Other Parts Discussed in Thread: DRV2605, TAS2557, DRV2605L, DRV2624, DRV2625, , TAS2560
Hi Haptics team
I would like to have information on drivers for LRA.
I have two questions.
(1)
We are considering using DRV2604 as a driver for LRA.
DRV2604 is described as "Internal RAM for Customized Waveforms" and I think that it meets my requirement specification.
However, when DRV2604 is used, License fee is not included from Immersion,
When using that Wave Form, does it have to pay the License fee?
For example, if I use own Waveform(near the Immersion Wave form) with DRV2604,
If it conflicts with Immersion License, will License fee occur separately?
DRV2605 does not have internal RAM, but internal ROM is built in,
If I use DRV2605 then I can use "Immersion Wave Form" without paying it separately.
reference:
"If a customer is interested in licensing Immersion's technology and IP via TI,
please recommend the DRV2605 L (or DRV2605).
None of TI's other haptic drivers carry any Immersion IP licensing.
(2)
We are considering using TAS2557 as a driver for LRA.
According to the document I got, there is a statement "Use RAM memory on TAS 2557 to implement waveform storage".
We recognize that we can store the desired waveform data for LRA and generate vibration via LRA, is it correct?
I can't find out the description of "RAM Memory" in the TAS2557 data sheet (slasec2a.pdf).
Please tell me if you have details.
If you have any information then please let me know.
Best Regards
Shing