Video Converters

Browse by Tags

Video Converters

Welcome to the Video Converters Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

Tags
You have subscribed to this tag. To view or manage your tag subscriptions, click here.   Close
You have unsubscribed from this tag. To view or manage your tag subscriptions, click here.   Close
You are currently viewing:
ths8135
Related Posts

  • Blog Post: New Application Note Releases

    Foe
    The following new TVP/THS application notes are now available from ( http://www.ti.com/ ). Literature Number Release Date Description SLEA073A August 2009 TVP5158 PCB Layout Guidelines SLEA075 September 2009 TVP5151 PCB Layout Guidelines SLEA076 June 2010 THS8134B PCB Layout Guidelines...
    on Jul 29, 2010

  • Forum Post: THS8135 Output problem

    BH4636
    I'm interfacing a ths8135 to an OMAP 3530 in order to create an analog VGA signal. My image that should look like this Instead looks like this with a black band along the right side. Seems a little too large to be due to the 8 pixel delay caused by the 8135. Any ideas would be helpful
    on Aug 27, 2010

  • Forum Post: Re: THS8135 Output problem

    Larry Taylor
    BH, It appears that the OMAP3530 is retaining the last active pixel of a line throughout the horizontal blanking, instead of outputting black level. If this cannot be changed in the OMAP3530, you may need to supply a DE signal from OMAP and connect to the THS8135 /Blank input to force a black or black...
    on Aug 28, 2010

  • Forum Post: Re: Sync on THS8135

    Larry Taylor
    Ran, If you are using 1.8V logic, you will need to use a 1.8V/5V level translator for digitial HS and VS generation. We have used an SN74LVCT45 for this. Note that there is an 8 pixel clock latency throught the THS8135 DACs, so to align HS with the RGB, you will need to delay this in the digital source...
    on Oct 13, 2010

  • Forum Post: Re: Sync on THS8135

    ran cohen56951
    Thx Larry i can't find data on SN74LVCT45, are you sure there isn't a mistake on one of the letters? would i also need to level translate RGB and the other pins comming from the OMAP to the RGB encoder? btw, isn't there an already prepared schematics for these syncs?, seems something...
    on Oct 14, 2010

  • Forum Post: Re: Sync on THS8135

    Larry Taylor
    Ran, Try SN74LVC2T45DCUT. The THS8135EVM schematic files are at http://focus.ti.com/docs/toolsw/folders/print/ths8135evm.html . The EVM has this level translator on it. The EVM trageted RGB graphics with separate HS and VS, so there is no control logic for sync insertion. The analog RGB output...
    on Oct 15, 2010

  • Forum Post: Re: THS8135 (with OMAP3530)

    Larry Taylor
    Josh, AC_Bias is the OMAP signal that is typically used as a DE/blank singal with the THS8135. The blanking signal needs to include the entire blanking interval, not just the HSYNC interval. You may want to check the DAC outputs to see if they are within a 0-700mV range. For generic RGB outputs...
    on Nov 12, 2010

  • Forum Post: Re: THS8135 (with OMAP3530)

    Josh Watts
    Thank you for the prompt reply! :-) I've got the acbias signal enabled and it's operating when it should, but I think my re-work broke something else near-by... I'm getting ~980mV on the green output and ~500mV on the red and blue outputs. I know it's outside of the scope of my original...
    on Nov 15, 2010

  • Forum Post: Re: THS8135 (with OMAP3530)

    Larry Taylor
    Josh, The THS8135 has current output DACs. The output voltage level depends on the output load resistor and RGB termination. The full-scale adjust resistor sets the full-scale output current of the DACs equally, so this appears to be related to individual DAC load resistors. When viewing on a scope...
    on Nov 16, 2010

  • Forum Post: THS8135: Signal Anomoly Question

    Raymond Franzen
    I need some assistance or recommendations. The design is using the THS8135 DAC that is mated to an NXP HDMI RX chip. We are seeing an anomaly whereby one color band signals is stronger and more predominant than the others. What w e are using is the THS8135 in General Mode (no sync pulse). ...
    on Dec 2, 2010

  • Forum Post: Re: THS8135: Signal Anomoly Question

    Larry Taylor
    To enable generic DAC mode, tie M1 and M2 to logic low and /Sync and Sync-T to logic high. Sunc insertion will be disabled in this mode of operation. If /Blank is not used, tie to logic high. /Blank may be required, however, if the processor does not output black level during the blanking interval...
    on Jan 3, 2011

