Nonblocking Video Crosspoint Switch with On-Screen Display Insertion B

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Nonblocking Video Crosspoint Switch with On-Screen Display Insertion B

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19-2111; 8/01
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
MAX4358 highly integrated video crosspoint switch matrix with input output buffers On-Screen Display (OSD) Insertion. This device operates from dual supplies from single supply. Digital logic supplied from independent single +2.7V +5.5V supply. Individual outputs switched between input video signal source information through internal, dedicated fast (40ns switching times) located before output buffer. inputs outputs buffered, with outputs able drive standard reverse-terminated video loads. switch matrix configuration output buffer gain programmed through SPI/QSPITM-compatible, three-wire serial interface initialized with single update signal. unique serial interface operates modes facilitating both fast updates initialization. power-up, outputs initialized disabled state avoid output conflicts large-array configurations. Superior flexibility, high integration, space-saving packaging make this nonblocking switch matrix ideal routing video signals security video-ondemand systems. MAX4358 available 144-pin TQFP package specified over extended -40°C +85°C temperature range. MAX4358 evaluation available speed designs.
Features
Nonblocking Matrix with Buffered Inputs Outputs Operates from ±3V, ±5V, Supply Fast Switching (40ns) Insertion Each Output Individually Addressable Individually Programmable Output Buffer Gain +1V/V +2V/V) High-Impedance Output Disable Wired-OR Connections 0.1dB Gain Flatness 12MHz Minimum -62dB Crosstalk, -110dB Isolation 6MHz 0.05%/0.1° Differential Gain/Differential Phase Error 195mW Power Consumption (0.38mW point)
MAX4358
Ordering Information
PART MAX4358ECE TEMP RANGE -40°C +85°C PACKAGE TQFP
Configuration appears data sheet.
Applications
Security Systems Video Routing Video-On-Demand Systems
Functional Diagram
OSDFILL1 OSDFILL0 OSDFILL15
MAX4358 ENABLE/DISABLE OUT0
Typical Operating Circuit
SWITCH MATRIX
CAMERAS
OUT1
OUT0 MONITOR IN31 OUT1
OUT2
IN31 RESET POWER-ON RESET THERMAL SHUTDOWN
OUT15
MAX4358
OSDFILL0
DISABLE OUTPUTS
AGND DGND DOUT
MONITOR
DECODE LOGIC SCLK UPDATE SERIAL INTERFACE LATCHES MATRIX REGISTER BITS UPDATE REGISTER BITS
GENERATOR
OSDKEY0 OSDFILL1 OSDKEY1 OUT15 MONITOR
AOUT +1V/V +2V/V
OSDFILL15 OSDKEY15
A0-A3 MODE OSDKEY0 OSDKEY15 OSDKEY1
SPI/QSPI trademarks Motorola, Inc. Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
ABSOLUTE MAXIMUM RATINGS
Analog Supply Voltage (VCC VEE) .+11V Digital Supply Voltage (VDD DGND) .+6V Analog Supplies Analog Ground (VCC AGND) (AGND VEE) Analog Ground Digital Ground .-0.3V +0.3V IN_, OSDFILL_ Voltage Range (VCC 0.3V) (VEE 0.3V) OUT_ Short-Circuit Duration AGND, VCC, .Indefinite SCLK, UPDATE, MODE, DIN, DOUT, RESET, AOUT, OSDKEY_.(VDD 0.3V) (DGND 0.3V) Current Into Analog Input (IN_, OSDFILL_).±50mA Current Into Analog Output (OUT_).±75mA Continuous Power Dissipation +70°C) 144-Pin TQFP (derate 28.6mW/°C above +70°C).2.23W Operating Temperature Range .-40°C +85°C Junction Temperature .+150°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10s) +300°C
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES
(VCC +5V, -5V, +5V, AGND DGND VIN_= VOSDFILL_ AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER Operating Supply Voltage Range Logic Supply Voltage Range SYMBOL DGND (VEE 2.5V) VIN_ (VCC 2.5V), +1V/V, (VEE 2.5V) VIN_ (VCC 2.5V), +1V/V, Gain (Note (VEE 3.75V) VIN_ (VCC 3.75V), +2V/V, (VEE 3.75V) VIN_ (VCC 3.75V) +2V/V, (VEE VIN_ (VCC 1.2V), +1V/V, Gain Matching (Channel Channel) Temperature Coefficient Gain TCAV +1V/V Input Voltage Range VIN_ +2V/V 3.75 3.75 CONDITIONS Guaranteed PSRR test 0.97 0.995 10.5 UNITS
0.99
0.999
1.92 1.94 0.95
1.996 2.008 0.994
2.08 2.06
ppm/°C
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES (continued)
(VCC +5V, -5V, +5V, AGND DGND VIN_= VOSDFILL_ AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER SYMBOL Output Voltage Range VOUT Input Bias Current Input Resistance Output Offset Voltage Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode Power-Supply Rejection Ratio RIN_ VOFFSET ZOUT PSRR (VEE VIN_ (VCC 1.2V) +1V/V +2V/V Sinking sourcing, (VEE VIN_ (VCC 1.2V) (VEE VOUT_ (VCC 1.2V) 4.5V (VCC VEE) 10.5V Outputs enabled, +25°C Outputs enabled Outputs disabled Quiescent Supply Current Outputs enabled, +25°C Outputs enabled Outputs disabled 0.004 CONDITIONS UNITS
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES
(VCC +3V, -3V, +3V, AGND DGND VIN_ VOSDFILL_ AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER Operating Supply Voltage Range Logic Supply Voltage Range SYMBOL DGND (VEE VIN_ (VCC 1.2V), +1V/V, (VEE VIN_ (VCC 1.2V), +1V/V, Gain (Note (VEE VIN_ (VCC 2.1V), +2V/V, (VEE VIN_ (VCC 2.1V) +2V/V, Gain Matching (Channel Channel) Temperature Coefficient Gain TCAV +1V/V Input Voltage Range VIN_ +2V/V Output Voltage Range VOUT Input Bias Current Input Resistance Output Offset Voltage VOFFSET (VEE VIN_ (VCC 1.2V) +1V/V +2V/V 1.92 1.985 2.08 CONDITIONS Guaranteed PSRR test 10.5 UNITS
0.94
0.983
0.96
0.993
1.94
2.00
2.06
ppm/°C
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES (continued)
(VCC +3V, -3V, +3V, AGND DGND VIN_ VOSDFILL_ AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode Power-Supply Rejection Ratio SYMBOL ZOUT PSRR Quiescent Supply Current CONDITIONS Sinking sourcing, (VEE VIN_ (VCC 1.2V) (VEE VOUT_ (VCC 1.2V) 4.5V (VCC VEE) 10.5V Outputs enabled Outputs disabled Outputs enabled Outputs disabled 0.004 UNITS
MAX4358
ELECTRICAL CHARACTERISTICS-SINGLE SUPPLY
(VCC +5V, +5V, AGND DGND VIN_ VOSDFILL_ +1.75V, +1V/V, AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER Operating Supply Voltage Range Logic-Supply Voltage Range SYMBOL DGND (VEE (VCC 2.5V), +1V/V, Gain (Note (VEE (VCC 1.2V), +1V/V, TCAV Input Voltage Range +1V/V +1V/V, +1V/V, CONDITIONS Guaranteed PSRR test 0.94 0.94 0.995 0.995 ppm/° UNITS
Gain Matching (Channel Channel) Temperature Coefficient Gain
Output Voltage Range
VOUT
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
ELECTRICAL CHARACTERISTICS-SINGLE SUPPLY (continued)
(VCC +5V, +5V, AGND DGND VIN_ VOSDFILL_ +1.75V, +1V/V, AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.)
