the TI Customer Support with the contact information located here: https://www.ti.com/info/contact-us.html#contact-support-team with the explicit request for FAE / sales engineer. The boards we have are TMDSPLCKITV4-ARIB so you can refer to public information regarding this (obsolete) design for reference Regards, Peterhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647861/tms320f28069-powerline-communication-development-kits/6353245Wed, 20 May 2026 20:26:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:331442af-01a2-484d-86b7-620f4913ec04greeneyehawkHi Peter, Thanks for getting back. Who would be the best person to reach out to? We don&#39;t have access to a FAE / sales engineer for this at the moment. Best, PJhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647861/tms320f28069-powerline-communication-development-kits/6353186Wed, 20 May 2026 19:15:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a20d1017-a122-4b13-b2ea-4f1bd653a659Peter LuongHi PJ, Do you have access to an FAE / sales engineer? We have limited number of PLC kits for demonstration and software can only be provided through sales engineer Regards, Peterhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647861/tms320f28069-powerline-communication-development-kitsWed, 20 May 2026 16:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:571d28ea-f17d-4068-9e12-355fba992c55greeneyehawkPart Number: TMS320F28069 Hi, I was wondering if there are any active powerline communication development kits that provide networking protocols such as G3? Best, PJWired networkingTMS320F28069https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1647737/tms37145-allowed-lf-receive-frequency-range-min-maxWed, 20 May 2026 12:18:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d9e3a797-aae2-47b8-aa2a-3c3852b52d24Ryu YamashitaPart Number: TMS37145 Hi team, Background: We are reviewing an existing LF immobilizer system and identified TMS37145 as the transponder. The public datasheet lists only the typical resonant frequency of 134.2 kHz. Questions: What is the guaranteed minimum and maximum LF receive frequency for TMS37145? Is the allowable frequency deviation specified as absolute (kHz) or percentage, and under which conditions (temperature, coil Q, coupling)? Best Regards, Ryu.Industrial AutomationTMS37145https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1644583/cc2755p10-we-need-complete-datasheet-and-programming-specs-of-cc2755p207e0wrhar/6346821Fri, 15 May 2026 10:13:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:67868cb0-8222-4dae-8c16-2ffcc470adb8Sarthak ChatterjeeHello FI, Instead of posting in public forum, could you please share document via email. The request came from one of our most valuable customer. I would appreciate if you could assist in this scenario. We have active NDA between TI and BPM, the document already shared earlier. My email id is sarthak_chatterjee@bpmmicro.com . Thank you. Regards Sarthak Chatterjeehttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1645869/smartrftrxebk-guidance-required-for-sending-and-receiving-data-using-smartrftrxebk/6346654Fri, 15 May 2026 08:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b385d325-5d97-49ba-818f-bf69eeca8998Arthur R☑️Shaik, You have to stop creating new threads on the same topic. Please post the radio settings that you are using in Smart RF Studio 7. This is important for us to know what could be the issue. As a note, any of those settings should allow you to test reception and transmission, as long as they match between your TRX boards: You can export the radio settings by clicking the Register export button. Another question though, how far away are your TRX boards from each other? Are they very close? \ Regards, Arthurhttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1646119/tlc69628q1evm-tlc69628q1evm/6346532Fri, 15 May 2026 06:41:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c30263a8-f1ee-4c13-a177-9ff0eb2bd188Jane YeHi Jeon, Please click request now in the following link. TLC69628-Q1 data sheet, product information and support | TI.com Best regards, Janehttps://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1646129/tms3705-signal-distortion-after-r36-in-tms3705-rx-inputFri, 15 May 2026 03:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f8e8e01d-96cb-4964-be72-ad951dbf9d49Derek WuPart Number: TMS3705 Hi, I am seeing severe waveform distortion after R36 in my TMS3705 receiver circuit: * Frequency: approximately 134 kHz * Before R36: roughly sinusoidal, peak-to-peak ~0.74 V * After R36: distorted, peak-to-peak ~1.39 V, with sharp spikes and flattened edges The RC network (R36 + C60) seems to cause the distortion because the RC time constant (~22 us) is much larger than the signal period (~7.5 us). The BAV99 diodes may also contribute to the spikes. Question: How should I modify R36, C60, or the clamping diodes to reduce waveform distortion while keeping the signal within the TMS3705 input range? Thanks.Portable ElectronicsTMS3705https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/1646119/tlc69628q1evm-tlc69628q1evmFri, 15 May 2026 02:41:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5d742b88-c4d7-4ebf-b29c-7d25a65718a3JEON SUNGUKPart Number: TLC69628Q1EVM Hello. Order number T06406588 I purchased 3 TLC69628Q1EVM units. I couldn&#39;t find any information on the web. I would like to receive the circuit diagrams or application notes. rexcns@rexcns.com Thank you.TLC69628Q1EVMTLC69628-Q1