MAX9511CEG-MAX9511CEG+ Fast Delivery |IC PHOENIX CO.,LIMITED

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MAX9511CEG-MAX9511CEG+
RGBHV Driver with EMI Suppression
General Description
The MAX9511 provides a complete VGA interface
between a graphics controller and/or docking station.
The MAX9511 has output drivers with variable electro-
magnetic interference (EMI) suppression for graphics
video and sync (RGBHV) signals and includes external
load-detection circuitry.
The MAX9511 suppresses EMI emissions by limiting
the slew rate (SR) rather than limiting bandwidth with
fixed L-C filters. The SR controls the large-signal band-
width without affecting the small-signal bandwidth,
resulting in sharper video images, while reducing EMI.
The SR of the MAX9511 provides tighter control than
traditional passive L-C components, and allows the SR
to track the resolution by varying an external resistor
(RRX) rather than being fixed to a sub-optimal value.
The load-detection circuitry of the MAX9511 automatically
detects and transmits a change in load status to the input
stages when an external load (monitor, docking station, or
projector) is connected. The MAX9511 is compatible with
the load-detection circuitry on the digital-to-analog (DAC)
outputs of most video graphics controllers. The output
drivers provide 6dB of gain to compensate for the 75Ω
back-termination resistors, which reduce transmission line
reflections.
The RGBHV channels can be placed into shutdown to
reduce power when no external load is connected.
The MAX9511 operates from 3V and 5V supplies. The
DDC circuitry performs bidirectional level translation
from 3V to 5V logic levels. The MAX9511 is offered in a
24-pin QSOP package and is specified over the com-
mercial 0°C to +70°C temperature range.
Applications
Notebook PCs (Laptops)
Docking Stations
Graphics Cards for Notebooks and Personal
Computers
Personal Computer Motherboards with On-Board
Video Graphics Controllers
Workstations
FeaturesRGB Drivers with Adjustable Slew Rate for EMI
ControlH Sync and V Sync Drivers with Level TranslationBidirectional Level Translators for DDC SupportSimultaneously Drives External Monitor/Projector
and Docking Station without Analog RGB
Switches—No Stub ReflectionsEliminates Up to 34 External ComponentsSmall 24-Pin QSOP Package
MAX9511
RGBHV Driver with EMI Suppression
19-3669; Rev 3; 8/07
Ordering Information
PARTTEMP RANGEPIN-
PACKAGE
PKG
CODE
MAX9511CEG0°C to +70°C24 QSOPE24-2
MAX9511CEG+0°C to +70°C24 QSOPE24-2
RED_OUTRED_IN
MAX9511
EMI SUPPRESSION
LOAD-DETECT CIRCUITRY
GREEN_OUTGREEN_IN
BLUE_OUTBLUE_IN
H_SYNC_OUTH_SYNC_IN
V_SYNC_OUTV_SYNC_IN
DDC_DATA_OUTDDC_DATA_IN
DDC_CLK_OUTDDC_CLK_IN
Simplified Block Diagram
+Denotes a lead-free package.
Pin Configuration appears at end of data sheet.
MAX9511
RGBHV Driver with EMI Suppression
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.