PARAMETER Input Bias Current Input Resistance Output Offset Voltage Output Short-Circuit Current Enabled Output Impedance Output Leakage Current, Disable Mode Power-Supply Rejection Ratio SYMBOL VOFFSET ZOUT PSRR Quiescent Supply Current 1.2V +1V/V Sinking sourcing, (VEE VIN- (VCC 1.2V) (VEE VOUT- (VCC 1.2V) 4.5V 5.5V Outputs enabled, +25°C Outputs disabled Outputs enabled, +25°C Outputs disabled CONDITIONS 0.004 UNITS
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
LOGIC-LEVEL CHARACTERISTICS
(VCC VEE) +4.5V +10.5V, +2.7V +5.5V, AGND DGND VIN_ VOSDFILL_ AGND, TMIN TMAX, unless otherwise noted. Typical values +25°C.) (Note
PARAMETER Input Voltage High Level Input Voltage Level Input Current High Level Input Current Level Output Voltage High Level Output Voltage Level Output Current High Level Output Current Level SYMBOL +5.0V +5.0V Excluding RESET RESET Excluding RESET RESET -300 0.01 0.01 -235 CONDITIONS UNITS
MAX4358
ISOURCE 1mA, ISOURCE 1mA, ISINK 1mA, ISINK 1mA, +5V, +4.9V +3V, VOUT +2.7V +5V, +0.1V +3V, +0.3V
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES
(VCC +5V, -5V, +5V, AGND DGND VIN_ VOSDFILL_ AGND, +25°C, unless otherwise noted.)
PARAMETER Small-Signal -3dB Bandwidth Medium-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Small-Signal 0.1dB Bandwidth Medium-Signal 0.1dB Bandwidth Large-Signal 0.1dB Bandwidth SYMBOL BWSS BWMS BWLS BW0.1dB-SS BW0.1dB-MS BW0.1dB-LS CONDITIONS VOUT_ 20mVp-p VOUT_ 200mVp-p VOUT_ 2Vp-p VOUT_ 20mVp-p VOUT_ 200mVp-p VOUT_ 2Vp-p VOUT_ step, +1V/V Slew Rate VOUT_ step, +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V V/µs UNITS
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES (continued)
(VCC +5V, -5V, +5V, AGND DGND VIN_ VOSDFILL_ AGND, +25°C, unless otherwise noted.)
PARAMETER Settling Time Switching Transient (Glitch) (Note Power-Supply Rejection Ratio Differential Gain Error (Note Differential Phase Error (Note Crosstalk, Hostile Off-Isolation, Input-to-Output Input Noise Voltage Density Input Capacitance Disabled Output Capacitance Capacitive Load Output Peaking Output Impedance ZOUT 6MHz Output enabled Output disabled Amplifier disable mode SYMBOL 0.1% CONDITIONS VOUT_ step +1V/V +2V/V 100kHz 1MHz 6MHz 6MHz 6MHz +1V/V +2V/V 0.01 0.05 0.03 -110 UNITS degrees µVRMS
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES
(VCC +3V, -3V, +3V, AGND DGND VIN_= VOSDFILL_ AGND, +1V/V, +25°C, unless otherwise noted.)
PARAMETER Small-Signal -3dB Bandwidth Medium-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Small-Signal 0.1dB Bandwidth Medium-Signal 0.1dB Bandwidth Large-Signal 0.1dB Bandwidth SYMBOL BWSS BWMS BWLS BW0.1dB-SS BW0.1dB-MS BW0.1dB-LS VOUT_ 20mVp-p VOUT_ 200mVp-p VOUT_ 2Vp-p VOUT_ 20mVp-p VOUT_ 200mVp-p VOUT_ 2Vp-p CONDITIONS +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V +1V/V +2V/V UNITS
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
ELECTRICAL CHARACTERISTICS-DUAL SUPPLIES (continued)
(VCC +3V, -3V, +3V, AGND DGND VIN_= VOSDFILL_ AGND, +1V/V, +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS VOUT_ step +1V/V VOUT_ step +2V/V Settling Time Switching Transient (Glitch) (Note Power-Supply Rejection Ratio Differential Gain Error (Note Differential Phase Error (Note Crosstalk, Hostile Off-Isolation, Input Output Input Noise Voltage Density Input Capacitance Disabled Output Capacitance Capacitive Load Output Peaking Output Impedance
ZOUT
MAX4358
UNITS
Slew Rate
V/µs +1V/V +2V/V +1V/V +2V/V 0.03 0.08 -112 degrees µVRMS
0.1%
step
100kHz 1MHz 6MHz 6MHz CIN_ Amplifier disable mode 6MHz
6MHz
Output enabled Output disabled
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
ELECTRICAL CHARACTERISTICS-SINGLE SUPPLY
(VCC +5V, +5V, AGND DGND VIN_ VOSDFILL_ 1.75V, AGND, +1V/V, +25°C, unless otherwise noted.)
PARAMETER Small-Signal -3dB Bandwidth Medium-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Small-Signal 0.1dB Bandwidth Medium-Signal 0.1dB Bandwidth Large-Signal 0.1dB Bandwidth Slew Rate Settling Time Switching Transient (Glitch) Power-Supply Rejection Ratio Differential Gain Error (Note Differential Phase Error (Note Crosstalk, Hostile Off-Isolation, Input-toOutput Input Noise Voltage Input Capacitance Disabled Output Capacitance Capacitive Load Output Peaking Output Impedance ZOUT 6MHz Output enabled Output disabled CIN_ Amplifier disable mode 100kHz 1MHz 6MHz 6MHz 6MHz SYMBOL BWSS BWMS BWLS BW0.1dB-SS BW0.1dB-MS BW0.1dB-LS 0.1% CONDITIONS VOUT_ 20mVp-p VOUT 200mVp-p VOUT 1.5Vp-p VOUT 20mVp-p VOUT_ 200mVp-p VOUT_ 1.5Vp-p VOUT_ step, +1V/V VOUT_ step 0.03 0.15 0.06 -110 UNITS V/µs degrees µVRMS
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
SWITCHING CHARACTERISTICS
((VCC VEE) +4.5V +10.5V, +2.7V +5.5V, DGND AGND VIN_ VOSDFILL_ dual supplies, VIN_ VOSDFILL_ +1.75V single supply, AGND, 100pF, +1V/V, TMIN TMAX, unless otherwise noted. Typical values +25°C.
