Part Number:LM5117
Dear All,
We have designed DC-DC converter using LM5117 IC as per steps given in datasheet. But we are facing some issue while testing it.
Below attached is the schematic.
(Please visit the site to view this file)
Part Number:LM5117
Dear All,
We have designed DC-DC converter using LM5117 IC as per steps given in datasheet. But we are facing some issue while testing it.
Below attached is the schematic.
(Please visit the site to view this file)
Part Number:LMX2571EVM
Hi
Our company create special synthesizer contains two LMX2571, to prototype we use two LMX2571EVM boards and two USB2ANY interfaces to control the boards separately according TICS Pro Software. The output frequency depends from two synthesizers. Our solution is weak and very cumbersome because each frequency change requires from us seperate devices configuration.
We looking the example of use USB2ANY.dll which will helps us create our configuration scripts through SPI interface. To achieve as assumptions we have to SPI interface control and two GPIO (as CS).
We found in Internet some USB2ANY document but commands from it do not work.
www.caprilion.com.tw/USB2Any.pdf
Best Regards
Mateusz Drewniak
Part Number:TRF7960A
Dear Soppot Team
Our customer is using TRF7960A. They set EN=0 to change the device to POR state.
However, they see that IRQ is High after setting EN=0 as the attached file.
Could you advise me why IRQ is high state (IRQ line is pull-up)?
Also please let me know how to reset (POR) the device from the condtion of IRQ high
when they request POR with EN=0.
Best Regards,
NA.
(Please visit the site to view this file)
Part Number:PCM1865
Hi,
I have written an email directly to the support engineer, but my question hasn’t been answered yet.
I’m using PCM1865 in pdm mode to process data from digital microphone and send it to microprocessor ESP32. I use sample frequency 131kHz and PCM config as followed:
pcm_wirte_reg( PCM186X_REG_PAGE_SELECT, PCM186X_REG_RESET ); //Resetowanie PCM
pcm_wirte_reg( PCM186X_REG_PAGE_SELECT, 0x03 ); // select Page3
pcm_wirte_reg( PCM186X_REG_MIC_BIAS_CTRL, 0x00 ); // 0x15
pcm_wirte_reg( PCM186X_REG_PAGE_SELECT, 0x00 ); // select Page0
pcm_wirte_reg( PCM186X_REG_PWDOWN_CONF, 0b01110001 ); // 0x70 - standby
pcm_wirte_reg( PCM186X_REG_ADC1L_IN_SEL, 0b01000010 ); // 0x06 - VIN1L2
pcm_wirte_reg( PCM186X_REG_ADC1R_IN_SEL, 0b01000010 ); // 0x07 - VIN1R2
pcm_wirte_reg( PCM186X_REG_ADC2L_IN_SEL, 0b01000000 ); // 0x08 - none
pcm_wirte_reg( PCM186X_REG_ADC2R_IN_SEL, 0b01000000 ); // 0x09 - none
pcm_wirte_reg( PCM186X_REG_GPIO_1_0_FUNC, 0b00010001 ); // 0x10 - GPIO0 and GPIO1 as DIGMIC_IN0 and DIGMIC_IN1
pcm_wirte_reg( PCM186X_REG_GPIO_3_2_FUNC, 0b00000001 ); // 0x11 - GPIO2 as DIGMIC_CLK
pcm_wirte_reg( PCM186X_REG_GPIO_PULLDOWN, 0b00000000 ); // 0x15
//pcm_wirte_reg( PCM186X_REG_DPGA_VAL_CH1_L, 0x00 ); // 0x0F DPGA gain = 0dB (default)
//pcm_wirte_reg( PCM186X_REG_DPGA_VAL_CH1_R, 0x00 ); // 0x16 DPGA gain = 0dB (default)
pcm_wirte_reg( PCM186X_REG_DPGA_CH_2_1_CTRL, 0xff ); // 0x19 - DPGA manual config (set 0dB)