VCCto AGND............................................................-0.3V to +6V
VDD1, VDD2to DGND...............................................-0.3V to +6V
DGND to AGND.....................................................-0.1V to +0.1V
RED_IN, GREEN_IN, BLUE_IN to AGND.....-0.3V to (VCC+ 0.3V)
RED_OUT, GREEN_OUT, BLUE_OUT
to AGND................................................-0.3V to (VCC+ 0.3V)
RX to AGND................................................-0.3V to (VCC+ 0.3V)
H_SYNC_IN, V_SYNC_IN, SHDN
to DGND..............................................-0.3V to (VDD2+ 0.3V)
H_SYNC_OUT, V_SYNC_OUT
to DGND..............................................-0.3V to (VDD1+ 0.3V)
DDC_DATA_IN
to DGND..............(DDC_DATA_OUT - 0.3V) to (VDD2+ 0.3V)
DDC_DATA_OUT
to DGND.................(DDC_DATA_IN - 0.1V) to (VDD1+ 0.3V)
DDC_CLK_IN
to DGND................(DDC_CLK_OUT - 0.3V) to (VDD2+ 0.3V)
DDC_CLK_OUT
to DGND....................(DDC_CLK_IN - 0.1V) to (VDD1+ 0.3V)
DDC_DATA_OUT to DDC_DATA_IN........................-0.1V to +6V
DDC_CLK_OUT to DDC_CLK_IN.............................-0.1V to +6V
Continuous Power Dissipation (TA= +70°C)
24-Pin QSOP (derate 9.5mW/°C above +70°C)..........762mW
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(VCC= 5V, VDD1= 5V, VDD2= SHDN= 3V, RL= 150Ωto AGND, DGND = AGND, RRX= 7kΩto AGND, TA= 0°C to +70°C. Typical
values are at TA= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXU N IT S
VCCInferred from PSRR4.55.5
VDD1Inferred from logic test4.55.5Supply Voltage Range
VDD2Inferred from logic test2.33.6
RRX = 7kΩ3850
SHDN = VDD2
RRX = 36kΩ2535ICC
SHDN = DGND0.150.25
SHDN = VDD236IDD1SHDN = DGND0.0270.08
SHDN = VDD2220500
Quiescent Supply Current
IDD2SHDN = DGND2640µA
VIDEO
Input Voltage RangeVINInferred from voltage gain00.70.9V
Output Black Level VoltageVOUT,BLACKRED_IN = GREEN_IN = BLUE_IN = AGND565160mV
Voltage GainAV0 ≤ VIN ≤ 0.9V, RL = 75Ω+1.9+2+2.1V/V
Gain MatchingΔAV0 ≤ VIN ≤ 0.9V, RL = 75Ω12%
0 ≤ VIN ≤ 1V, with load10100kΩInput ResistanceRIN0.4V ≤ VIN ≤ 0.7V, no load-85-74-62Ω
Output ImpedanceZOUTf = 100kHz0.64Ω
Output Short-Circuit Current
(To AGND)IOUT40mA
Load-Detection VoltageVX_IN(Note 1)0.2V
Output Load DetectionRL_OUTVIN = 0.4V180Ω
Power-Supply RejectionPSRR4.5V ≤ VCC ≤ 5.5V, V IN = 0.5V4057dB
Large-Signal BandwidthVOUT = 1.6VP-P, RRX = 7kΩ370MHz
MAX9511
RGBHV Driver with EMI Suppression
ELECTRICAL CHARACTERISTICS (continued)
(VCC= 5V, VDD1= 5V, VDD2= SHDN= 3V, RL= 150Ωto AGND, DGND = AGND, RRX= 7kΩto AGND, TA= 0°C to +70°C. Typical
values are at TA= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXU N IT S
RRX = 36kΩ, TA = +25°C250330450Slew Rate (Notes 2, 3)SRRRX = 7kΩ, TA = +25°C90011001300V/µs
Settling TimetS(Notes 4, 5)0ns
Undershoot/OvershoottOS, tUS±1%
Linearity ErrorLEV I N = 700m V P - P (Notes 6, 7)0.036%
Peak Signal-to-Noise RatioSNRf = 100kH z to 100M H z, V IN = 700m V P - P 50dB
Channel-to-Channel SkewΔtR to G to B (Note 3)5001100ps
Power-Supply Rejection
RatioPSRRf = 100kHz49dB
CrosstalkAll hostile, f = 10MHz55dB
Input Termination Switch
DelayΔtSWD70ns
LOGIC
Input Low LevelVILH_SYNC_IN, V_SYNC_IN and SHDN0.3 x
VDD2V
Input High LevelVIHH_SYNC_IN, V_SYNC_IN and SHDN0.7 x
VDD2V
H_SYNC_OUT, VH_SYNC_IN = DGNDIOL = 4m AV_SYNC_OUT, VV_SYNC_IN = DGND0.55
DDC_DATA_IN, VDDC_DATA_OUT =