PARAMETER Delay: UPDATE Video Delay: UPDATE AOUT Delay: OSDKEY_ Output Delay: SCLK DOUT Valid Delay: Output Disable Delay: Output Enable Setup: SCLK Setup: SCLK Hold Time: SCLK Minimum High Time: SCLK Minimum Time: SCLK Minimum Time: UPDATE Setup Time: UPDATE SCLK Hold Time: SCLK UPDATE Setup Time: MODE SCLK Hold Time: MODE SCLK Minimum Time: RESET Delay: RESET SYMBOL tPdUdVo tPdUdAo tPdOkVo/ tPdOfVo tPdDo tPdHOeVo tPdLOeVo tSuCe tSuDi tHdDi tMnHCk tMnLCk tMnLUd tSuHUd tHdHUd tSuMd tHdMd tMnLRst tPdRst pulldown AGND Rising edge UPDATE falling edge SCLK Falling edge SCLK falling edge UPDATE Minimum time from clock edge MODE with valid data clocking Minimum time from clock edge MODE with valid data clocking CONDITIONS 0.5V step MODE time AOUT after UPDATE VOUT 0.5V step UNITS
Logic state change DOUT active SCLK edge VOUT 0.5V, pulldown AGND Output disabled, pulldown AGND, 0.5V
Note Associated output voltage determined multiplying input voltage specified gain (AV) adding output offset voltage. Gain specified OSDFILL_ signal paths. Note Logic level characteristics apply following pins: DIN, DOUT, SCLK, UPDATE, RESET, A3-A0, MODE, AOUT, OSDKEY_. Note Switching transient settling time guaranteed settling time (tS) specification. Switching transient result updating switch matrix. Note Input test signal: 3.58MHz sine wave amplitude 40IRE superimposed linear ramp 100IRE). unit video-signal amplitude developed International Radio Engineers: 140IRE 1.0V. Note devices 100% production tested +25°C. Specifications over temperature limits guaranteed design.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Symbol Definitions
SYMBOL TYPE Signal Signal Signal Signal Signal Signal Signal Signal Signal Signal Property Property Property Property Property Property Property Property Property DESCRIPTION Address Valid Flag (AOUT) Clock Enable (CE) Clock (SCLK) Serial Data (DIN) Serial Data Output (DOUT) MODE Output enable Reset Input (RESET) UPDATE Video (OUT) High- Low-to-High transition Hold Low- High-to-Low transition Minimum Maximum Propagation delay Setup Transition Width
Naming Conventions:
parameters with time units given designation, with appropriate subscript modifiers. Propagation delays clocked signals from active edge clock. Propagation delay level sensitive signals from input output point transition. Setup Hold times measured from point signal transition point clocking signal transition. Setup time refers signal that must stable before active clock edge, even signal latched clocked itself. Hold time refers signal that must stable during after active clock edge, even signal latched clocked. Propagation delays unobservable internal signals modified setup hold designations applied observable signals.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Timing Diagram
DATA CONTROL TIMING tSuCe SCLK tMnHCk tMnLCk DOUT tPdDo UPDATE tMnLUd tHdUd tWTrVo OUT_ AOUT tPdUdAo tPdHOeVo OUTPUT ENABLE tPdLOeVo tPdRstVo tMulRst Hi-Z tPdUdVo Hi-Z tSuUd tSuDi tHdDi tHdCe TIMING PARAMETER DEFINITIONS NAME tHdDi tMnHCk tMnLCk tMnLUd tSuHUd Valid tHdHUd Valid tPdDiDo tMnMd tMxTr tMnLRst tPdRstVo DESCRIPTION Hold Time: Clock Data High Time: Time: Time: Update Setup Time: UPDATE with UPDATE High Setup Time: UPDATE with UPDATE Hold Time: UPDATE with UPDATE high Hold Time: UPDATE with UPDATE Asynchronous Delay: Data Data Time: MODE Rise Time: Clk, Update Time: Reset Delay: Reset Video Output
Rst: RESET
TIMING PARAMETER DEFINITIONS NAME DESCRIPTION tPdUdVo Delay: Update Video tPdUdAo Delay: UPDATE Aout Delay: Video Output tPdOkVo tPdOfVo Delay: Fill Video Output Delay: Data tPdDo tPdHOeVo Delay: Output Enable Video Output tPdLOeVo tSuCe tSuDi (High: Disable) Delay: Output Enable Video Output (Low: Enable) Setup: Clock Enable Clock Setup Time: Data Clock
OSD: FILL TIMING VIDEO SOURCE (SELECTED INPUT)
OSDFILLi OSDKEYi OUTi tPdHOkVo
VIDEO OUTPUT (WITH SUPERIMPOSED OSD) tPdLOkVo tPdLOfVo
Figure Timing Diagram
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Dual Supplies
(VCC -5V, +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc01
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc02
SMALL-SIGNAL FREQUENCY RESPONSE
NORMALIZED GAIN (dB) +2V/V +1V/V
MAX4358 toc03
NORMALIZED GAIN (dB)
+2V/V
NORMALIZED GAIN (dB)
+1V/V
+2V/V
+1V/V
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc04
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc05
SMALL-SIGNAL FREQUENCY RESPONSE
+1V/V NORMALIZED GAIN (dB) +2V/V
MAX4358 toc06
NORMALIZED GAIN (dB)
+2V/V
NORMALIZED GAIN (dB)
+1V/V
+2V/V
+1V/V
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
LARGE-SIGNAL GAIN FLATNESS FREQUENCY
MAX4358 toc07
LARGE-SIGNAL GAIN FLATNESS FREQUENCY
MAX4358 toc08
LARGE-SIGNAL FREQUENCY RESPONSE +1V/V)
NORMALIZED GAIN (dB) 15pF 30pF
MAX4358 toc09
NORMALIZED GAIN (dB) -0.1 -0.2 -0.3 FREQUENCY (MHz) +2V/V +1V/V
NORMALIZED GAIN (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7
45pF
+1V/V
+2V/V
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -5V, +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE +2V/V)
NORMALIZED GAIN (dB) FREQUENCY (MHz) 1000 15pF 30pF 45pF
MAX4358 toc10
MAX4358
MEDIUM-SIGNAL FREQUENCY RESPONSE +1V/V)
MAX4358 toc11
MEDIUM-SIGNAL FREQUENCY RESPONSE +2V/V)
NORMALIZED GAIN (dB) 15pF 30pF 45pF
MAX4358 toc12
NORMALIZED GAIN (dB) FREQUENCY (MHz) 15pF 30pF 45pF
1000
FREQUENCY (MHz)
1000
CROSSTALK FREQUENCY
MAX4358 toc13
CROSSTALK FREQUENCY
+2V/V
MAX4358 toc14
DISTORTION FREQUENCY
+1V/V DISTORTION (dBc) -100 HARMONIC HARMONIC
MAX4358 toc15
+1V/V CROSSTALK (dB) -100 FREQUENCY (MHz)
CROSSTALK (dB)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
DISTORTION FREQUENCY
MAX4358 toc16
ENABLED-OUTPUT IMPEDANCE FREQUENCY
MAX4358 toc17
DISABLED OUTPUT IMPEDANCE FREQUENCY
MAX4358 toc18
DISTORTION (dBc) -100
+2V/V
1000
100k OUTPUT IMPEDANCE
OUTPUT IMPEDANCE
HARMONIC
HARMONIC
FREQUENCY (MHz) 1000 FREQUENCY (MHz) 1000
FREQUENCY (MHz) 1000
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -5V, +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
ISOLATION FREQUENCY
MAX4358 toc19
POWER-SUPPLY REJECTION RATIO FREQUENCY
