# Analog Interface

**URL:** https://discourse.myriadrf.org/t/analog-interface/2750
**Category:** LimeSDR
**Created:** [2 May 2018 22:46 UTC](https://discourse.myriadrf.org/t/analog-interface/2750 "2018-05-02T22:46:35Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Nawfal\_M](https://avatars.discourse-cdn.com/v4/letter/n/278dde/32.png) [@Nawfal\_M](https://discourse.myriadrf.org/u/Nawfal_M)
#### Post date: [2 May 2018 22:46 UTC](https://discourse.myriadrf.org/t/analog-interface/2750/1 "2018-05-02T22:46:35Z")

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Is it possible to access the analog interface of the LMS7002 on the LimeSDR??? (To transmit/receive a PAL/NTSC video signal)

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### Author: ![andrewback](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@andrewback](https://discourse.myriadrf.org/u/andrewback)
#### Post date: [3 May 2018 06:33 UTC](https://discourse.myriadrf.org/t/analog-interface/2750/2 "2018-05-03T06:33:05Z")

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You can find the schematics here:

> **[myriadrf/LimeSDR-USB](https://github.com/myriadrf/LimeSDR-USB)**
>
> USB 3.0 version of the LimeSDR board. Contribute to myriadrf/LimeSDR-USB development by creating an account on GitHub.

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### Author: ![mzs](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/mzs/32/2678_2.png) [@mzs](https://discourse.myriadrf.org/u/mzs)
#### Post date: [3 May 2018 08:29 UTC](https://discourse.myriadrf.org/t/analog-interface/2750/3 "2018-05-03T08:29:38Z")

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If you look at the datasheet for the LMS7002M, to find out the analogue pin names [https://wiki.myriadrf.org/LimeMicro:LMS7002M\_Datasheet#Package\_outline\_and\_pin\_description](https://wiki.myriadrf.org/LimeMicro:LMS7002M_Datasheet#Package_outline_and_pin_description)  
And then cross reference those names to the page 4 of the[schematic](https://github.com/myriadrf/LimeSDR-USB/blob/master/hardware/socket/1v4/Project%20Outputs%20for%20LimeSDR-USB_1v4s_LMS031pad/LimeSDR-USB_1v4s_schematic_r7.PDF) (IC1C - “Baseband external IO”), it is reasonably clear that none of them are used.

And you can verify that by looking at all the [pin headers, which are only on the digital side of the board](https://wiki.myriadrf.org/LimeSDR-USB_hardware_description#LimeSDR-USB_board_overview), none of them are for analogue interfaces.
