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ISL59451
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Triple 4:1 DC Restored Single Supply Video Multiplexing Amplifier
DATASHEET
FN6253 Rev 0.00 September 24, 2007
The ISL59451 is a 4-input, single-supply triple video multiplexer. It features a DC restore function that makes it ideally suited for single-supply AC-coupled component video applications where amplifier headroom is a concern.
When logic “0” is applied to CLAMP, the sample-hold amplifier loop is closed and the DC level of the amplifier output is set to the corresponding reference level. This can occur during sync, or at any time that a black level is expected.