MAX4358 toc20
INPUT VOLTAGE NOISE FREQUENCY
MAX4358 toc21
ISOLATION (dB)
1000
PSRR (dB)
-100
VOLTAGE NOISE (nVHz) 100k FREQUENCY (Hz) 100M
-110 -120 100k FREQUENCY (Hz) 100M 100k FREQUENCY (Hz)
LARGE-SIGNAL PULSE RESPONSE +1V/V)
LARGE-SIGNAL PULSE RESPONSE +2V/V)
MAX4358 toc22
MAX4358 toc23
MEDIUM-SIGNAL PULSE RESPONSE +1V/V)
MAX4358 toc24
INPUT 1V/div
INPUT 500mV/div
INPUT 100mV/div
OUTPUT 1V/div
OUTPUT 1V/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
MEDIUM-SIGNAL PULSE RESPONSE +2V/V)
MAX4358 toc25
SWITCHING TIME +1V/V)
MAX4358 toc26
SWITCHING TIME +2V/V)
MAX4358 toc27
INPUT 50mV/div
VUPDATE 5V/div
VUPDATE 5V/div
OUTPUT 100mV/div
VOUT 500mV/div
VOUT 1V/div
20ns/div
20ns/div
20ns/div
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -5V, +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
MAX4358
SWITCHING TRANSIENT (GLITCH) +1V/V)
SWITCHING TRANSIENT (GLITCH) +2V/V)
OFFSET VOLTAGE DISTRIBUTION
MAX4358 toc30
MAX4358 toc28
MAX4358 toc29
VUPDATE 5V/div
VUPDATE 5V/div
VOUT 25mV/div
VOUT 25mV/div
20ns/div
20ns/div
OFFSET VOLTAGE (mV)
DIFFERENTIAL GAIN PHASE VOLTAGE 150)
MAX4358 toc31
DIFFERENTIAL GAIN PHASE VOLTAGE
DIFF GAIN 0.015 0.010 0.005 0.000 -0.005
MAX4358 toc32
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +1V/V)
MAX4358 toc33
DIFF GAIN
0.08 0.06 0.04 0.02 0.00 -0.02
INPUT 1V/div
0.15 0.10 0.05 0.00 -0.05 0.05 0.04 0.03 0.02 0.01 0.00 -0.01 DIFF PHASE DIFF PHASE
OUTPUT 1V/div
20ns/div
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +2V/V)
MAX4358 toc34
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +1V/V)
MAX4358 toc35
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +2V/V)
MAX4358 toc36
INPUT 500mV/div
INPUT 100mV/div
INPUT 50mV/div
OUTPUT 1V/div
OUTPUT 100mV/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -5V, +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
GAIN TEMPERATURE
0.15 NORMALIZED GAIN (dB) 0.10 0.05 -0.05 -0.10 -0.15 -0.20 TEMPERATURE (°C) +1V/V +2V/V
MAX4358 toc37
RESET DELAY CRESET
MAX4358 toc38
SWITCHING TRANSIENT (100IRE LEVEL SWITCH) +2V/V)
0.20
100m RESET DELAY 100µ 100n 100p
MAX4358 toc39
VOSDKEY0 5V/div
100IRE
VOUT0 500mV/div 0IRE 100n 100µ CRESET
50ns/div
SWITCHING 3.58MHz SIGNAL +2V/V)
SUPPLY CURRENT TEMPERATURE
MAX4358 toc41
MAX4358 toc40
SUPPLY CURRENT (mA)
VOSDKEY0 5V/div
VOUT0 500mV/div
50ns/div
TEMPERATURE (°C)
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Typical Operating Characteristics-Dual Supplies
(VCC -3V, +3V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc42
MAX4358
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc43
SMALL-SIGNAL FREQUENCY RESPONSE
NORMALIZED GAIN (dB) +2V/V +1V/V
MAX4358 toc44
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
+1V/V
+1V/V
+2V/V
+2V/V
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc45
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc46
SMALL-SIGNAL FREQUENCY RESPONSE
NORMALIZED GAIN (dB) +2V/V +1V/V
MAX4358 toc47
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
+2V/V
+2V/V
+1V/V
+1V/V
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
LARGE-SIGNAL GAIN FLATNESS FREQUENCY
MAX4358 toc48
LARGE-SIGNAL GAIN FLATNESS FREQUENCY
MAX4358 toc49
LARGE-SIGNAL FREQUENCY RESPONSE +1V/V)
NORMALIZED GAIN (dB) 15pF 30pF 45pF
MAX4358 toc50
NORMALIZED GAIN (dB) -0.1 FREQUENCY (MHz) +2V/V +1V/V
NORMALIZED GAIN (dB) -0.1 -0.2 -0.3 -0.4
+1V/V
+2V/V
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -3V, +3V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE +2V/V)
MAX4358 toc51
MEDIUM-SIGNAL FREQUENCY RESPONSE
+1V/V)
MAX4358 toc52
MEDIUM-SIGNAL FREQUENCY RESPONSE
+2V/V) NORMALIZED GAIN (dB) 15pF 30pF 45pF
MAX4358 toc53
NORMALIZED GAIN (dB) FREQUENCY (MHz) 15pF 30pF 45pF
NORMALIZED GAIN (dB) 30pF 15pF 45pF
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
CROSSTALK FREQUENCY
MAX4358 toc54
CROSSTALK FREQUENCY
MAX4358 toc55
DISTORTION FREQUENCY
DISTORTION (dB) -100 HARMONIC 1V/V HARMONIC
MAX4358 toc56
CROSSTALK (dB)
CROSSTALK (dB)
1V/V
2V/V
100k
FREQUENCY (Hz)
100M
100k
FREQUENCY (Hz)
100M
100k
100M
FREQUENCY (Hz)
DISTORTION FREQUENCY
DISTORTION (dB) -100 100k 100M FREQUENCY (Hz) HARMONIC 2V/V HARMONIC
MAX4358 toc57
ENABLED OUTPUT IMPEDANCE FREQUENCY
MAX4358 toc58
DISABLED OUTPUT IMPEDANCE FREQUENCY
MAX4358 toc59
1000
100k OUTPUT IMPEDANCE
OUTPUT IMPEDANCE
FREQUENCY (MHz) 1000
FREQUENCY (MHz)
1000
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -3V, +3V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
ISOLATION FREQUENCY
MAX4358 toc60
MAX4358
POWER-SUPPLY REJECTION RATIO FREQUENCY
MAX4358 toc61
INPUT VOLTAGE NOISE FREQUENCY
MAX4358 toc62
ISOLATION (dB)
1000
PSRR (dB)
-100
VOLTAGE NOISE (nV/Hz)
-110 -120 100k FREQUENCY (Hz) 100M 100k FREQUENCY (Hz) 100M
100k FREQUENCY(Hz)
LARGE-SIGNAL PULSE RESPONSE +1V/V)
MAX4358 toc63
LARGE-SIGNAL PULSE RESPONSE +2V/V)
MAX4358 toc64
MEDIUM-SIGNAL PULSE RESPONSE +1V/V)
MAX4358 toc65
INPUT 1V/div
INPUT 500mV/div
INPUT 100mV/div
OUTPUT 1V/div
OUTPUT 1V/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
MEDIUM-SIGNAL PULSE RESPONSE +2V/V)
MAX4358 toc66
SWITCHING TIME +1V/V)
MAX4358 toc67
SWITCHING TIME +2V/V)
MAX4356 toc68
INPUT 50mV/div
VUPDATE 3V/div
VUPDATE 3V/div
OUTPUT 100mV/div
VOUT 500mV/div
VOUT 1V/div
20ns/div
20ns/div
20ns/div
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -3V, +3V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
SWITCHING TRANSIENT GLITCH +1V/V) SWITCHING TRANSIENT GLITCH +2V/V)
OFFSET VOLTAGE DISTRIBUTION
MAX4358 toc71
MAX4358 toc69
MAX4358 toc70
VUPDATE 3V/div
VUPDATE 3V/div
VOUT 25mV/div
VOUT 25mV/div
20ns/div
20ns/div
OFFSET VOLTAGE (mV)
DIFFERENTIAL GAIN PHASE 150)
DIFFERENTIAL GAIN
DIFFERENTIAL GAIN
DIFFERENTIAL GAIN PHASE
MAX4358 toc72
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +1V/V)
MAX4358 toc73
MAX4358 toc74
0.25 0.15 0.05 -0.05 0.25 0.15 0.05 -0.05
0.15 0.05
-0.05 0.25 0.15 0.05 -0.05
INPUT 1V/div
DIFFERENTIAL PHASE
DIFFERENTIAL PHASE
OUTPUT 1V/div
20ns/div
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +2V/V)
MAX4358 toc75
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +1V/V)
MAX4358 toc76
