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TPS53681: IMVP8 6+2 solutions

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Part Number:TPS53681

Dear all,

Could you please help advice which part is suitable for the IMVP8 6+2 solutions. Imax为193A,Itdc为150A.

Thanks,


TS3A5223: can this support I2S signal or not

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Part Number:TS3A5223

Hi Team,

I'd like to use TS3A5223 for audio I2S signal switch, is this suitable or not? Thank you.

C.T.

TMDSEMU110-U: tmdsemu110-u Energy Trace not working correctly

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Part Number:TMDSEMU110-U

Hi, 

I have recently bought a tmdsemu110-u + HDR for ET power measurements of the CC1352. Everything seems to work fine apart from the minimum current that i can measure. When i know that with 3.3v supplied the current i should measure is 2-3uA, I get 500-600uA from ET. This is with the low setting, using CCSv8 or 9, with or without the HDR. 

Is there some diagnostics or some updated FW that I need to use with the Probe in order to fix this issue ? or is it bust ? 

Thanks.

SPIO-4: SPIO-4 Sensor AFE Digital Controller Board Driver Issue (Bossa Program Port)

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Part Number:SPIO-4

I'm trying to use a SPIO-4 Sensor AFE Digital Controller Board, and when I returned after a long weekend the driver reads as Bossa Program Port (COM30) and no longer connects with the software.

All attempts to uninstall and reinstall the driver using the techniques previously mentioned on this forum have failed, at this point I'm lost as to what else I should try.

Any help is much appreciated.

MSP430FR6047: Level meter

CC1310: Is frequency hopping always needed?

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Part Number:CC1310

I am designing a sensor based on CC1310 running at 868 (EU) and 915MHz (US) with an output power of 10dBm.

FCC is very clear that with 10dBm we must use frequency hopping in US.

But lets say I want to send a 10mS long packet once per day.

Do I still need to use frequency hopping?

/Dan

DS90LV018A: Junction to case thermal resistance

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Part Number:DS90LV018A

Hi Team,

Good day. Do you have data on the thermal resistance from junction to case of DS90LV018A (DS90LV018ATM/NOPB specifically)? Any input will be highly appreciated

Looking forward for your response. Thank you in advance.

Kind Regards,

Jejomar

CC1200: Relationship between symbol rate and RF bandwidth

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Part Number:CC1200

Hello,

I know that the CC1200 User Guide has a helpful table on page 30 that describes the relationship between Data Rate (in kpbs) and Symbol Rate (in ksps), which depends on the encoding selected. What I don't understand is the relationship between the symbol rate and the RF bandwidth needed. For example, if I have am designing for a licensed application with a 20 kHz authorized bandwith, how would I know what to set the symbol rate to to get the maximum allowable data rate? For example on page 25 it shows a frequency analyzer graph of the transmitted signal--how can I tell the chip how wide I want that waveform to be? I see how to set that for receive, but I'm not sure how to do it for transmit.

Thanks,

Aidan


TPS2412: What to do if my FET Ciss is lest than 1nF data sheet recommendation

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Part Number:TPS2412

Hello,

My schematic is attached.

Questions 1:

Per section 8.3.6  TI recommends that a fet with 1nF Ciss or greater is used.  I'm referring to the first of the three bullet points.  My load is very light and because of that I'm using the PMPB215ENEA N-Channel FET.  This has a Ciss of ~215pF.  What should I do to make sure my TPS2412 is stable and operates correctly with this FET?

Question 2:


Per the second bullet in section 8.3.6, does every TPS2412 circuit require 100uF ceramic output capacitance?  I'm wondering if I need to add this as my load is very light (basically an MSP430FR5969 and some peripheral digital circuitry).  Right now my output is 4.7uF which is way off according to this statement in the datasheet.

Screenshot of the bullets from the datasheet I'm referring to.

DRA725: Navigation issue with CarPlay for Deasy 187B Stereo Model

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Part Number:DRA725

Hi ,

I have Desay 187B Stereo model in my Car and it has navigation issue, most of time navigation arrow doesn't follow me. It start well but after some it loses direction. 

In this design "DRA725LGABCRQ1" is used, which is infotainment processor. Any clue how to fix this ? 

Also, for sometime navigation doesn't detect my movement as well. Looks like CAN speed info is not read by stereo. I'm using iPhone X for Carplay. 

Thanks in Advance.. 

