MAX4357 Datasheet | Maxim Integrated

Description The MAX4357 is a 32 ✕ 16 highly integrated video crosspoint switch matrix with input and output buffers. This device operates from dual ±3V to ±5V supplies or from a single +5V supply. Digital logic is supplied from an independent single +2.7V to +5.5V supply. All inputs and outputs are buffered, with all outputs able to drive standard 75Ω reverse-terminated video loads. The switch matrix configuration and output buffer gain are programmed through an SPI/QSPI™-patible, three-wire serial interface and initialized with a single update signal. The unique serial interface operates in two modes facilitating both fast updates and initialization. On power-up, all outputs are initialized in the disabled state to avoid output conflicts in large-array configurations. Superior flexibility, high integration, and space-saving packaging make this nonblocking switch matrix ideal for routing video signals in security and video-ondemand systems. The MAX4357 is available in a 128-pin TQFP package and specified over an extended -40°C to +85°C temperature range. Features o 32 ✕ 16 Nonblocking Matrix with Buffered Inputs and Outputs o Operates from a ±3V, ±5V, or +5V Supply o Each Output Individually Addressable o Individually Programmable Output Buffer Gain (AV = +1V/V or +2V/V) o High-Impedance Output Disable for Wired-OR Connections o 0.1d B Gain Flatness to 12MHz o Minimum -62d B Crosstalk, -110d B Isolation at 6MHz o 0.05%/0.1° Differential Gain/Differential Phase Error o Low 220m W Power Consumption (0.43m W per Point) Ordering Information PART MAX4357ECD TEMP. RANGE -40°C to +85°C PIN-PACKAGE 128 TQFP Applications Security Systems Video Routing Video-On-Demand Systems Pin Configuration appears at end of data sheet. Functional Diagram Typical Operating Circuit IN0 MAX4357 AV- ENABLE/DISABLE OUT0 CAMERAS IN0 IN1 OUT1 MAX4357 MONITOR OUT0 MONITOR IN1 32 x 16 SWITCH MATRIX AV- OUT1 IN2 AV- OUT2 IN31 RESET POWER-ON RESET THERMAL SHUTDOWN AV-...