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF, +2V/V)
MAX4358 toc77
INPUT 500mV/div
INPUT 100mV/div
INPUT 50mV/div
OUTPUT 1V/div
OUTPUT 100mV/div
OUTPUT 100mV/div
20ns/div
20ns/div
20ns/div
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Typical Operating Characteristics-Dual Supplies (continued)
(VCC -3V, +3V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
SWITCHING TRANSIENT (100IRE LEVEL SWITCH)
MAX4356 toc79
MAX4358
GAIN TEMPERATURE
MAX4356 toc78
RESET DELAY CRESET
100m RESET DELAY 100µ VOUT0 500mV/div
+2V/V VOSDKEY0 3V/div
0.15 NORMALIZED GAIN (dB) 0.10 0.05 -0.05 -0.10 +1V/V -0.15 -0.20 +2V/V
100n 100p 100n 100µ CRESET 50ns/div
TEMPERATURE (°C)
SWITCHING 3.58MHz SIGNAL
+2V/V VOSDKEY0 3V/div
MAX4358 toc81
VOUT0 500mV/div
50ns/div
MAX4358 toc80
0.20
100IRE
0IRE
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Single Supply
(VCC +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc82
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc83
SMALL-SIGNAL FREQUENCY RESPONSE
NORMALIZED GAIN (dB)
MAX4358 toc84
NORMALIZED GAIN (dB) FREQUENCY (MHz)
NORMALIZED GAIN (dB)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
LARGE-SIGNAL FREQUENCY RESPONSE
MAX4358 toc85
MEDIUM-SIGNAL FREQUENCY RESPONSE
MAX4358 toc86
SMALL-SIGNAL FREQUENCY RESPONSE
NORMALIZED GAIN (dB)
MAX4358 toc87
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
LARGE-SIGNAL GAIN FLATNESS FREQUENCY
MAX4358 toc88
LARGE-SIGNAL GAIN FLATNESS FREQUENCY
NORMALIZED GAIN (dB) -0.1 -0.2 -0.3 -0.4
MAX4358 toc89
LARGE-SIGNAL FREQUENCY RESPONSE +1V/V)
NORMALIZED GAIN (dB) 15pF 30pF 45pF
MAX4358 toc90
NORMALIZED GAIN (dB) -0.1 FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
1000
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Single Supply (continued)
(VCC +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
MEDIUM-SIGNAL FREQUENCY RESPONSE +1V/V)
MAX4358 toc91
CROSSTALK FREQUENCY
MAX4358 toc92
DISTORTION FREQUENCY
DISTORTION (dBc) -100 HARMONIC HARMONIC
MAX4358 toc93
NORMALIZED GAIN (dB) FREQUENCY (MHz) 15pF 30pF 45pF
CROSSTALK (dB) -100
1000
100k
FREQUENCY (Hz)
100M
100k
100M
FREQUENCY (Hz)
ENABLED OUTPUT IMPEDANCE FREQUENCY
MAX4358 toc94
DISABLED OUTPUT IMPEDANCE FREQUENCY
MAX4358 toc95
ISOLATION FREQUENCY
ISOLATION (dB) -100
MAX4358 toc96
1000
100k OUTPUT IMPEDANCE
OUTPUT IMPEDANCE
FREQUENCY (MHz) 1000
-110 -120 FREQUENCY (MHz) 1000 100k FREQUENCY (Hz) 100M
POWER-SUPPLY REJECTION RATIO FREQUENCY
MAX4358 toc97
INPUT VOLTAGE NOISE FREQUENCY
MAX4358 toc98
LARGE-SIGNAL PULSE RESPONSE
MAX4358 toc99
1000
VOLTAGE NOISE (NV/Hz)
INPUT 1V/div
PSRR (dB)
OUTPUT 1V/div
100k FREQUENCY (Hz) 100M
100k 20ns/div FREQUENCY (Hz)
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Single Supply (continued)
(VCC +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
MEDIUM-SIGNAL PULSE RESPONSE
MAX4358 toc100
SWITCHING TIME
MAX4358 toc101
INPUT 100mV/div
VUPDATE 5V/div
OUTPUT 100mV/div
VOUT 500mV/div
20ns/div
20ns/div
SWITCHING TRANSIENT (GLITCH)
MAX4358 toc102
OFFSET VOLTAGE HISTOGRAM
MAX4358 toc103
VUPDATE 5V/div
VOUT 25mV/div
20ns/div OFFSET VOLTAGE (mV)
DIFFERENTIAL GAIN PHASE 150)
0.25 0.20 DIFFERENTIAL 0.15 GAIN 0.10 0.05 -0.05
MAX4358 toc104
DIFFERENTIAL GAIN PHASE
0.04 DIFFERENTIAL 0.03 0.02 GAIN 0.01 -0.01
MAX4358 toc105
0.30 0.25 0.20 DIFFERENTIAL 0.15 PHASE 0.10 -0.05 -0.10
0.10 0.08 0.06 DIFFERENTIAL 0.04 PHASE 0.02 -0.02
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Typical Operating Characteristics-Single Supply (continued)
(VCC +5V, AGND DGND VIN_ AGND, +1V/V, +25°C, unless otherwise noted.)
LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF)
MAX4358 toc106
MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD 30pF)
MAX4358 toc107
INPUT 1V/div
INPUT 100mV/div
INPUT 1V/div
OUTPUT 100mV/div
20ns/div
20ns/div
GAIN TEMPERATURE
MAX4358 toc108
RESET DELAY CRESET
RESET DELAY 100m 100µ
MAX4358 toc109
0.20 0.15 NORMALIZED GAIN (dB) 0.10 0.05 -0.05 -0.10 -0.15 -0.20
100n 100p 100n 100µ CRESET TEMPERATURE (°C)
SWITCHING TRANSIENT (100IRE LEVEL SWITCH)
MAX4358 toc110
SWITCHING 3.58MHz SIGNAL
MAX4358 toc111
VOSDKEY0 5V/div
VOSDKEY0 5V/div
100IRE VOUT0 250mV/div 0IRE VOUT0 250mV/div
50ns/div
50ns/div
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Description
127, 129, 131, 133, 135, 137, 139, 141, 107, 108, 109, 126, 128, 130, 132, 134, 136, 138, 140, 102, NAME FUNCTION
IN0-IN31
Buffered Analog Inputs
AGND
Analog Ground
A3-A0 DGND AOUT MODE SCLK UPDATE
Positive Analog Supply. Bypass each with 0.1µF capacitor AGND. Connect single 10µF capacitor from AGND. Address Programming Inputs. Connect DGND select address individual output address mode. Table Digital Ground Address Recognition Output. AOUT drives after successful chip address recognition. Serial Interface Mode Select Input. Drive high Complete Matrix Mode (Mode drive Individual Output Address Mode (Mode Serial Data Input. Data clocked-in falling edge SCLK. Serial Clock Input Update Input. Drive UPDATE transfer data from Mode Registers switch matrix. Asynchronous Reset Input/Output. Drive RESET initiate hardware reset. analog outputs disabled. Additional power-on reset delay connecting small capacitor from RESET DGND. Clock Enable Input. Drive enable serial data interface. Serial Data Output. Complete Matrix Mode, data clocked through 112bit Matrix Control shift register. Individual Output Address Mode, data passes directly DOUT. Digital Control Input. Control fast Insertion multiplexer routing signal output buffers. logic high routes programmed analog input signal output buffer. logic routes dedicated OSDFILL_ input corresponding output buffer. Digital Logic Supply. Bypass with 0.1µF capacitor DGND. Buffered Analog Outputs. Gain individually programmable +1V/V +2V/V serial interface. Outputs individually disabled (high impedance). power-up, assertion RESET, outputs disabled. Negative Analog Supply. Bypass each with 0.1µF capacitor AGND. Connect single 10µF capacitor from AGND. Dedicated Analog Signal Buffered Inputs. each output buffer amplifier. OSDFILLi input signal routed output buffer amplifier OUTi when corresponding OSDKEYi low.