  • Forum Post: Re: video converters

    saptarshi dutta
    Thanks Larry I think i will have to operate TFP401 in 1pixel/clock mode instead of 2pixel/clock. How the HS be delayed using I2C control?? Tell me which video DAC i need to use (THS8135 or THS8134B or THS8200) keeping in mind that TFP401 gives out 24 bits of RGB. (so probably 8 bit...
    on Feb 21, 2011

  • Forum Post: Re: video converters

    saptarshi dutta
    Larry Is there any EVM for TF401A available.I need that desperately and how to interface it with a THS8135 EVM as it takes a analog RGB input which is then internally converted into a digital RGB via TVP7002 then again back to an analog RGB output. Please help me out if you can. Regards...
    on Mar 4, 2011

  • Forum Post: Re: video converters

    saptarshi dutta
    That means since i am not using a LVDS interface so i need to connect the DDC SDA and SCA to the EEPROM for letting the host know what formats can be supported by DVI.Moreover answer me the following queries:- 1>Can i connect the ODCK clock output of TFP401A to the TVP_DATACLK input of SN74AVC32T245GKE...
    on Mar 10, 2011

  • Forum Post: Re: video converters

    Larry Taylor
    Saptarshi, Yes the same level translator can be used for the 3.3V>1.8V interface with the TFP401 clock used in place of the TVP clock and DE used in place of AVID. Do you have a THS8135EVM that you are working with? It is best to include the DDC circuit.
    on Mar 10, 2011

  • Forum Post: Re: video converters

    saptarshi dutta
    Larry Please tell me one thing while going through the THS8135EVM power circuitry i found out that each voltage regulater has 2 o/ps Vout1 and Vout2 but both Vout1 and Vout2 itself have 2pins.Moreover 2pins of both Vout1 and Vout2 are shorted.Is it rigt to just short 2 o/p pins. Please do tell...
    on Mar 21, 2011

  • Forum Post: Re: video out

    James Nave
    Hello Eli, Recommend using the THS8135 triple DAC. Regards, Jim
    on Jul 19, 2011

  • Forum Post: Re: video out

    eli
    I already recomended the THS8200. What are the THS8135 advantages over the THS8200,for this application?
    on Jul 19, 2011

  • Forum Post: Re: video out

    James Nave
    Hello Eli, The THS8135 is in a smaller package (48-pin TQFP versus 80-pin TQFP). The primary advantage of the THS8200 is that it supports color space conversion. Also, the THS8135 supports 1.8V digital I/O; whereas, the THS8200 supports 3.3V digital I/O. Regards, Jim
    on Jul 19, 2011

  • Forum Post: THS8135

    william saich
    How do we use Hsync,Vsync and Fsync with the THS8135 or any other method to generate a composite output
    on Sep 22, 2011

  • Forum Post: Re: THS8135

    Larry Taylor
    Wiliam, The THS8135 cannot generate composite syncs directly form HS, VS, and Fsync. It requires correctly timed /Sync, Sync-t (for tri-level), and /Blank to insert the blank level and sync tip. For support of composite sync generation directly fromHS/VS and embedded syncs, see the THS8200.
    on Sep 23, 2011

  • Forum Post: Re: THS8135

    sam volamp
    How do you convert HS, VS & Fsync to /Sync, Sync-t and /Blank
    on Sep 28, 2011

  • Forum Post: THS8200 vs THS8135

    Jeff Jeon
    Hi, Simply, I thought THS8200 has higher specification than THS8135. But, I found the spec like below. - THS8135 YPbPr or RGB SDTV/HDTV (I/P) with embedded composite bi- or tri-level sync. VESA PC graphics up to 1920x1440@60Hz - THS8200 YPbPr SDTV/HDTV (I/P), VESA(to UXGA@75Hz ), ITU-R BT...
    on Oct 20, 2011

  • Forum Post: Re: THS8200 vs THS8135

    Larry Taylor
    Jeff, The resolution supported can be determined from the maximum samples rates of the DACs and the pixel or clock rate required for a particular resolution . The THS8200 is specifiied at 205MSPS (max) and the THS8135 at 240MSPS (max). Based on this, the THS8135 can support higher pixel rates and...
    on Oct 20, 2011

  • Forum Post: THS8135 bi-level and tri-level sync

    Miles Guidon
    I am trying to build a device to generate a bi-level or a tri-level sync signal (generate only one at a time, based on some sort of selector logic input). I have found the THS8135, which looks to have a lot more capabilities than what I'm after, but I suppose I can ignore a lot of the chip and just...
    on Jul 11, 2012
12

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use