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OPT3002: I2C standard mode timing requirement
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MC34063A: About Charging Current to Timing Capacitor
Part Number:MC34063A
Dear Sir or Madam,
When deciding on a timing capacitor, the following questions should be addressed, so please give me good advice.
The following formula which described in
the Application Report: SLVA252B
Chapter 3.4 Timing Capacitor Calculation
the formula:
Ct = Ichg (min) * (Δt / ΔV)
= 20 x 10-6 * (ton / 0.5)
= 4.0 × 10-5 * (ton)
it has become "Ichg (min) = 20 uA".
However, Ichg specifications have become
24uA (min), 35uA (typ), 42uA (max)
on MC34063A data sheet: SLLS636N.
The value of Ichg(mini) is different between the two.
How should I think about "Ichg (min): 20uA" in the equation for Ct?
Sincerely yours,
Hirofumi Sekido
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AWR1642: frame and chirp process time tracking in AWR1642 SDK2.xx
Part Number:AWR1642
Dear Officer,
We can get the interChirpProcessingTime, interChirpWaitTime, interFrameProcessingTime and interFrameWaitTime from DSP code MmwDemo_MsgTimeInfor structure.
1. What is unit for these value? Is it cpu ticks rather than usec or msec? How to convert in time unit?
2. How to calculate these time limit/maximum time based on the chirp/frame configuration? So we can monitor these timing and make sure it won't exceed the deadline limit?
3. Can we get the timing tracking from mss side also? Because we also need to including the process time in mcu side and also the UART/CAN transmission time..
Thanks and best regards
He Wei
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LAUNCHXL-F280049C: How to use both CAN _A and CAN_B on the same launchpad
Part Number:LAUNCHXL-F280049C
Hello,
I have purchased LAUNCHXL-F280049C. On this launchpad pins are present only for one CAN module. I want to test and use both CAN modules in my system.
1) How to use second CAN module on the same launchpad.
2) Do I need a external CAN transceiver module to use second CAN.
Regards,
Nisha
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CDC3RL02: Current Consumption Data for CDC3RL02BYFPR
Part Number:CDC3RL02
Hello team
Could you let me get your advice on the below query?
VBAT : 3.3V / 3.6V / 4.2V
- Requirements
- Current Consumption Data
- Condition
- VBAT : 3.3V / 3.6V / 4.2V
- Cap Load : 10pF
26MHz output working at both CLK_OUT1 & CLK_OUT2
26MHz output working at the only CLK_OUT1
52MHz output working at both CLK_OUT1 & CLK_OUT2
52MHz output working at the only CLK_OUT1
Below is for 30pF in Datasheet.
Thanks and Best Regards
Billy Yun
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IWR1443BOOST: iwr1443，version
Part Number:IWR1443BOOST
I bought an IWR 1443 Boost, version ES3.0, but the board couldn't do pose recognition experiments. How can I buy the IWR 1443 version of ES2.0, as long as the price is higher?
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TLV758P: Maximum output capacitance
Part Number:TLV758P
Hi,
May I know if there is any issue for TLV758P when the load has 5 x 100uF output cap (several Vref used for DAC). The load current is around 100mA and output is 5V.
From the datasheet, it is showing maximum output capacitor is 220uF. I found most LDO having 220uF output cap.
Please let me know how to address this if there is any concern.
Or will TLV759P (1A) part be better?
Thanks.
Gim Song
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TINA/Spice/LM3481: LM3481 Flyback How to calculate the comp circuit
Part Number:LM3481
Tool/software:TINA-TI or Spice Models
Hi :
I am using lm3481 to cret a circuit input 6-16V output1 15V 1A output 2 5V 1A
I am tyring follow the compensation approach that is suggested in the application note. SNVA761A
4.4.3 step 3:culculate R1 R2
my questions:
Why set the fc=3kHz
Figure 11 shows that the current loop DC gain at 3 kHz is about 16.2 dB???