RESET DOUT
55-70
OSDKEY0- OSDKEY15 OUT0- OUT15 OSDFILL15 -OSDFILL0
101, 103, 100, 104, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Functional Diagram
OSDFILL1 OSDFILL0 OSDFILL15
MAX4358
MAX4358 ENABLE/DISABLE OUT0
SWITCH MATRIX
OUT1
OUT2
IN31 RESET POWER-ON RESET THERMAL SHUTDOWN
OUT15
DISABLE OUTPUTS SCLK UPDATE
AGND DGND DOUT
DECODE LOGIC SERIAL INTERFACE LATCHES MATRIX REGISTER BITS UPDATE REGISTER BITS +1V/V +2V/V A0-A3 MODE OSDKEY0 OSDKEY15 OSDKEY1
AOUT
Detailed Description
MAX4358 highly integrated nonblocking video crosspoint switch matrix inputs outputs buffered, with outputs able drive standard reverse-terminated video loads. three-wire interface programs switch matrix initializes with single update signal. unique serial interface operates modes, Complete Matrix Mode (Mode Individual Output Address Mode (Mode signal path MAX4358 from buffered inputs (IN0-IN31), through switching matrix, buffered output amplifiers, presented outputs (OUT0-OUT15) (Functional Diagram). other functional blocks serial interface control logic. Each functional blocks described detail below.
Analog Outputs
MAX4358 outputs high-speed amplifiers capable driving back-terminated) loads. gain, +1V/V +2V/V, selectable programming serial control word. Amplifier compensation automatically optimized maximize bandwidth each gain selection. Each output individually enabled disabled serial control word. When disabled, output high impedance presenting typically load, output capacitance, allowing multiple outputs connected together building large arrays. power-up asynchronous RESET) outputs initialized disabled state avoid output conflicts large array configurations. programming operation MAX4358 output referred. Outputs configured individually connect analog inputs, programmed desired gain +1V/V +2V/V), enabled disabled high-impedance state.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Table Operation Truth Table
UPDATE SCLK DOUT MODE AOUT RESET OPERATION/COMMENTS change logic Data clocked negative edge SCLK into 112bit Complete Matrix Mode register. DOUT supplies original data SCLK pulses later. Data serial 112-bit Complete Matrix Mode register transferred into parallel latches which control switching matrix. Data routed Individual Output Address Mode shift register. also connected directly DOUT that devices serial addressed parallel. 4-bit chip address A3-A0 compared D14-D11. equal, remaining bits Individual Output Address Mode Register decoded, allowing reprogramming single output. AOUT signals successful individual matrix update. Asynchronous reset. outputs disabled. Other logic remains unchanged.
Di-112
Note: Don't Care
Analog Inputs
MAX4358 offers analog input channels. Each input buffered before crosspoint matrix switch, allowing input cross-connect outputs. input buffers voltage feedback amplifiers with high-input impedance input bias current. This allows very simple input clamp circuits.
Switch Matrix
MAX4358 individual T-switches making switch matrix. switching matrix 100% nonblocking, which means that input routed output. switch matrix programming output-referred. Each output connected analog inputs. input routed outputs with signal degradation.
OSDFILL OSDKEY Inputs
Intended on-screen display insertion, OSDFILL inputs buffered analog signal inputs that routed dedicated output buffer through fast MUX. signal presented output buffer selected from programmed analog input signal (IN_) dedicated OSDFILL input signal.
Digital Interface
digital interface consists following pins: DIN, DOUT, SCLK, AOUT, UPDATE, A3-A0, MODE, RESET. serial-data input, DOUT serialdata output.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
A0-A3 CHIP ADDRESS
SCLK MODE
16-BIT INDIVIDUAL OUTPUT ADDRESS MODE REGISTER SCLK MODE
MODE DATA ROUTING GATE MODE
DOUT
112-BIT COMPLETE MATRIX MODE REGISTER OUTPUT ADDRESS DECODE MODE
AOUT UPDATE 112-BIT PARALLEL LATCH SWITCH DECODE SWITCH MATRIX OUTPUT ENABLE
Figure Serial Interface Block Diagram
SCLK serial-data clock which clocks data into data input registers (Figure Data loaded each falling edge SCLK. DOUT data shifted 112-bit Complete Matrix Mode register (Mode passes directly DOUT when Individual Output Address Mode (Mode falling edge UPDATE latches data programs matrix. When using Individual Output Address Mode, address recognition output AOUT drives when control-word bits match address programming inputs (A3-A0) UPDATE (Table Table operation truth table.
Mode. These distinct programming modes selected toggling single MODE high low. Both modes operate with same physical board layout. This flexibility allows initial programming daisy-chaining sending long data word while still being able immediately address update individual outputs matrix. Individual Output Address Mode (MODE Drive MODE logic select Mode Individual outputs programmed serial interface with single 16-bit control word. control word consists don't care MSB, chip address bits, output address bits, output enable/disable bit, output gain-set bit, input address bits (Table through Table Figure
Programming Matrix
MAX4358 offers programming modes: Individual Output Address Mode Complete Matrix
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Table 16-Bit Serial Control Word Assignments (Mode Individual Output Address Mode)
(MSB) (LSB) NAME Address Address Address Address Output Address Output Address Output Address Output Address Output Enable Gain Input Address Input Address Input Address Input Address Input Address input channel select address output buffer address Enable output, disable, enable. Gain Select output buffer, gain +1V/V, gain +2V/V. input channel select address selected chip address output buffer address Don't Care selected chip address FUNCTION
Mode data passes directly DOUT through data routing gate (Figure this configuration, 16-bit control word simultaneously sent chips array addresses.
On-Screen-Display (OSD) Fast
MAX4358 features asynchronous dedicated each output buffer amplifier. Fast 40ns switching times enable pixel switching on-screen-display (OSD) information such text other picture-in-picture signals (Figure OSDFILL_ inputs buffered analog inputs connected each dedicated Mux. Drive dedicated OSDKEY_ digital input switch between programmed input from crosspoint switch matrix OSDFILL_. logic OSDKEYi routes analog signal OSDFILLi OUTi output buffer. OSDKEY_ control does affect crosspoint switch matrix programming output-buffer enable/disable gain-set programming.
Complete Matrix Mode (MODE
Drive MODE logic high select Mode single 112-bit control word, consisting sixteen 7-bit control words, programs outputs. 112-bit control word's first 7-bit control word (MSBs) programs output last 7-bit control word (LSBs) programs output (Table Figures Data clocked into 112-bit complete matrix mode register latched falling edge UPDATE, outputs immediately updated. Initialization String Complete Matrix Mode (Mode convenient programming matrix power-up. large matrix consisting many MAX4358s, devices programmed sending single stream equal bits where number MAX4358 devices bus. first 112-bit data word programs last in-line MAX4358 (see Matrix Programming under Applications Information section).
