Questions tagged [texas-instruments]

A manufacturer of semiconductors, both discrete and integrated circuits.

Texas Instruments (TI) is a USA-based company that manufactures a broad range of semiconductor devices, including both discrete devices as well as integrated circuits. They are well known for power management, microcontroller and DSP solutions, as well as ADC and DAC products, including those acquired via the purchase of Burr-Brown. They also have some other business units such as educational technology that manufactures their well-known line of calculators.

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Why does TI have so many microcontrollers?

I am working on a project with a group and I am responsible for the digital part of the project, so I will be writing the code. To go from Analog to Digital, I have to choose a microcontroller. I was looking at TI microcontrollers and found that…
Andy_A̷n̷d̷y̷
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How does TI CC3000 wifi smart config work?

The ti cc3000 wifi chip has a special smart config mode, this is to allow the initial configuration of the wifi access details. The cc3000 wiki page gives some details on how the process works, The chip enters a smart config "listen"…
srinathhs
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1000 Hz+ refresh rate displays/ projectors? (for making volumetric displays)

I have found only few volumetric displays for the kind of effect I'm looking for. They can be divided by two characteristics into two separate groups each: rotating or moving screens, and moving screens with a high refresh rate projector projecting…
Leo Ervin
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Why include a small resistance between op-amp stages

I have been reading through TI's reference material on constructing a current source. http://www.ti.com/lit/an/sboa046/sboa046.pdf In figure 52 there is a 150ohm resistor included between the output of the instrumentation amplifier and the input of…
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crystal oscillators connected in parallel

why there are two crystal oscillators connected in parallel in the circuit above? i am familiar with the configuration of Q2( look at the schematic) but what is the purpose of Q3? do i really need to implement it? if yes, why? the chip is…
Maxwell S.
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What is ORing and why is it named ORing?

I read some documents like the PoE application, it used ORing to protect the reverse input current. I would like to know what ORing is. I googled it, but I cannot find the answer. It seems like a diode or something the datasheet uses diode to…
EEC
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Stellaris LM4F120 Series: What happened to it?

A while ago I got a Stellaris Launchpad for the new LM4F120 MCU but did not get around to trying it out. When I now tried accessing any information on the LM4F120 series at TI, anything related to it seems to have disappeared and old links are…
ARF
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What are the purpose of the extra diodes in this peak detector circuit (LM1815)?

This is the circuit diagram from the LM1815 datasheet. I understand everything in this circuit except for the two diodes that I have marked with red. They are in a peak-detector circuit, but all of the implementations of peak detectors circuits that…
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Why use marks on the PCB solder layer?

I was studying a Texas Instrument reference board and would like to understand some topologies and PCB routing techniques. The project is a 230-V, 3.5-kW PFC with >98% Efficiency. Here's the complete project page where you can download the CAD…
zewill
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USB hub and slave on same pcb - are serial resistors and capacitors needed?

I'm building a device using TUSB2046B hub controller 4x FT230X USB to UART controller First, let's look on Hub controller sample application: Note D: All USB DP, DM signal pairs require series resistors of approximately 27 Ohm to ensure…
peku33
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Mystery 1974 vintage TI chip: N286M26

I inherited three of these Texas Instruments vintage ICs, marked N286 (regular size) and M26 (unusually large). The smaller pairs of digits on the right hand side, 74 and 18, are, I assume, the manufacturing date. Does anyone have any info on what…
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What is the purpose of this layout feature

I have been researching some TI power supply ICs and came across the following diagram in the datasheet for TPS40200. Can anyone explain why the trace circled in red is connected as it is instead of filling in the entire plane and joining to its…
Michael Shaw
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TI MSP430 JTAG Interface

I am working on interfacing a JTAG interface to a MSP430BT5190. Below is a showing of how it should be connected. Looking at the pin out of the JTAG, I see there is a TDO and TDI. When connecting this to the MSP, is it inverted such that TDO Prog…
Edwin
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DP83848 + STM32 & Failed EMC (massive spikes of 25MHz crystal harmonics)

So we've failed EMC two times now because of spikes of 25 MHz harmonics from 175 MHz to 300 MHz, especially 175 MHz, 225 MHz and 275 MHz with peaks easily 30-40 dBuV above noise floor measured with Quasi-peak detector. We consulted every material on…
wildfireheart
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Frequency response of dual vs single op amp: OPA2890 vs OPA890

I am looking for an op amp to use as a unity gain buffer with a disable feature. The OPAx890 looks like a good candidate because it is unity gain stable. I have noticed that some op amps labeled as unity gain stable have worse stability than others…
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