DGNDIOL = 50µA
DDC_CLK_IN, VDDC_CLK_OUT = DGND
0.4D C _D ATA_OU T, VDDC_DATA_IN =
DGND
Output Low LevelVOL
IOL = 3m A
DDC_CLK_OUT, VDDC_CLK_IN = DGND
H_SYNC_OUT, VH_SYNC_IN = VDD2IOH = 4m AV_SYNC_OUT, VV_SYNC_IN = VDD2
VDD1
- 1.5D C _D ATA_IN , V D D C _D AT A _OU T = VDD1IOH =
50µADDC_CLK_IN, VDDC_CLK_OUT = VDD1
VDD2
- 0.4
DDC_DATA_OUT, VDDC_DATA_IN =
VDD2
Output High LevelVOH
IOH =
50µADDC_CLK_OUT, VDDC_CLK_IN = VDD2
VDD1
- 1.5
SYNC Output ResistanceRSO355585Ω
SHDN Pulldown ResistanceRSD225330500kΩ
SYNC Input ResistanceRSI304770kΩ
RPODDC_DATA_OUT, DDC_CLK_OUT234DDC Pullup ResistanceRPIDDC_DATA_IN, DDC_CLK_IN3.04.76.5kΩ
MAX9511
RGBHV Driver with EMI Suppression
Note 1:This is the voltage at which the input termination switches; VIN> VX_IN= switch open, VIN < VX_IN= switch closed.
Note 2:Measured between the 10% to 90% points on rising or falling edge.
Note 3:Not production tested. Guaranteed by design.
Note 4:Measured from the END of overshoot/undershoot to ±5% of final value.
Note 5:VIN= 700mV with a rise time >1ns.
Note 6:Linearity error is the maximum difference between the actual and measured output of a video ramp. Done in accordance
with VESA Test Procedure, Version 1, 6/11/2001.
Note 7:Linearity error measured as percentage of full scale.
Note 8:Propagation delay is the time difference between the VDD2/ 2 input crossing and the 1.4V output crossing.
ELECTRICAL CHARACTERISTICS (continued)
(VCC= 5V, VDD1= 5V, VDD2= SHDN= 3V, RL= 150Ωto AGND, DGND = AGND, RRX= 7kΩto AGND, TA= 0°C to +70°C. Typical
values are at TA= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXU N IT S
CSYNC = 47pF, TA = +25°C7All SYNC outputs
(Notes 2, 3)CSYNC = 470pF, TA = +25°C5070100Rise/Fall TimetR/tF
DDC only, CL = 47pF400
Propagation DelaytPLH, tPHLSYNC, CSYNC = 47pF, TA = +25°C (Notes 3, 8)1222ns
Enable TimeVIN = 0.7VP-P, SHDN from DGND to VDD2, outputs
settle to ±1% of final value1200ns
Disable TimeVIN = 0.7VP-P, SHDN from VDD2 to DGND, outputs
settle to ±1% of final value400ns
Typical Operating Characteristics
(VCC= 5V, VDD1= 5V, VDD2= 3V, RL= 150Ωto AGND, RRX= 7kΩto AGND, TA= +25°C, unless otherwise noted.)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY
MAX9511 toc01
FREQUENCY (MHz)
GAIN (dB)
VOUT = 1.6VP-P
TA = TMIN to TMAX
LARGE-SIGNAL GAIN FLATNESS
vs. FREQUENCY
MAX9511 toc02
FREQUENCY (MHz)
GAIN (dB)
LARGE-SIGNAL BANDWIDTH
vs. FREQUENCY vs. RRX
MAX9511 toc03
FREQUENCY (MHz)
GAIN (dB)
RRX = 5kΩ
RRX = 35kΩ
RRX = 20kΩ
RRX = 50kΩ
SMALL-SIGNAL BANDWIDTH
vs. FREQUENCY vs. RRX
MAX9511 toc04
FREQUENCY (MHz)
GAIN (dB)
0.110,000
RRX = 5kΩ
RRX = 35kΩ
RRX = 20kΩ
RRX = 50kΩ
LARGE-SIGNAL GAIN FLATNESS
vs. FREQUENCY vs. RRX
MAX9511 toc05
FREQUENCY (MHz)
GAIN (dB)
RRX = 5kΩ
RRX = 35kΩ
RRX = 50kΩ
RRX = 20kΩ
ALL-HOSTILE CROSSTALK
vs. FREQUENCY
MAX9511 toc06
FREQUENCY (MHz)
CROSSTALK (dB)
TA = +85°C
TA = 0°C, +25°C
OFF-ISOLATION vs. FREQUENCY
MAX9511 toc07
FREQUENCY (MHz)
OFF-ISOLATION (dB)
TRANSIENT RESPONSE
MAX9511 toc08
VOUT
1V/div
VIN
500mV/div
2ns/div
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9511 toc09
FREQUENCY (MHz)
PSRR (dB)
TA = +70°C
TA = +25°CTA = 0°C
MAX9511
RGBHV Driver with EMI Suppression
Typical Operating Characteristics (continued)
(VCC= 5V, VDD1= 5V, VDD2= 3V, RL= 150Ωto AGND, RRX= 7kΩto AGND, TA= +25°C, unless otherwise noted.)
