MAX4885ETJ+-MAX4885ETJ+T Fast Delivery |IC PHOENIX CO.,LIMITED

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MAX4885ETJ+-MAX4885ETJ+T
Ultra Low-Capacitance VGA Switch with ±15kV ESD
General Description
The MAX4885E integrates high-bandwidth analog
switches and level-translating buffers to implement a
complete 1:2 multiplexer for VGA signals. The device
provides switching for RGB, display data channel (DDC).
Horizontal and vertical synchronization (HSYNC/VSYNC)
inputs feature level-shifting buffers to support low-volt-
age CMOS or standard TTL-compatible graphics con-
trollers, meeting the VESA requirement of ±8mA. DDC,
consisting of SDA_ and SCL_, is a bidirectional active-
level translating switch that reduces capacitive load. The
MAX4885E features high ESD protection to ±15kV
Human Body Model (HBM) on all twelve externally rout-
ed terminals. See the Pin Descriptionsection. All other
pins are protected to ±10kV Human Body Model (HBM).
The MAX4885E is specified over the extended -40°C to
+85°C temperature range, and is available in the
24-pin, 4mm x 4mm TQFN package.
Applications
Notebook Computers/Docking Stations
Digital Projectors
Computer Monitors
Servers/Storage
KVM Switches
Features±15kV HBM ESD Protection on Externally Routed
Terminals1GHz BandwidthLow 5Ω(typ) On-Resistance (R, G, B Signals)Low 6pF (typ) On-Capacitance (R, G, B Signals)Low R, G, B Skew -50ps (typ)Near Zero Power Consumption (< 2µA)Ultra-Small, 24-Pin (4mm x 4mm) TQFN Package
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
19-4269; Rev 0; 10/08
EVALUATION KIT
AVAILABLE
TQFN-EP
MAX4885E34561716151413
SCL2
SDA2
SCL1
SDA1
SEL
SDA0SCL0G0B0H0R2G2B1B2
GND
VCC
TOP VIEW
*EXPOSED PAD. CONNECTED TO GROUND OR LEAVE UNCONNECTED.
*EP
Pin Configuration
Ordering Information
GRAPHICS
CONTROLLER
DOCKING
STATION
VGA
PORTVCC
GND
+3.3VEN
R0, B0, G0
H0, V0
SDA0, SCL0
R2, G2, B2
SDA2, SCL2
R1, G1, B1
SDA1, SCL1
H1, V1SELDOCKING
STATION
+5.0V+3.3V
0.1µF0.1µF
MAX4885E
Typical Operating Circuit
PARTTEMP RANGEPIN-PACKAGE
MAX4885EETG+-40°C to +85°C24 TQFN-EP*
*EP = Exposed pad.
+Denotes lead-free package/RoHS-compliant package.
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
ABSOLUTE MAXIMUM RATINGS
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.
(All voltages referenced to GND.)
VCC, VL.....................................................................-0.3V to +6V
R_, G_, B_, SDA1, SCL1, SDA2, SCL2,
H1, V1, (Note 1)........................................-0.3V to VCC+ 0.3V
H0, V0, SDA0, SCL0, EN, SEL.........................-0.3V to VL+ 0.3V
Continuous Current through RGB Switches.....................±30mA
Continuous Current through DDC Switches.....................±30mA
Peak Current through RGB Switches
(pulsed at 1ms, 10% duty cycle)...................................±90mA
Peak Current through DDC Switches (pulsed at 1ms,
10% duty cycle)............................................................±90mA
Continuous Power Dissipation (TA= +70°C)
24-Pin TQFN (derate 27.8mW/°C above +70°C)........2222mW
Junction to Ambient Thermal Resistance (θJA) (Note 2)
24-Pin TQFN..................................................................36°C/W
Junction to Ambient Thermal Resistance (θJC) (Note 2)
24-Pin TQFN....................................................................3°C/W
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(VCC= +5.0V ±10%, VL= +2V to +5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V, VL= +3.3V and= +25°C.) (Note 3)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
EN = VLVCC Quiescent Supply CurrentICCVCC = +5.0VEN = GND1µA
EN = VLVL Quiescent Supply CurrentIVLVL = +3.3VEN = GND1µA
RGB ANALOG SWITCHES
On-ResistanceRONVCC = +5.0V, IIN = -10mA, VIN = +0.7V
(Note 4)6Ω
On-Resistance MatchingΔRON0 ≤ VIN ≤ 0.7V, IIN = -10mA0.5Ω
On-Resistance FlatnessRFLAT(ON)0 ≤ VIN ≤ 0.7V, IIN = -10mA0.5Ω
Off-Leakage CurrentIL(OFF)VCC = +5.5V, VIN = +0.3V or +5.5V,
VEN = 0 or VL-1+1µA
On-Leakage CurrentIL(ON)VCC = +5.5V, VIN = +0.3V or +5.5V,
VEN = VL-1+1µA
HV BUFFER
Input Voltage LowVILHV0.33 xV
Input Voltage HighVIHHV0.66 xV
Input Logic HysteresisVHYST75mV
Input Leakage CurrentIINHVVCC = +5.5V, VL = +5.5V, VIN = 0 or VL-1+1µA
High-Output Drive CurrentIOHHVVOHHV ≥ 3.0V8.0mA
Low-Output Drive CurrentIOLHVVOLHV ≤ 0.6V8.0mA
Note 1:Signals exceeding VCCor GND are clamped by internal diodes. Limit forward-diode current to maximum current rating.
Note 2:Package thermal resistances were obtained using the method described in JEDEC specifications. For detailed information
on package thermal considerations, refer to /thermal-tutorial.