4.4.4 culculate C1 C2
Why set fzero=400Hz
Thank you
B&R
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TMS320C6746: Unidirectional use of SPI interface
Part Number:TMS320C6746
SPRUH80C says: 26.2.7 SPI Operation: 3-Pin Mode NOTE: If only unidirectional communication is required, the SPIx_CLK pin and the two data pins (SPIx_SOMI and SPIx_SIMO) must all be configured as functional pins. A 2-pin unidirectional mode is not supported. From this I conclude that neither ball associated with SOMI nor SIMO is avaible as GPIO. Is this correct?↧
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TMS570LC4357: Disable Lockstep core
Part Number:TMS570LC4357
Hi,
Is there any way the lockstep can be completely disabled?
I wanted to know if lockstep can be disabled, and if the two cores can be operated independently?
Regards,
Archana Rao
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DLPC3479: API for DLPC347x
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DS90UB953A-Q1: 2 CMOS camera
Part Number:DS90UB953A-Q1
Hi Team,
In my application I have 2 CMOS Camera of Omnivision, I connect the CLK IN of both CMOS.
Each CMOS have LANE 0 & LANE 1 that connect to the DS90UB953 (LANE 0 & LANE 1 of CMOS 1 connect to DS90UB953 & LANE 0 & LANE 1 of CMOS 2 connect to DS90UB953).
Each CMOS have CLK OUTPUT but only the CLK OUTPUT from CMOS 1 connect to DS90UB953, the CLK OUTPUT of CMOS 2 is disconnect (not connect to DS90UB953).
The CMOS camera of Omnivision have: Each LANE have 800bps, 2 LANE MIPI, 1M pixel 120FPS.
That the DS90UB953 can support such application?
I know that TI will have soon samples of DS90UB971/3/5 so I have question about them:
How many lanes 4 or 8 and what the bps of each lane 800 or 1600bps?
Thanks,
Shlomi
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DP83849I: About the oscillator used for DP83849I
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OPA4171: Comparator
Part Number:OPA4171
My customer wanna to know if OPA can be used as Comparator? And Can Comparator be used as OPA? why? or Why not?
Thanks.
Regards,
Brian
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TPS53513: Max Duty Cycle for TPS52513
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BQ78350-R1: bqStudio does not list gauge device
Part Number:BQ78350-R1
Hi
I recently started using the EVM for bq76930 and bq78350_R1.
I've installed bqStudio and successfully downloaded and updated the firmware for bq78350 as per instructions in the bq76930 EVM Users Guide. The GUI now displays version 1e9b_1_04 for the bq78350_R1.
However, when restarting bqStudio, and after selection gauge as the device, the list of device types does not include this version. An error screen with dire warnings is displayed if 1e9b_1_03 is selected from the list.
I have tried both versions of bqStudio (the current one, and the test one) and both have this same problem. I've attached screenshots showing the error.
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CC2650: cc2650
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TMS320F28377D: CLA Access to SPI
Part Number:TMS320F28377D
Hi
I have a scenario where in I need to collect about 64bytes of data on SPI port inside CLA. Is it possible?
Regards
Sundar
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TPS54327: Is low-side switch ON or OFF? When EN-pin is low.
Part Number:TPS54327
Hi, TI team.
Is low-side switch ON or OFF? When EN-pin is low.
Customer concern about damages to low-side switch when quickly and constantly switching of EN-pin.
KAMURA
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BQ34Z100-G1: BQ34Z100-G1 error
Part Number:BQ34Z100-G1
Dear All:
I design 8S1P pack with BQ34Z100-G1, I use the DC source to simulate the battery to calibrate and program BQ34Z100 before pack progress, and when in the pack progress, I find that a few individual boards SOC display 0%, the voltage display 530mv，and the normal voltage is 32000mv. why the voltage and the SOC is wrong ？ can you help me with the answer ,thanks~
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