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Part: MAX4357ECD
Category:
Multimedia
-> Audio/Video
Description: MAX4357 32 X 16 Nonblocking Video Crosspoint Switch With I/o Buffers
Company: Maxim Integrated Products
Datasheet: Download MAX4357ECD datasheet File size : 717 kB
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Datasheet text preview:
19-2209; Rev 0; 10/01
32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers
General Description
T h e MAX4357 is a 32 1 6 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 are programmed through an SPI/QSPITM-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 disa b l e d state to avoid output conflicts in large-array configurations. Superior flexibility, high integration, and space-saving packaging make this nonblocking switch matrix ideal f o r 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 0.1dB Gain Flatness to 12MHz o Minimum -62dB Crosstalk, -110dB Isolation at 6MHz o 0.05%/0.1° Differential Gain/Differential Phase Error o Low 220mW Power Consumption (0.43mW per Point)
MAX4357
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*
OUT15
DISABLE ALL OUTPUTS
512 16
16 VCC VEE AGND VDD DGND DOUT
IN31
OUT15 MONITOR
DECODE LOGIC DIN SCLK UPDATE CE SERIAL INTERFACE LATCHES MATRIX REGISTER 112 BITS UPDATE REGISTER 16 BITS *AV = +1V/V OR +2V/V A0-A3 MODE
AOUT
SPI/QSPI are trademarks of Motorola, Inc. ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers MAX4357
ABSOLUTE MAXIMUM RATINGS
Analog 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.
DC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES ±5V
(VCC = +5V, VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER Operating Supply Voltage Range Logic-Supply Voltage Range SYMBOL VCC VEE VDD to DGND (VEE + 2.5V) < VIN_ < (VCC - 2.5V), AV = +1V/V, RL = 150 (VEE + 2.5V) < VIN_ < (VCC - 2.5V), AV = +1V/V, RL = 10k Gain (Note 1) AV (VEE + 3.75V) < VIN_ < (VCC - 3.75V), AV = +2V/V, RL = 150 (VEE + 3.75V) < VIN_ < (VCC - 3.75V) AV = +2V/V, RL = 10k (VEE + 1V) < VIN_ < (VCC - 1.2V), AV = +1V/V, RL = 10k Gain Matching (Channel to Channel) Temperature Coefficient of Gain TCAV AV = +1V/V Input Voltage Range VIN_ AV = +2V/V RL = 10k RL = 150 RL = 10k RL = 150 VEE + 1 VEE + 2.5 VEE + 3 VEE + 3.75 RL = 10k RL = 150 CONDITIONS Guaranteed by PSRR test MIN 4.5 2.7 0.97 0.995 TYP MAX 10.5 5.5 1 UNITS V V
0.99
0.999
1 V/V
1.92 1.94 0.95
1.996 2.008 0.994 0.5 0.5 10
2.08 2.06 1 1.5 2 VCC - 1.2 VCC - 2.5 VCC - 3.1 VCC - 3.75
% ppm/°C
V
2
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32 x 16 Nonblocking Video Crosspoint Switch with I/O Buffers MAX4357
DC ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES ±5V (continued)
(VCC = +5V, VEE = -5V, VDD = +5V, AGND = DGND = 0, VIN_ = 0, RL = 150 to AGND, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER Output Voltage Range Input Bias Current Input Resistance Output Offset Voltage Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode DC Power-Supply Rejection Ratio SYMBOL V OUT IB RIN_ V OFFSET ISC Z OUT IOD PSRR (VEE + 1V) < VIN_ < (VCC - 1.2V) AV = +1V/V AV = +2V/V Sinking or sourcing, RL = 1 (VEE + 1V) < VIN_ < (VCC - 1.2V) (VEE + 1V) < VOUT_ < (VCC - 1.2V) 4.5V < (VCC - VEE) < 10.5V Outputs enabled, TA = +25°C Outputs enabled Outputs disabled Quiescent Supply Current IEE RL = Outputs enabled, TA = +25°C Outputs enabled Outputs disabled IDD 50 4 55 95 60 RL = 10k RL = 150 CONDITIONS MIN VEE + 1 VEE + 2.5 4 10 ±5 ±10 ±40 0.2 0.004 70 100 150 175 75 150 175 75 8 mA 1 ±20 ±40 TYP MAX VCC - 1.2 VCC - 2.5 11 UNITS V µA M mV mA µA dB
ICC
RL =
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