19-0602; Rev 2; 1/07
KIT
ATION
EVALU
BLE
AVAILA
Graphics Video Sync Adder/Extractor
General Description
Features
o
3-Wire RGB to 5-Wire RGBHV Interface
o
Supports VGA-to-UXGA Resolution
o
Low Offset Voltage (±1mV)
o
180MHz Large-Signal Bandwidth
MAX9539/MAX9540
The MAX9539/MAX9540 chipset provides a 3-wire
(RGB) interface for 5-wire (RGBHV) video by adding
and extracting the H, V, and composite sync from the
graphics video signals. This chipset eliminates the
problem of sync-to-video timing (skew errors) in a 5-
wire interface, while reducing the number of channels
required to transport video signals.
The MAX9539 mixes the H and V sync signals and
adds them to create a 3-wire interface from a 5-wire
(RGBHV) input. The MAX9540 recovers the H and V
sync signals to create a 5-wire (RGBHV) interface from
the 3-wire input. The MAX9540 also provides a com-
posite sync output.
The chipset includes the MAX9539 sync adder and the
MAX9540 sync extractor with 180MHz large-signal
bandwidths to address display resolutions up to 1600 x
1200 at 85Hz for VGA-to-UXGA applications. Both
devices feature a DC restore function, which virtually
eliminates any changes in black level. The chipset uses
a proprietary H and V sync addition/extraction scheme
(true sync) to minimize skew errors.
The MAX9539/MAX9540 are available in 28-pin TSSOP
packages and are specified over the extended -40°C to
+85°C temperature range.
Ordering Information
PART
MAX9539EUI+*
MAX9539EUI
MAX9540EUI+*
MAX9540EUI
PIN-
PACKAGE
28 TSSOP
28 TSSOP
28 TSSOP
28 TSSOP
PKG
CODE
U28-3
U28-3
U28-3
U28-3
DESCRIPTION
Sync Adder
Sync Adder
Sync Extractor
Sync Extractor
Note:
All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes
lead-free package.
*Future
product—contact factory for availability.
Applications
Enterprise Class (Blade) Servers
Laptop PCs
Web Appliances
Keyboard-Video-Mouse (KVM)
Pin Configurations appear at end of data sheet.
Chipset Diagram
H
H
V
R
G
B
V
R
G
B
R
G
B
MAX9539
MAX9540
C
R
G
B
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Graphics Video Sync Adder/Extractor
MAX9539/MAX9540
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ..............................................................-0.3V to +6V
V
EE
to GND...............................................................-6V to +0.3V
IN_R, IN_G, IN_B, REST_R, REST_G,
REST_B….....................................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
OUT_R, OUT_G, OUT_B Short Circuit
to GND (Note 1) .....................................................Continuous
OUT_R, OUT_G, OUT_B Short Circuit to
V
CC
.......................................................................................5s
MAX9539:
HSYNC, VSYNC, SP_H, SP_V ................ -0.3V to (V
CC
+ 0.3V)
MAX9540:
HSYNC, CSYNC, VSYNC Short Circuit to GND .....Continuous
HSYNC, CSYNC, VSYNC Short Circuit to V
CC
.................1min
SP_C, SP_V, SP_H .................................-0.3V to (V
CC
+ 0.3V)
Note 1:
Continuous power dissipation rating must also be observed.
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.
