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MAX4548 - Serially Controlled / Triple 3 x 2 Audio/Video Crosspoint Switches

General Description

The MAX4548/MAX4549 serial-interface, programmable, triple 3x2 audio/video crosspoint switches are ideal for multimedia applications.

The devices include three crosspoint switch matrices, each containing three inputs and two outputs.

Key Features

  • o Selectable Soft-Switching Mode for “Clickless” Audio Operation o 22Ω Typical On-Resistance (+5V Supply) o 5Ω Typical On-Resistance Matching Between Channels o 2Ω Typical On-Resistance Flatness o Audio Performance -85dB Off-Isolation at 20kHz -85dB Crosstalk at 20kHz 0.07% THD with 600Ω Load o Video Performance -72dB Off-Isolation at 10MHz -55dB Crosstalk at 10MHz o Serial Interface 2-Wire I2C-Compatible (MAX4548) 3-Wire SPI/QSPI/.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-1496; Rev 0; 6/99 Serially Controlled, Triple 3x2 Audio/Video Crosspoint Switches General Description The MAX4548/MAX4549 serial-interface, programmable, triple 3x2 audio/video crosspoint switches are ideal for multimedia applications. The devices include three crosspoint switch matrices, each containing three inputs and two outputs. To improve off-isolation, each switch matrix has a shunt input and each output is selectively programmable for clickless or regular-mode operation. A selectable set of internal resistive voltage dividers supplies DC bias for each output when using AC-coupled inputs. To improve crosstalk, the voltage dividers include four externally accessible bypass points.