MAX9511
RGBHV Driver with EMI Suppression
Typical Operating Characteristics (continued)
(VCC= 5V, VDD1= 5V, VDD2= 3V, RL= 150Ωto AGND, RRX= 7kΩto AGND, TA= +25°C, unless otherwise noted.)
SYNC PULSE RESPONSE
MAX9511 toc10
50µs/div
INPUT
1V/div
OUTPUT
1V/divCL = 510pF
CL = 330pF
CL = 220pF
CL = 150pF
CL = 47pF
RL = 2.2kΩ
DDC_IN TO DDC_OUT
PULSE RESPONSE
MAX9511 toc11
500ns/div
INPUT
1V/div
OUTPUT
2V/div
RL = 100kΩ
CL = 47pF
tR = 250ns
tF = 30ns
DDC_OUT TO DDC_IN
PULSE RESPONSE
MAX9511 toc12
500ns/div
INPUT
2V/div
OUTPUT
1V/div
RL = 100kΩ
CL = 47pF
tR = 280ns
tF = 4ns
POWER-SUPPLY CURRENT
vs. TEMPERATURE (ICC)
MAX9511 toc13
TEMPERATURE (°C)
POWER-SUPPLY CURRENT (mA)25
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX9511 toc14
FREQUENCY (Hz)
OUTPUT IMPEDANCE (
100M10M1M100k
10k1G
MAX9511
RGBHV Driver with EMI Suppression
Typical Operating Characteristics (continued)
(VCC= 5V, VDD1= 5V, VDD2= 3V, RL= 150Ωto AGND, RRX= 7kΩto AGND, TA= +25°C, unless otherwise noted.)
POWER-SUPPLY CURRENT
vs. TEMPERATURE (IDD1, IDD2)
MAX9511 toc15
TEMPERATURE (°C)
POWER-SUPPLY CURRENT (mA)25
SHDN = VDD2
IDD1
IDD2
OUTPUT OFFSET
vs. TEMPERATURE (VOUT,BLACK)
MAX9511 toc16
TEMPERATURE (°C)
OFFSET VOLTAGE (mV)25
MEAN - 3 x SIGMA
MEAN
MEAN + 3 x SIGMA
INPUT RESISTANCE
vs. TEMPERATURE
MAX9511 toc17
TEMPERATURE (°C)
RESISTANCE (25
0.4V ≤ VIN ≤ 0.7V
NO LOAD
PINNAMEFUNCTION
1VCCAnalog Power SupplyGREEN_INGreen Video Input
3, 20, 22, 24AGNDAnalog GroundRED_INRed Video InputBLUE_INBlue Video InputRXSlew-Rate Control. Connect an external resistor from RX to AGND.SHDNActi ve- Low S hutd ow n. For nor m al op er ati on connect to V D D 2 . S HD N i s i nter nal l y p ul l ed to D G N D .DDC_DATA_INDDC Data Input. Defaults to VDD2 through an internal pullup resistor.DDC_CLK_INDDC Clock Input. Defaults to VDD2 through an internal pullup resistor.H_SYNC_INHorizontal SYNC Input. Defaults to AGND through an internal pulldown resistor.V_SYNC_INVertical SYNC Input. Defaults to AGND through an internal pulldown resistor.VDD2SYNC/DDC 3V SupplyVDD1SYNC/DDC 5V Supply. Supplies 5V to SYNC and DDC output circuitry.V_SYNC_OUTVertical Sync OutputH_SYNC_OUTHorizontal Sync OutputDDC_CLK_OUTDDC Clock Output. Defaults to VDD1 through an internal pullup resistor.DDC_DATA_OUTDDC Data Output. Defaults to VDD1 through an internal pullup resistor.DGNDDigital GroundBLUE_OUTBlue Video OutputRED_OUTRed Video OutputGREEN_OUTGreen Video Output
Pin Description
MAX9511
RGBHV Driver with EMI Suppression
Detailed Description
The MAX9511 solves several difficult problems in inter-
facing a video graphics controller to a VGA port and/or
the docking station connector. First, there is a trade-off
between video quality and EMI. The usual method for
reducing EMI is to insert a fixed-frequency LC π-filter
between the video DAC output and the connector. Given
