Part Number: TAS5756M
Hi,
I am doing acoustic tuning with PPC2 + TAS5756M (our designed PCB with 2pcs of TAS5756M , 4 speakers output with 4 independent signals)
But PPC2 seems support 2.1 mode(stereo + Mono) only...
is there any method for setting dual stereo mode with 1pcs of PPC mother board on PPC2?
Or should i use 2pcs of PPC mother board for dual stereo ?
Part Number: LM3150
Hello,
we are experiencing some problem with switching spikes during CE certification.
Main source seems to be the two Mosfets driven by the LM3150.
We already have a 4 layer pcb with internal power planes and the layous seem to be correct . We followet the suggested applications note .
Adding a large (470uF) low ESR input capacitor halps but not solve.
In your AN you do not place any Snubber network. It should help, but I cant find any suggestion about it on the AN.
Do you have any suggestion?
Best regards
Francesco
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i using the testing pen to link the AISENP and BISENP (the postive link the AISENP,negative link the BISENP). the waveform is sinusoidal. and Is this connection correct ?
Part Number: TAS5754M
Hi
Due to datasheet does not provide 1% THD+N curve. Do you have any test data for this question.
In PBTL mode with 4ohm Load, for 15W 1% THD+N, what is the required PVDD ?
Also is there a formula to do roughly calculation, for example if the datasheet only show 10% THD power level, how to base on this to calculate 1% THD+N power level ? thanks!
Part Number: TPS61253A
Hello
Customer happen fail issue that output only 4.7V voltage of TPS61253A? Has any risk for schematics and inductor? Thank you.
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BR
Patrick
Part Number: TMS320F28377D
I wonder what this library does. [rts2800_ml(fpu32)lib]
Let me know if you have a document you can recommend.
Part Number: DP83848-EP
hi
My customer is applying DP83848N.
I would like to know the absolute maximum ratings of 11,12 (RD +, RD-) pin and 14,15 (TD +, TD-) pin based on DP83848N.
I explained to the customer at the link below.
"Vin / Vout specifications are -0.5V to Vcc + 0.5V."
e2e.ti.com/.../840939
The problem is as follows:
DP83848N uses VCC 3.3V input.
That means no more than 3.8V input.
Absolute maximum value is too low.
Isn't the data sheet content wrong?
Like the picture below
When the PHY chip operates normally, the voltage of the corresponding MDI Pin will be about 4V as shown below. 3.8V doesn't make sense.
Part Number: AM5728
Hello, TI Experts,
I have additional question from the below E2E-thread about TIDL.
https://e2e.ti.com/support/processors/f/791/t/735984
I tried to convert to "inceptionnet_v1.pb" based on the E2E-thread with below environment.
- SDK: ti-processor-sdk-linux-am57xx-evm-06.00.00.07
- EVM: TMDSEVM572X
But it seems to fail with errors like below;
Here is detail:
> activate tf1.1_env
Download from https://github.com/tensorflow/models
>cd inception\inception
>python freeze_inception_net_v1.py ( copy from python_freeze_graph.zip )
(copy from ..Lib\site-packages\tensorflow\python\tools\optimize_for_inference.py )
>python optimize_for_inference.py --input=inception_v1.pb --output=inceptionnet_v1.pb --input_names=input --output_name=softmax/Softmax
Then, convert to tidl files on TMDSEVM572X
evm> tidl_model_import.out.exe tidl_import_inceptionNetv1.txt
Question:
- Do you have same experience?
I would like to attached related files.
So, I would appreciate if you check the behavior with your EVM and tell us how to solve this problem.
Best regards,
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Part Number: IWR1443BOOST
Tool/software: Code Composer Studio
I want to control the frame period only once for data transmission and reception. Can it be done?
Part Number: TCI6638K2K
Tool/software: Code Composer Studio
Hi,
Our customer want to purchase TCIEVMK2X which is the EVM of TCI6638K2K. The link is as below: http://www.ti.com/tool/TCIEVMK2X .
But we can't order it from this link. Would you please help us on how to purchase it ? thanks.
Part Number: BQ34Z100-G1
Hi Expert:
I would like to write battery parameter from host MCU but after doing I
get the error code 1470 when programming selected Chemistry.
Please find below test environment & procedure.