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
SDA_, SCL_
Supply VoltageVL2.05.5V
On-ResistanceRONVIN = +0.4V, IIN = ±2mA, VL = +2.0V10Ω
On-CapacitanceCONf = 100kHz15pF
High-Impedance Input Leakage
CurrentIINHIZ
EN = GND, VCC = +5.5V, VL = +3.6V,
SCL0, SDA0, SCL1, SCL2, SDA1, SDA2
= GND or VVL (Note 5)+1µA
Off-Input Leakage CurrentIINOFFEN = VL, VL = +3.6V, VIN = VL - 0.2V-1+1µA
CONTROL LOGIC (SEL, EN)
Input Voltage LowVILLOG0.33 xV
Input Voltage HighVIHLOG0.66 xV
Input Logic HysteresisVHYST75mV
Input Leakage CurrentIINLEKVCC = +5.5V, VL = +3.6V, VIN = 0 or VL-1+1µA
ESD PROTECTION
Human Body Model; R1, G1, B1, R2, G2,
B2, SDA1, SCL1, SDA2, SCL2, H1, V1±15ESD Protection
Human Body Model; all other pins±10
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +5.0V ±10%, VL= +2V to +5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V, VL= +3.3V and= +25°C.) (Note 3)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
BandwidthfMAXRS = RL = 50Ω1GHz
Insertion LossILOSf = 1MHz, RS = RL = 50Ω, Figure 10.6dB
CrosstalkVCTf = 50MHz, RS = RL = 50Ω, Figure 1-40dB
Off-CapacitanceCOFFf = 250MHz4.5pF
On-CapacitanceCONf = 250MHz6.4pF
AC ELECTRICAL CHARACTERISTICS
(VCC= +5.0V ±10%, VL= +2V to +5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V, VL= +3.3V and= +25°C.) (Note 3)
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
RGB ANALOG SWITCHES
Output Skew Between PortstSKEWSkew between any two ports: R_, G_, B_,
Figure 250ps
HV BUFFER
Propagation DelaytPDRL = 1kΩ, CL = 10pF, Figure 215ns
TIMING CHARACTERISTICS
(VCC= +5.0V ±10%, VL= +2V to +5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V, VL= +3.3V and= +25°C.) (Note 3)
Note 3:All devices are 100% production tested at TA= +25°C. Specifications over the full temperature range are guaranteed by design.
Note 4:On-resistance guarantees the low-static logic level.
Note 5:SDA_, SCL_ off-input leakage current guarantees the high-static logic level.
RON vs. VR0*
(RGB SWITCHES)
MAX4885E toc01
VR0 (V)
TA = +85°C
TA = +25°C
TA = -40°C
*R0, G0, B0 ARE INTERCHANGEABLE
RON vs. VSDA0*
(DDC SWITCHES)
MAX4885E toc02
VSDA0 (V)
TA = +85°C
TA = +25°C
TA = -40°C
TA = +85°C
VL = +3.3VVL = +5.0V
TA = +25°C
TA = -40°C
SDA0, SCL0 ARE
INTERCHANGEABLE
HV BUFFER OUTPUT VOLTAGE
HIGH vs. TEMPERATURE
MAX4885E toc03
TEMPERATURE (°C)
OUTPUT VOLTAGE HIGH (V)
IOUT = 8mA
Typical Operating Characteristics
(VCC= +5.0V, VL= +3.3V and TA= +25°C, unless otherwise noted.)
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
HV BUFFER OUTPUT VOLTAGE
LOW vs. TEMPERATURE
MAX4885E toc04
TEMPERATURE (°C)
OUTPUT VOLTAGE LOW (V)
IOUT = 8mA
SUPPLY CURRENT vs. TEMPERATURE
MAX4885E toc05
TEMPERATURE (°C)
SUPPLY CURRENT (
ICCIVL
Typical Operating Characteristics (continued)
(VCC= +5.0V, VL= +3.3V and TA= +25°C, unless otherwise noted.)
ON-RESPONSE vs. FREQUENCY
MAX4885E toc06
FREQUENCY (MHz)
ON-RESPONSE (dB)
CROSSTALK vs. FREQUENCY
MAX4885E toc07
FREQUENCY (MHz)
CROSSTALK (dB)
-901000100
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
Timing Circuits/Timing Diagrams
INPUT
OUTPUT
VOHtPHLtPLH
tSKEW = |tPLH - tPHL|
tPD = MAX (tPLH, tPHL)
50%
50%
0.9V
50%50%
RL = 1kΩ
CL = 10pF
Figure 2. Propagation Delay and Skew Waveforms
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
INSERTION-LOSS IS MEASURED BETWEEN R0 AND R1 OR R2 ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
+5V
VOUT
VCCSELVIN
MAX4885E CROSSTALK = 20log VOUT
VIN
NETWORK
ANALYZER
50Ω
50Ω50Ω
50Ω
MEASREF
10nF
0 OR VCC
50ΩGND
R0, G0, B0
R2, G2, B2R1, G1, B1
INSERTION-LOSS = 20log VOUT
VIN
Figure 1. Insertion-Loss and Crosstalk

Partno	Mfg	Dc	Qty	Available	Descript
MAX4885ETJ+ \|MAX4885ETJ	MAXIM	N/a	14	avai	Ultra Low-Capacitance VGA Switch with ±15kV ESD
MAX4885ETJ+T \|MAX4885ETJT	MAX	N/a	2500	avai	Ultra Low-Capacitance VGA Switch with ±15kV ESD