pcm_wirte_reg( PCM186X_REG_AUDIO_INTERFACE_FORMAT, 0b01000100 ); // 0x0B
pcm_wirte_reg( PCM186X_REG_TDM_OSEL, 0b00000000 ); // 0x0C
pcm_wirte_reg( PCM186X_REG_TX_TDM_OFFSET, 0b00000001 ); // 0x0D
pcm_wirte_reg( PCM186X_REG_RX_TDM_OFFSET, 0b00000001 ); // 0x0E
pcm_wirte_reg( PCM186X_REG_DIN_RESAMP, 0b00000001 ); // 0x1B
pcm_wirte_reg( PCM186X_REG_CLOCK_CONF, 0b00101110 ); // 0x20
pcm_wirte_reg( PCM186X_REG_PLL_FRAC_JD_DIV_LSB, 0 ); // 0x2C
pcm_wirte_reg( PCM186X_REG_PLL_FRAC_JD_DIV_MSB, 0 ); // 0x2D
pcm_wirte_reg( PCM186X_REG_INT_CONF1, 0x00 ); // 0x60
pcm_wirte_reg( PCM186X_REG_DSP_CTRL, 0b10011100 ); // 0x71
pcm_wirte_reg( PCM186X_REG_DSP1_CLOCK_DIV, 0 ); // 0x21
pcm_wirte_reg( PCM186X_REG_DSP2_CLOCK_DIV, 0 ); // 0x22
pcm_wirte_reg( PCM186X_REG_ADC_CLOCK_DIV, 7 ); // 0x23
pcm_wirte_reg( PCM186X_REG_PLL_SCK_CLOCK_DIV, 1 ); // 0x25
pcm_wirte_reg( PCM186X_REG_MCLK_CLOCK_DIV, 3 ); // 0x26
pcm_wirte_reg( PCM186X_REG_MSCK_CLOCK_DIV, 63 ); // 0x27
pcm_wirte_reg( PCM186X_REG_PLL_P_DIV, 1 ); // 0x29
pcm_wirte_reg( PCM186X_REG_PLL_R_DIV, 1 ); // 0x2A
pcm_wirte_reg( PCM186X_REG_PLL_INT_JD_DIV, 8 ); // 0x2B
pcm_wirte_reg( PCM186X_REG_PLL_CONF, 0b00000011 ); // 0x28 - start PLL
vTaskDelay( 50 );
pcm_wirte_reg( PCM186X_REG_PWDOWN_CONF, 0b01110000 ); // 0x70 – run
I have two types of PCM series 6ATG4 A93F and 48TG4 C240. The problem is that the noise level is dramatically higher in 48TG4 C240. I compare the noise with a plot in datasheet, which says that useful signal should be -120dB. I count and 6ATG4 A93F have about -140dB but 48TG4 C240 have -100dB which have significant impact on received data. I attach a time course and fft of these two types of PCM. These two elements were on the same PCB board and the same software configuration.
Best regards,
Konrad Koperek
Part Number:TMDSADAP180TO100
Does anybody know the horizontal connectors used on this assembly?
I am using a 2837x control card and are looking for sources for the connectors.
Thanks, Dave.
Part Number:DRV8301-69M-KIT
When I upload the new appProgram.out with the new user.h parameters, the InstaSPIN GUI identifies the wrong KIT (HV REV 1.1 instead of DRV8301 KIT-REVD). Where could I have made some mistakes?
Part Number:C2000WARE
Tool/software: Code Composer Studio
Hello,
I am trying to introduce data error in flash through introduce bit error option in linker output tab (in Code composer studio).
I have declared a constant variable and modified one bit value through CCS and the value has been changed but flash ECC single bit error is not detected.
i have uploaded the workspace below.
Note : linker file : 28004x_flash_api_lnk.cmd
test case : flashapi_ex1_program_autoecc.c
let me know if you need more details.
Part Number:BQ4050
Hi
I use bq4050 in my project and I unable to write in to the data flash of bq4050.
I also refer your datasheet and technical reference. I send the block command 0x44 + data address + data(in little endien) and read 34 byte. But problem is not resolved.
Can you please tell me how to write Data in DataFlash?