the large component variation of the capacitors and
inductors, the frequency response is sharply reduced to
meet EMI requirements. As a result, video quality suffers
making sharp transitions in the video soft. The MAX9511
video drivers have a variable slew rate, which limits elec-
tromagnetic emissions and can be adjusted by an exter-
nal resistor. As a result, the slew rate of the MAX9511 can
be varied to reduce electromagnetic emissions at a given
resolution, maximizing video quality. Since the slew rate
is variable and set by a resistor instead of fixed by
capacitors and inductors, video performance and elec-
tromagnetic emissions are consistent during production.
The MAX9511 also has horizontal and vertical sync out-
put drivers, bidirectional level translators for DDC sup-
port, and external load-detection circuits that correctly
transfer information about the external load to the video
graphics controller.
Load Detection
Most notebook computers implement a power-saving
load-detection circuit that disables the external monitor
output when no monitor is plugged into the rear panel
VGA connector as shown in Figure 1. Upon startup or on
command, the video controller generates a sequence of
detection pulses out of the current DAC shown, that
results in an output voltage of above 315mV when an
external monitor (RL) is connected, and above 630mV
when disconnected. If the monitor is disconnected at the
time of the pulse, the comparator inside the notebook
trips and disables the video. When the monitor is
plugged in, the resulting pulse will not trip the comparator
and the video is enabled.
If the lowpass filter is simply replaced with an amplifier,
the monitor termination RLis isolated from the video
controller and the conventional load-detection scheme
does not work.
For this reason, the MAX9511 includes the load-detection
circuit. When RLis connected (i.e., the monitor is plugged
in) to the output of the MAX9511, the internal load-detec-
tion circuit disconnects the synthesized -75Ωresistor
from the input. The resulting 37.5Ωresistance at the DAC
output indicates to the DAC’s internal load-detection cir-
cuit that the monitor is plugged in. Removing RL(i.e., dis-
connecting the monitor) causes the MAX9511’s
load-detection circuit to connect the synthesized -75Ω
VDD1
VDD2
RPI
RSI
RPIRBRPO
DDC_DATA_IN
DDC_CLK_IN
H_SYNC_IN
V_SYNC_IN
AGND
V_SYNC_OUT
H_SYNC_OUT
DDC_CLK_OUT
DDC_DATA_OUT
BLUE_OUT
GREEN_OUT
RED_OUT
SHDN
DGND
BLUE_IN
RED_IN
GREEN_IN
RISENSE
VCC
MAX9511
-75Ω
RISENSEVY
-75Ω
RISENSEVY
-75Ω
RPO
RSO
RSI
RSO
Block Diagram

Partno	Mfg	Dc	Qty	Available	Descript
MAX9511CEG	MAXIM	N/a	2500	avai	RGBHV Driver with EMI Suppression
MAX9511CEG	MAX	N/a	25	avai	RGBHV Driver with EMI Suppression
MAX9511CEG+ \|MAX9511CEG	MAXIM	N/a	2	avai	RGBHV Driver with EMI Suppression