MAX4357 19-2209 Rev 1 5/09 32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers General Description Features The MAX4357 is a 32 16 highly integrated video 32 16 Nonblocking Matrix with Buffered Inputs crosspoint switch matrix with input and output buffers. and Outputs This device operates from dual 3V to 5V supplies or from a single +5V supply. Digital logic is supplied from Operates from 3V, 5V, or +5V Supplies an independent single +2.7V to +5.5V supply. All inputs Each Output Individually Addressable and outputs are buffered, with all outputs able to drive standard 75 reverse-terminated video loads. Individually Programmable Output Buffer Gain (A = +1V/V or +2V/V) The switch matrix configuration and output buffer gain V are programmed through an SPI/QSPI-compatible, High-Impedance Output Disable for Wired-OR 3-wire serial interface and initialized with a single Connections update signal. The unique serial interface operates in 0.1dB Gain Flatness to 12MHz two modes facilitating both fast updates and initializa- tion. On power-up, all outputs are initialized in the dis- Minimum -62dB Crosstalk, -110dB Isolation at abled state to avoid output conflicts in large-array 6MHz configurations. 0.05%/0.1 Differential Gain/Differential Phase Superior flexibility, high integration, and space-saving Error packaging make this nonblocking switch matrix ideal for routing video signals in security and video-on- Low 220mW Power Consumption (0.43mW per demand systems. point) The MAX4357 is available in a 128-pin TQFP package and specified over an extended -40C to +85C tem- Ordering Information perature range. PART TEMP RANGE PIN-PACKAGE Applications MAX4357ECD -40C to +85C 128 TQFP Security Systems Pin Configuration appears at end of data sheet. Video Routing Video-On-Demand Systems Functional Diagram Typical Operating Circuit MAX4357 CAMERAS IN0 A * OUT0 V IN0 OUT0 MONITOR IN1 IN1 AV* OUT1 32 x 16 SWITCH MATRIX A * IN2 V OUT2 OUT1 MAX4357 MONITOR IN31 A * OUT15 V POWER-ON THERMAL RESET RESET SHUTDOWN 16 512 16 DISABLE ALL OUTPUTS VCC IN31 OUT15 VEE DECODE LOGIC AGND DIN V SCLK LATCHES DD MONITOR SERIAL DGND UPDATE INTERFACE MATRIX REGISTER CE DOUT 112 BITS UPDATE REGISTER AOUT 16 BITS *A = +1V/V OR +2V/V V A0-A3 MODE SPI/QSPI are trademarks of Motorola, Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. ENABLE/DISABLE32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers ABSOLUTE MAXIMUM RATINGS Analog Supply Voltage (V - V ).....................................+11V Current into Any Analog Input Pin (IN ) ...........................50mA CC EE Digital Supply Voltage (V - DGND) ...................................+6V Current into Any Analog Output Pin (OUT ).....................75mA DD Analog Supplies to Analog Ground Continuous Power Dissipation (T = +70C) A (V - AGND) and (AGND - V ) ..................................... +6V 128-Pin TQFP (derate 25mW/C above +70C).................2W CC EE Analog Ground to Digital Ground .........................-0.3V to +0.3V Operating Temperature Range ...........................-40C to +85C IN Voltage Range.......................... (V + 0.3V) to (V - 0.3V) Junction Temperature......................................................+150C CC EE OUT Short-Circuit Duration to AGND, V , or V ......Indefinite Storage Temperature Range .............................-65C to +150C CC EE SCLK, CE, UPDATE, MODE, A , DIN, DOUT, Lead Temperature (soldering, 10s) ................................ +300C RESET, AOUT..........................(V + 0.3V) to (DGND - 0.3V) DD 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. DC ELECTRICAL CHARACTERISTICSDUAL SUPPLIES 5V (V = +5V, V = -5V, V = +5V, AGND = DGND = 0, V = 0, R = 150 to AGND, and T = T to T , unless otherwise CC EE DD IN L A MIN MAX noted. Typical values are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage V - CC Guaranteed by PSRR test 4.5 10.5 V Range V EE V to DD Logic-Supply Voltage Range 2.7 5.5 V DGND (V + 2.5V) < V < (V - 2.5V), EE IN CC 0.97 0.995 1 A = +1V/V, R = 150 V L (V + 2.5V) < V < (V - 2.5V), EE IN CC 0.99 0.999 1 A = +1V/V, R = 10k V L (V + 3.75V) < V < (V - 3.75V), EE IN CC Gain (Note 1) A V/V V 1.92 1.996 2.08 A = +2V/V, R = 150 V L (V + 3.75V) < V < (V - 3.75V) EE IN CC 1.94 2.008 2.06 A = +2V/V, R = 10k V L (V + 1V) < V < (V - 1.2V), EE IN CC 0.95 0.994 1 A = +1V/V, R = 10k V L R = 10k 0.5 1.5 L Gain Matching % (Channel to Channel) R = 150 0.5 2 L Temperature Coefficient of Gain TC 10 ppm/C AV R = 10k V + 1 V - 1.2 L E E C C A = +1V/V V R = 150 V + 2.5 V - 2.5 L E E C C Input Voltage Range V V IN R = 10k V + 3 V - 3.1 L EE C C A = +2V/V V R = 150 V + 3.75 V - 3.75 L E E C C 2 MAX4357