Regards
Rahul
Part Number:TMS320F28069M
Tool/software: Code Composer Studio
I am using CCS8.2.1 in my PC and created code for CAN communication, which is giving me output without any error.
I am copying same code (ecanbacktoback.c) file and trying execute using another PC with same CCS8.2.1 version, execute without error but not generating output.
So tell me how to copy the file. I have copied completed project from workspace folder and copied into another workspace folder of another PC.
Also included include files too.
Thanks in advance.
Part Number:TPS61194-Q1
Hi Team,
I am confused with this T-resistor network calculation.
Which one to follow? Attached Excel calculation or attached snap.
If I try same resistor values from snap in the resistor calculation excel, Vboost value calculated is different and not 20V or 30V or 40V.
Kindly revert asap.
Thanks and Regards,
Vidhya
Part Number:TPS3813
Hi ,
My customer is using this part for design, they want to have 20~25 second reset window.
the Cext is set to 56 nF but the reset time can only achieve around 16 second.
It should be 22 second originally.
I just find that there are errors for the reset time setting if using the external cap
May I ask that is it because of the place mark in green causing this problem?
the 75% of 22 sec is around 16 sec
Please see the schematic from customer and let us know if there are problems need to fix
Thanks for your help.
Part Number:TLV62085
Hi,
Could you please give me advice for below questions?
1. Switching Freq is decreasing from 300mA load in Vin = 2.5V as below information. Is there idea why switching freq is decreasing in only Vin = 2.5V?
2. The calculation for fPFM uses Iout. I guess VOS read Iout. If my understanding is correct, could you please let me know how to get Iout with VOS? (Is there internal current sense?)
Regards,
Nagata.
Part Number:TMS320C6713B
Tool/software: Code Composer Studio
I am unable to take an audio signal as input. I need some tutorials to work on it. My work is on noise cancellation. So, please guide me how to start.
Part Number:INA219
Hi Team,
Could you please provide the Data Hold Time information (t(HDSTA) & t(HDDAT)) in Standard Mode (100 kbps)? Thanks!
The datasheet lists the information in Fast and High-Speed Modes only.
Best regards,
Sam Ting
Part Number:TMDSEVM437X
Dear Team
I have bought the EVM4379 Module from EMA-TECH China. Once they promise me the board supports the Android OS V6.0. But now they said "TI don't have technical support for Android OS officially "
Now the question is the EVM for AM4379 Processor Doesn't Support Android OS?
Part Number:ISOW7821
Dear Ladies and Gentlemen,
In my new design the device must withstand an ESD discharge test as specified in EN 61000-4-2 Level 4. This means that the capacitor of 330 pF of the test generator is charged to 8 kV and discharged via 330 Ohms into GND of the isolated side. If no stitching capacitance is used this means that the isolated GND charges to 8 kV against non-isolated GND. Unfortunately I cannot find specs in the datasheet directly related to this test.
My questions are now:
1. Will the device pass this test without isolation barrier breakdown without any additional measures?
2. If yes, which of the specs would guarantee this (V_IOTM production test, V_IOSM qualification test)?
3. If not, which ESD bypass components (i.e. suppressors) do You recommend between isolated and non-isolated GND? Gas discharge tube, TVS, varistor?
4. Since the specs are equal, can I assume Your answers are valid for the ISOW784x as well?
Thanks and best regards!
Part Number:TMS320DM8148
Hi
We are planning to connect a video bus from an FPGA to the TMS320DM8148.
We would like to know if the video in ports {A,B} allow a single clock jitter in vertical timing?
Thanks
Part Number:BQ24610
Hi,
I have a doubt regarding the source pin of the BATFET tht is used in BQ24610.
Is it mandatory to short the Source pin of the BATFET with the System load path as encircled(in red) in the attachment(BQ24610.JPEG)?
Or else Can i treat it as two seperate path(BQ2610_ALTERNATE.JPEG)? As attached in the image Please suggest whether the battery must be connected to the battery charger IC when no adaptor is connected ?
Request you to answer this ASAP, because I am running out of time
Regards,
Karthik