RESET
MAX4358 features asynchronous bidirectional RESET with internal pullup resistor VDD. When RESET pulled either internal circuitry, driven externally, analog output buffers latched into high-impedance state. After RESET released, output buffers remain disabled. outputs enabled sending 112-bit data word 16-bit individual output address word. reset initiated from three sources. RESET driven external circuitry initiate reset, RESET pulled internal circuitry during power-up (poweron-reset) thermal shutdown.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
16-BIT INDIVIDUAL OUTPUT ADDRESS MODE: FIRST DON'T CARE BIT, LAST BITS CLOCKED INTO WHEN MODE CREATES ADDRESS WORD; ADDRESS A3-A0 COMPARED DIN14-DIN11 WHEN UPDATE LOW; EQUAL, ADDRESSED OUTPUT UPDATED
UPDATE tSuMd MODE tHdMd
SCLK
INPUT ADDRESS (MSB) INPUT ADDRESS (LSB) GAIN +1V/V INPUT ADDRESS INPUT ADDRESS INPUT ADDRESS OUTPUT ADDRESS OUTPUT ADDRESS OUTPUT ADDRESS OUTPUT ADDRESS OUTPUT ENABLE ADDRESS ADDRESS ADDRESS ADDRESS DON'T CARE
ADDRESS
OUTPUT ADDRESS
OUTPUT ENABLED, +1V/V, CONNECTED INPUT
EXAMPLE 16-BIT SERIAL CONTROL WORD OUTPUT CONTROL INDIVIDUAL OUTPUT ADDRESS MODE
Figure Mode Individual Output Address Mode Timing Programming Example
Since driving RESET only clears output-bufferenable matrix control latches, RESET used disable outputs simultaneously. data been loaded into 112-bit complete matrix mode register, single UPDATE restores previous matrix control settings.
Reset RESET Capacitance graph Typical Operating Characteristics).
Thermal Shutdown
MAX4358 features thermal shutdown protection with temperature hysteresis. When temperature exceeds 150°C, MAX4358 pulls RESET low, disabling output buffer. When cools 20°C, RESET pulldown deasserted, output buffers remain disabled until device programmed again.
Power-On-Reset
power-on-reset ensures output buffers disabled state when power initially applied. voltage comparator generates power-on-reset. When voltage less than 2.5V, poweron-reset comparator pulls RESET internal circuitry. digital-supply voltage ramps crossing 2.5V, MAX4358 holds RESET 40ns (typ). Connecting small capacitor from RESET DGND extends power-on-reset delay. (see Power-On-
Applications Information
Building Large Video-Switching Systems
MAX4358 easily used create larger switching matrices. number required implement matrix function number input channels, number outputs required, whether array needs nonblocking not.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
tMnLCk SCLK tMnHCk
tSuDi
tHdDi
tSuHUd tPdDo
tMnLUd
UPDATE
DOUT
SCLK EXAMPLE 7-BIT SERIAL CONTROL WORD OUTPUT CONTROL
NEXT CONTROL WORD
INPUT ADDRESS (MSB)
Figure 7-Bit Control Word Programming Example (Mode Complete Matrix Mode)
UPDATE
7-BIT CONTROL WORD
MODE
OUT2
OUT1
OUT0 TIME
MOST SIGNIFICANT BITS 7-BIT CONTROL WORD SHIFTED FIRST; I.E. OUT15, THEN OUT14, ETC. LAST BITS SHIFTED PRIOR UPDATE FALLING EDGE PROGRAM OUT0.
Figure Mode Complete Matrix Mode Programming
INPUT ADDRESS (LSB)
INPUT ADDRESS
INPUT ADDRESS
INPUT ADDRESS
ENABLE OUTPUT
GAIN +1V/V
OUTPUT ENABLED, +1V/V, CONNECTED INPUT
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Table Chip Address Programming 16-Bit Control Word (Mode Individual Output Address Mode)
ADDRESS (MSB) (LSB) Chip Address (Hex) ADDRESS Chip Address (Decimal)
Table Chip Address A3-A0 Programming
DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND ADDRESS Chip Address (Hex) Chip Address (Decimal)
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Table Output Selection Programming
OUTPUT ADDRESS (MSB) (LSB) SELECTED OUTPUT
INPUTS (0-31)
MAX4358
MAX4358
INPUTS (32-63)
MAX4358
MAX4358
INPUTS (64-95)
MAX4358
MAX4358
INPUTS (96-127)
MAX4358
MAX4358
most straightforward technique implementing nonblocking matrices arrange building blocks grid. inputs connect each vertical bank devices parallel with other banks. outputs each building block vertical column connect together wired-OR configuration. Figure 6.shows 128-input, 32-output, nonblocking array using eight MAX4358 crosspoint devices. wire-OR connection outputs shown diagram possible because outputs devices placed disabled, high-impedance-output state. This disable state output buffers designed maximum impedance frequency while maintaining output capacitance. These characteristics minimize adverse loading effects from disabled outputs. Larger arrays constructed extending this connection technique more devices.
Driving Capacitive Load
OUTPUTS (0-15) OUTPUTS (16-31)
Figure Nonblocking Matrix Using Crosspoint Devices
Figure shows implementation requiring many outputs wired together. This creates situation where each output buffer sees only normal load impedance, also disabled impedance other outputs. This impedance resistive capacitive component. resistive components reduce total effective load driving output.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Table Input Selection Programming
INPUTS (0-31) MAX4358
INPUT ADDRESS (MSB)
(LSB)
SELECTED INPUT
INPUTS (32-63))
MAX4358
MAX4358 OUTPUTS (0-15)
INPUTS (64-95)
MAX4358
INPUTS (96-127)
MAX4358
Figure Nonblocking Matrix with Reduced Capacitive Loading
OPTIMAL ISOLATION RESISTANCE CAPACITIVE LOAD
CAPACITIVE LOAD (pF)
Figure Optimal Isolation Resistor Capacitive Load
Total capacitance capacitance disabled outputs function size matrix. Also, size matrix increases, length board traces increases, adding more capacitance. output buffers have been designed drive more than 30pF capacitance while still maintaining good response. Depending size array, capacitance seen output exceed this amount. There several ways improve situation. first more building-block crosspoint devices reduce number outputs that need wired together (see Figure
ISOLATION RESISTANCE
Figure additional devices placed second bank multiplex signals. This reduces number wired-OR connections. Another solution small resistor series with output before capacitive load limit excessive ringing oscillations. Figure shows graph Optimal Isolation
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Table 7-Bit Serial Control Word Assignments (Mode Complete Matrix Mode Programming)
(MSB) (LSB) NAME Output Enable Gain Input Address Input Address Input Address Input Address Input Address input channel select address FUNCTION Enable output, disable, enable. Gain Select output buffer, gain +1V/V, gain +2V/V. input channel select address.
COMPUTER CONTROL CAMERAS SYNC0 OUT0 MONITOR SYNC1 IN31 OUT1 MONITOR SYNC0 OSDFILL0 OSDKEY0 SYNC1 OSDFILL1 OSDKEY1 OSDFILL15 OSDKEY15 MEMORY OUT15 MONITOR MAX4358 SYNC15
higher frequencies, offsetting rolloff from parasitic capacitance. Another solution smallvalue inductor output.
