Features: · 32 ✕ 16 Nonblocking Matrix with Buffered Inputs and Outputs
· Operates from a ±3V, ±5V, or +5V Supply
· Each Output Individually Addressable
· Individually Programmable Output Buffer Gain (AV = +1V/V or +2V/V)
· High-Impedance Output Disable for Wired-OR Connections
· 0.1dB Gain Flatness to 12MHz
· Minimum -62dB Crosstalk, -110dB Isolation at 6MHz
· 0.05%/0.1° Differential Gain/Differential Phase Error
· Low 220mW Power Consumption (0.43mW per Point)Application·Security Systems
·Video Routing
·Video-On-Demand SystemsPinout
SpecificationsAnalog Supply Voltage (VCC - VEE) ....................................+11V
Digital Supply Voltage (VDD - DGND) ...................................+6V
Analog Supplies to Analog Ground
(VCC - AGND) and (AGND - VEE) ......................................... +6V
Analog Ground to Digital Ground .......................-0.3V to +0.3V
IN_ Voltage Range ........................ (VCC + 0.3V) to (VEE - 0.3V)
OUT_ Short-Circuit Duration to AGND, VCC, or VEE....Indefinite
SCLK, CE, UPDATE, MODE, A_, DIN, DOUT,
RESET, AOUT...............................(VDD + 0.3V) to (DGND - 0.3V)
Current into Any Analog Input Pin (IN_) ......................±50mA
Current into Any Analog Output Pin (OUT_)..................±75mA
Continuous Power Dissipation (TA = +70°C)
128-Pin TQFP (derate 25mW/°C above +70°C).................2W
Operating Temperature Range .....................-40°C to +85°C
Junction Temperature..................................................+150°C
Storage Temperature Range .......................-65°C to +150°C
Lead Temperature (soldering, 10s) ............................ +300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe 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 75 reverse-terminated video loads.
The switch matrix configuration and output buffer gain of MAX4357 are programmed through an SPI/QSPI™-compatible, 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 MAX4357 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.
MAX4357 Data Sheet
