Overview
The LA7955 Video Switch IC is used to switch the video and audio signals of TVs, VCRs and similar equipment. Separate pin layouts for the video and audio systems facilitate board design. Tow signals can be selected from the three input signals in a symmetrical arrangement using a control signal. Law impedance lines (VCC, GND and control input) between the input and output pins minimize crosstalk caused by the high frequency of the video section. The LA7955 operates on a 12V power supply and is available in 20-pin plastic slim DIPs.

FEATUREs
• Separate video and audio pin layouts
• Built-in 6dB video amps
• Wideband characteristics
• Minimal video and audio crosstalk
• 12V power supply
• 20-pin plastic slim DIP

Functions
• Video applications : 3 inputs, 2 outputs
• Audio applications : 3 inputs, 2 outputs × 2 (L, R) channels
• Built-in muting circuits for 2 left and right audio output channels