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Writing an article about SoCs. Need more information about OMAP 3621, 4460 and 4470.

Korbinian Geiger
Prodigy 10 points
Other Parts Discussed in Thread: 4460

Hi everyone,


I am doing some working experience at an online newspaper.

Currently I am writing an article about CPUs and SoCs being used in modern smartphones.

Unfortunately I did not find too much information in the spec-sheets provided by TI and asked their support. The assistant directed me to the engineering forum to ask for help. Well, I am not an engineer, although I am not too dumb about hardware questions.

I am interested in the OMAP 4470, 4460 and 3621.

So here are my questions:

-Is there a image signal processor included in the OMAP 4470? If yes, what's the maximum resolution it can handle?

-What's the gpu-clock of the PowerVR SGX 530 being used in the 3621 and how fast is the connection between the processing unit and the RAM?

(concerning all devices:)

-Does any of the named devices have an integrated modem? If yes, is LTE (Cat. 6 LTE?) supported?

-Is WiFi ac supported (I don't think so because the standard was not very common when the chips got released)?

-Are there battery saving techniques?

-Is bluetooth built in? If yes, what standard is supported?

-What about NFC?

-What's the maximum display resolution being supported by 3621 and 4470? (4470 I would guess WUXGA, because it's the same graphics being used as in 4460)

-Are external displays supported by any of these three and if so, what are the highest resolutions possible?

-Is the 3621 capable of video-recording and playback? If so: What's the best resolution possible?

A lot of questions, I know.

But maybe someone can afford the time to answer them? :)

Best regards and have a nice day!

  • 0
    TI__Genius 10965 points


    Hi Geiger,

     

    -Is there a image signal processor included in the OMAP 4470? If yes, what's the maximum resolution it can handle?

    Yes it does have. It can support 1080p with no problem.

    -What's the gpu-clock of the PowerVR SGX 530 being used in the 3621 and how fast is the connection between the processing unit and the RAM?

    Omap3 are devices for specific customers, we recommend other devices instead.

    Omap4470 is using SGX544 ( ~3.2 GFLOPS(@ 200 MHz))

    -Does any of the named devices have an integrated modem? If yes, is LTE (Cat. 6 LTE?) supported? 

    Communication (LTE, NFC, BT, WIFI)  is usually handled by separate chip. You can checkout the WiLink solutions by Texas Instruments:

    http://omappedia.org/wiki/OMAP_WiLink_Connectivity_Home

    http://www.ti.com/pdfs/wtbu/WiLink7_WL1283_swmt016.pdf

    -Is WiFi ac supported (I don't think so because the standard was not very common when the chips got released)?

    Same as above, all communication modems are separate devices put together with the OMAP SoC on the board. There are modem chips made in collaborations with Quantenna for 802.11ac support.

    -Are there battery saving techniques?

    Most of the battery techniques for battery  saving are  created with the smart power managing of the OMAP chips allowing it to use low amounts of current when in idle state, and drivers for the linux/android software platforms managing it on higher level.

    -What's the maximum display resolution being supported by 3621 and 4470? (4470 I would guess WUXGA, because it's the same graphics being used as in 4460)

    -Are external displays supported by any of these three and if so, what are the highest resolutions possible?

    You can even extend the supported resolution  beyond  WUXGA by using the two DSI interfaces  of the OMAP4 SoC and achieve resolution up to 2048x1536.

    We do not recommend the omap3621 any more, there is suggested switch to the DM devices (e.g DM3725)

    -Is the 3621 capable of video-recording and playback? If so: What's the best resolution possible?

    By definition recording and playback is ability of every microcontroler powerful enough to handle the data stream ( store, encode/decode, read from designated memory) and the OMAP devices are powerful enough to handle those kind of tasks ( depending on the resolution restrictions).

    If you have more questions don't afraid to ask them here.

    Regards,

    Boyko