3 Channel video buffer

A 3 channel SDTV video amplifier/filter with a 6-dB gain.

  •  This product
  •  Schematic
  •  Example: NES2 composite out
  •  Example: NES2 composite out
  •  Example: SNES YPbPr (component) out


This circuit is based on Texas Instruments's THS7314, a 3-Channel SDTV video amplifier/filter with a 6-dB gain. With 3 channels, the circuit can be used to buffer not only composite (CVBS) video, but also S-Video (Y/C), component (YPBPR) and RGB.

The capacitors required for AC coupling are present in this design, but DC coupling is also possible as solder points are available for both coupling types.

Here are a few possible applications of this circuit:
  • Adding composite video outputs on old consoles.
  • Video amp for video game RGB mods.
  • Video buffer/repeater (eg: To display the same picture on multiple monitors)
For detailed specifications and information, consult the THS7314 datasheet and product schematic.

Example use cases available at raphnet.net.


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In stock : Ships within 5 business days unless noted otherwise (out of stock, pre-order, holidays, etc).
DescriptionTriple SDTV buffer board

We normally ship within 5 days (excluding week-ends and holidays) after payment.
Prices are in US dollars and are subject to change without notice.

Download(s) & Link(s)

THS7314 Datasheetslos513a.pdf