1.Test Environment :
HW:
a.bq34z100-G1 EVM
b.EV2400 with FW v0.28
SW:
a.bqStudio 1.3.06
b.Chemistry version : 730
Reproduce procedure:
1. Open bqStudio -> click Chemistry to select 0402 -> programming -> OK
2. Generate Golden Image
3. Put 0100_0_16-bq34z100G1.df.fs into MCU header file as c-string and use
gauge_execute_fs function to parse df.fs string to flash data memory of gauge
from HOST MCU.
4. After procedure 3 the all leds of bq34z100-G1 EVM are turned on .
Any wrong ? And the gauge IC will lose connection on bqStudio
until I click programming button and than click Execute FW button.
5.After all above procedure I open bqStudio and program Chemistry parameter
again. I get the error code 1470
Could you have any suggestion ?
Best regards,
Wilson
Part Number: TMS320F28377D
Hi all,
I am using TMS320F28377D. The program was working normally, but, suddenly branches to EMU_ISR () and stops.
I wonder why EMU_ISR () is called.
What condition does EMUINT occur in the TMS320F28377D chip?
Thank you for considering my request.
Part Number: TMS320F280040
Tool/software: Code Composer Studio
hello. i want to generate the .out file in CCS.but it is not successful .the i check the project properties,find something is wrong with Hex utilty memu as below:
Then I copy the project into another computer that has the same version CCS, then i find the C2000 Hex utility has submenu as below；
and the ccs versin as below；
Part Number: DAC81416EVM
Hello Uttam,
Unfortunately while working on the DAC-EVM, it has got damaged by me. While working I checked the DAC IC and detected that it was heating up. After disconnecting the power supplly and other connections, I found that the VDD/VAA lines are showing a short connection. I suspect that due to a mistake in connection of the power supplies, the DAC IC has got damaged.
I wish to replace the faulty IC, and wanted to know if there are temperature sensitive components on the board and if the inner layers on the board have any temperature sensitivity.
Please guide me.
Thanks,
Sufyan Khan
Part Number: SN74LVC8T245
Part Number: OPT9221
Hi team,
1. Problem phenomenon:
Phenomenon 1: When the frame rate is adjusted by pix_cnt_max, the depth of 240*320 shows an error in a segment of the frame.
Normal frame:
Flashing error pixel frame:
Phenomenon 2: When the camera is covered with a black sponge, the normal depth map should be full blue, but after adjusting to a specific frame rate, a segment of pixels will appear errors in the sub-frame, which is consistent with Phenomenon 1.
Normal frame:
Flashing error pixel frame:
The related registers are:
quad_cnt_max:6
sub_frame_cnt_max:2
lumped_dead_time:0
row_start:0
col_start:0
row_end:239
col_end:19
Change data: intg_duty_cycle：10 pix_cnt_max：200000 No error frame appears
intg_duty_cycle：10 pix_cnt_max：160000 No error frame appears
intg_duty_cycle：20 pix_cnt_max：160000 No error frame appears
---------------------------------------------------------------------------------------------------------------
intg_duty_cycle：10 pix_cnt_max：100000 Error frame appears (as shown above)
intg_duty_cycle：20 pix_cnt_max：200000 Error frame appears
2. Question: Why do the modifications of intg_duty_cycle and pix_cnt_max cause the above phenomena?
Best Regards,
Amy Luo
Part Number: TPS65988DJ
Dear all,
In my customer application, there are two full function ports, so TPS65988DJ is chose for the design.
Here is one scenario need to be considered when two ports are inserted power, how to determine which is will be used?
and How to set in FW in this application considering two power input simultaneously?
Thanks.
Part Number: ADS1191
Dear TI team，
Project：Portable electrocardiograph like a pen
1.ADC plan to use ADS1191 , For better contact induction, 2 electrodes are better；
Now I see ADS1191 use 4 electrodes ，so I ask that 2 electrodes is ok？Is there a reference design？
2. By the way ，ADI: AD8233 can only use 2 electrodes， Although it output anolog signal。
Part Number: PGA411-Q1
Hi team,
how to understanding the DEV_PHASE_CFG / EXTUVF_CFG register? if set EXTUVF_CFG to 0xb, My understanding is that if set 0x, it mean when the voltage is lower than UV1 or UV2, the OR inputs will have a high level; if set 10, it mean when the voltage is lower than UV1 and UV2 at the same time, the AND output pint will have a high level, does my understanding is right?
thank you