On-Screen Display Insertion
MAX4358 facilitates insertion on-screen graphics characters using built-in fast multiplexer associated with each outputs (Functional Diagram). This switches 40ns, much less than width single pixel. Access this fast through dedicated OSDFILL analog inputs dedicated OSDKEY input controls. timing externally controlled applied OSDKEY inputs (Figure Pulling OSDKEYi switches signal OSDFILLi input OUTi output. When OSDKEY signal logic high, signal switched output. This switching action repeated pixel-by-pixel basis each scan line. this synchronized video signal, including arbitrary graphics, inserted screen (Figure This technique inserting display information improvement over traditionally been done. Other techniques require external fast buffer each output.
SYNC15
Figure Improved Implementation On-Screen Display
Resistor Capacitive Load. lowpass filter created from series resistor parasitic capacitance ground. single affect performance video frequencies, very large system there many R-Cs cascaded series. cumulative effect slight rolling high frequencies causing "softening" picture. There solutions achieve higher performance. design board traces associated with outputs such that they exhibit some inductance. routing traces repeating configuration, traces that nearest each other will exhibit mutual inductance increasing total inductance. This series inductance causes amplitude response increase peak
Crosstalk Board Routing Issues
Improper signal routing causes performance problems. MAX4358 typical crosstalk rejection -62dB 6MHz. board layout degrades crosstalk rejection 20dB more. achieve best crosstalk performance: Place ground isolation between long critical signal board trace runs. These traces shield potential interfering signals. Crosstalk degraded from parallel traces well directly above below adjoining board layers.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
CHIP ADDRESS CHIP ADDRESS CHIP ADDRESS
HOST CONTROLLER
DOUT
DOUT
DOUT
NEXT DEVICE
MAX4358 SCLK MODE UPDATE
MAX4358 SCLK MODE UPDATE
MAX4358 SCLK MODE UPDATE
VIRTUAL SERIAL (MODE INDIVIDUAL OUTPUT ADDRESS MODE)
Figure Matrix Mode Programming
2.Maintain controlled-impedance traces. Design many board traces possible transmission lines. This lowers impedance traces reducing potential source crosstalk. More power will dissipated output buffer driving lower impedance. 3.Minimize ground current interaction using good ground plane strategy. addition crosstalk, another issue concern isolation. Isolation rejection undesirable feedthrough from input-to-output with output disabled. MAX4358 achieves -110dB isolation 6MHz selecting pinout configuration such that inputs outputs opposite sides package. Coupling through power supply function quality location supply bypassing. appropriate low-impedance components locate them close possible Avoid routing inputs near outputs.
Power Large Systems
MAX4358 been designed operate with split
supplies down single supply +5V. Operating minimum supply voltages reduces power dissipation much 50%. ±5V, MAX4358 consumes 195mW (0.38mW/point).
Driving PC-Board Interconnect Cable +1V/V +2V/V)
MAX4358 output buffers programmed either +1V/V +2V/V. +1V/V configuration typically used when driving short lengths (less than 3cm), high impedance, "local" board traces. drive cable transmission line trace, program gain output buffer +2V/V place resistor series with output. series termination resistor load impedance voltage divider that divides video signal half. gain +2V/V transmit standard video signal down cable. series resistor called backmatch, reverse termination, series termination. This resistor reduces reflections provides isolation, increasing output capacitive driving capability.
Power-Supply Bypassing
MAX4358 operates from single dual supplies. single-supply operation, connect pins ground bypass power-supply pins with 0.1µF capacitor ground. dual-supply systems, bypass supply pins ground with 0.1µF capacitors.
Matrix Programming
MAX4358's unique digital interface simplifies programming multiple MAX4358 devices array. Multiple devices connected with DOUT first
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
OUT0 OUT15 IN31 OUT1 1VP-P
2VP-P 220µF MONITOR
MAX4358
MAX4450 MAX4383
AGND
Figure Typical Single Supply Application
device connecting second device, (Figure 11). distinct programming modes, Individual Output Address Mode (MODE Complete Matrix Mode (MODE selected toggling single MODE control high low. Both modes operate with same physical board layout. This allows initial programming daisychaining sending long data word while still being able immediately address update individual locations matrix.
input connected that output. this method, matrix programmed output time. Complete Matrix Mode (Mode
Complete Matrix Mode, devices connected
Individual Output Address Mode (Mode
Individual Output Address Mode, devices connected serial-bus configuration, with data routing gate (Figure connecting DOUT, making each device virtual node serial bus. single 16-bit control word sent devices simultaneously. Only device with corresponding chip address responds programming word updates output. this mode chip address hardware strapping A3-A0. host communicates with device sending 16-bit word consisting don't care bit, 4-chip address bits, bits data make word exactly bytes length. data bits broken down into bits select output programmed, output enable, gain bits select
daisy-chain fashion where bits sent program entire matrix, where number MAX4358 devices connected series. data word structured such that first last device chain last data first device chain. total length data word equal number crosspoint devices programmed series times bits crosspoint device. This programming method most often used start-up initially configure switching matrix.
Operating Single-Supply with +1V/V +2V/V
MAX4358 guarantees operation with single supply gain +1V/V standard video-input signals (1Vp-p). implement complete video matrix switching system capable gain +2V/V while operating with single supply, combine MAX4358 crosspoint switch with Maxim's low-cost, high-performance video amplifiers optimized single supply operation (Figure 11). MAX4450 single MAX4451 dual amps unity-gain-stable devices that combine high-speed performance with Rail-to-
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Rail® outputs. common-mode input voltage range extends beyond negative power-supply rail (ground single-supply applications). MAX4450 available ultra-small 5-pin SC70 package, while MAX4451 available space-saving 8-pin SOT23 package. MAX4383 quad available 14-pin TSSOP package. MAX4380/MAX4381/ MAX4382 MAX4384 offer individual output-highimpedance disable making these amplifiers suitable wired-OR connections.
Chip Information
TRANSISTOR COUNT: 44,890 PROCESS: BiCMOS
Rail-to-Rail registered trademark Nippon Motorola, Inc.
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers MAX4358
Configuration
OSDFILL10 OSDFILL11 OSDFILL12 OSDFILL13 OSDFILL14 OSDFILL0 OSDFILL1 OSDFILL2 OSDFILL3 OSDFILL4 OSDFILL5 OSDFILL6 OSDFILL7 OSDFILL8 OSDFILL9
VIEW
AGND AGND AGND AGND AGND AGND AGND AGND AGND
OSDFILL15
AGND AGND AGND OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 OUT9 OUT10 OUT11 OUT12 OUT13 OUT14 OUT15 AGND AGND
AGND IN10 AGND IN11 AGND IN12 AGND IN13
AGND IN14 AGND IN15 AGND IN16 AGND IN17 AGND IN18 AGND IN19 AGND IN20 AGND IN21 AGND IN22 AGND IN23 AGND IN24 AGND IN25 AGND IN26
MAX4358
OSDKEY0
IN27
IN28
IN29
IN30
IN31
RESET
DGND
SCLK
MODE
UPDATE
DOUT
AOUT
OSDKEY9
OSDKEY8
OSDKEY7
OSDKEY6
OSDKEY5
OSDKEY4
OSDKEY3
OSDKEY2
OSDKEY15
OSDKEY14
OSDKEY13
OSDKEY12
OSDKEY11
TQFP
OSDKEY10
OSDKEY1
Nonblocking Video Crosspoint Switch with On-Screen Display Insertion Buffers
Package Information
TQFP20x20x1.0mm.EPS
MAX4358
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2001 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion B

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