TMS320F28035: Debugger for TMS320F28035?

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Part Number:TMS320F28035

I have a customer who is asking, "Does TI have a Piccolo F28035 debugger?"

Thanks,

David Hildebrand

CCS/SW-EK-TM4C1294XL: ISR Handler remains unresolved

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Part Number:SW-EK-TM4C1294XL

Tool/software: Code Composer Studio

Hello there,

I have a EK-TM4C-1294XL board an running the GrLib demo.

I´m trying to defin a timer  ISR, but the routine remains unresolved saying 

"unresolved symbol PpmMatchIntHandler, first referenced in ./startup_ccs.obj grlib_demo C/C++ Problem"

 
I have defined it in 

1) grlib_demo.cpp, like void PpmMatchIntHandler(void){ .... };
2.) in startup_ccs.c as an extern function "extern void PpmMatchIntHandler(void); "
3.) in startup_ccs.c within the "g_pfnVectors" table


Even if I define a function prototype in grlib_demo.cpp, it doesn´t help.


Does someone have an idea, what I´m missing?

best regards!

 

AWR1642: AWR1642BOOST connect to MCU

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Part Number:AWR1642

I updated lab0011-pplcount binary code on AWR1642BOOST, it can work when I connect the board to PC by using USB port (XDS110 Class Application/User UART and XDS110 Class Auxiliary Data Port). My target is to configure AWR1642BOOST from another MCU UART port by following setting, but no any response message when I send configuration data from MCU UART to AWR1642BOOST RS232RX. 

Do I miss some HW/SW setting for enabling AWR1642BOOST UART port?

TFP410: TFP410

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Part Number:TFP410

Can TFP410 directly interfaced with HDMI connector? I believe only T.M.D.S with shielding required for the video transmission. Please note that we are interested only in Video not in Audio. I saw some of the TI reference design used ESD + Level shifter IC (P/N# TPD12S521). Is it really required? Due to Board space constraint we are not comfortable adding this device. If my understanding is right, we just need 24bit + control signals encoded to T.M.D.S by transmitter(TFP410) and other end Decoded T.M.D.S to 24bit by Receiver (TFP401). Why do 5V level shifter required?

Regards,

Balaji A

LMH1297: LMH1297 Full Datasheet

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Part Number:LMH1297

Hello, I need some help finding the full datasheet for the LMH1297. The web page for the LMH1297 has the Short Datasheet.

Thank you,

Joe


RHoS compliance

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Please advise where I can find the REACH/RHoS compliance certifications for CDCE421ARGET

LM117: Using LM117 to generate a negative voltage

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Part Number:LM117

Two bench power supplies can be connected together to produce +/- 3V by connecting the plus of one to the negative of the other to create a common GND?

Is it possible to connect two LM117s together to produce +/- 3V? The same positive d.c. line voltage would be input to both POLs?

I am trying to generate a low-current negative rail easily rather than construct one using a switching regulator.

thank you

DP83869HM: Transceiver for SGMII Ethernet MDI

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Part Number:DP83869HM

Hi Team,

Does the DP83869 can it be a transceiver for SGMII <-> Ethernet MDI? 1GbE?

Thanks,

Shlomi

 

LMV951: Shutdown pin

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Part Number:LMV951

What is the default state of the showdown pin? The datasheet is essentially silent, talking only about how to wire it to switch from enabled to disabled. What happens if it is left open. I ask because I'm substituting it for another part that has no pad at the shutdown pin. I can scrape off the resist and solder the pin to the ground plane but would just as soon avoid doing that.

The data sheet, which has several examples, has no example with guidance on the optimum gain resistors. Changing the values in Tina-TI shows some very strange performance for noise.

Thanks,

Dave

MSP-EXP432E401Y: Azure IoT SDK provisioning_client_sl_release.a Library Missing

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Part Number:MSP-EXP432E401Y

Do any of the Azure IoT SDK Provisioning Client examples work?...I tried to build the MSP-EXP432E401Y Azure IoT example for Device Provisioning and the link step fails due to missing prebuilt library.

The prebuilt library should be present in the downloaded Azure IoT CSDK, but is missing: cannot find file "C:/ti/azure_msp432e4_2_20_00_05/source/third_party/azure-iot-pal-simplelink/build_all/sdk/lib/ccs/m4f/provisioning_client_sl_release.a". I have not successfully been able to rebuild the Azure IoT SDK libraries either from the source code.

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