Continuous Power Dissipation (T
A
= +70°C)
28-Pin TSSOP (U28-3) Single-Layer Board
(derate 13mW/°C above +70°C) ................................1039mW
28-Pin TSSOP (U28-3) Multilayer Board
(derate 14.3mW/°C above +70°C) ...............................1143mW
Operating Temperature .......................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
MAX9539 DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, GND = 0V, R
L
= 150Ω to GND, T
A
= -40°C to +85°C, unless otherwise specified. Typical values are at T
A
=
+25°C.) (Notes 2 and 3)
PARAMETER
Supply Voltage Range
Quiescent Supply Current
Input Voltage Range
DC-Restore Input Voltage Range
SYMBOL
V
CC
V
EE
I
CC
I
EE
V
IN
ΔV
IN_RESTORE
DCRR
(ΔV
OS
/
I
B
R
IN
V
SYNC
V
OS
TCV
OS
(ΔV
OS
/
ΔT
A
)
G
ΔG
PSRR
ΔV
OS
/
Δ(V
CC
- V
EE
)
H or V sync is active
ΔV
IN_RESTORE
_ = 0V, T
A
= +25 C
(Note 4)
o
CONDITIONS
Guaranteed by PSRR test
Guaranteed by PSRR test
R
L
=
∞
R
L
=
∞
Inferred from voltage gain test
Inferred from output DC-Restore
Rejection Ratio test
V
IN_RESTORE
= -0.3V to
+0.3V
MIN
4.5
-5.5
TYP
MAX
5.5
-4.5
UNITS
V
mA
V
V
61
55
0
-0.30
90
75
1
+0.30
DC-Restore Rejection Ratio
Input Bias Current
Input Resistance
Output Sync Amplitude
Output Offset Voltage
Temperature Coefficient of
Output Offset Voltage
Voltage Gain
Gain Matching
Gain Linearity
Power-Supply Rejection Ratio
ΔV
IN_RESTORE
)
28
50
±2
400
±30
-2.05
±8
dB
µA
kΩ
V
mV
µV/°C
+2.05
±2
V/V
%
%
dB
-2.65
-2.35
±1
-24
T
A
= -40
o
C to +85
o
C
V
IN
= 0 to +1V
R to G to B
+1.95
+2
±1
0.02
V
CC
, V
EE
=
±4.5V
to
±5.5V
50
70
2
_______________________________________________________________________________________
Graphics Video Sync Adder/Extractor
MAX9539 DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= -5V, GND = 0V, R
L
= 150Ω to GND, T
A
= -40°C to +85°C, unless otherwise specified. Typical values are at T
A
=
+25°C.) (Notes 2 and 3)
PARAMETER
HSYNC, VSYNC INPUTS
High Input Voltage
Low Input Voltage
High Input Current
Low Input Current
SP_H, SP_V INPUTS
High Input Voltage
Low Input Voltage
High Input Current
Low Input Current
REST_R, REST_B, REST_G INPUTS
Hold-Mode Droop Current
I
DROOP
±2
nA
V
IH
V
IL
I
IH
I
IL
V
I
= 5V
V
I
= 0V
0.1
1
2
0.8
20
20
V
V
µA
µA
V
IH
V
IL
I
IH
I
IL
V
I
= 5V
V
I
= 0V
10
2.5
2
0.8
60
V
V
µA
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX9539/MAX9540
MAX9539 AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, GND = 0V, R
L
= 150Ω to GND, T
A
= -40°C to +85°C, unless otherwise specified. Typical values are at T
A
=
+25°C.)
PARAMETER
Large-Signal Bandwidth
Slew Rate
Channel-to-Channel Crosstalk
Settling Time
Input Voltage-Noise Density
Input Current-Noise Density
Sync Timing Delay
Channel-to-Channel Sync Timing
Skew
Sync Edge Jitter
Line Droop
Field Tilt
Sync Frequency Range
f
H
f
V
SYMBOL
LSBW
SR
X
TALK
t
S
e
n
i
n
t
D
Δ(t
D
)
t
JITTER
f = 50kHz
f = 60Hz
H sync
V sync
V
OUT
= 2V
P-P
V
OUT
= 2V
P-P
V
OUT
= 2V
P-P
at 10MHz
V
OUT
= 2V
P-P
to 0.1%
f = 100kHz
f = 100kHz
H sync only (Note 5)
H sync only (Note 5)
CONDITIONS
MIN
TYP
180
900
-60
15
30
12
-20
1
200
0.01
0.04
15 to 150
40 to 100
MAX
UNITS
MHz
V/µs
dB
ns
nV/√Hz
pA/√Hz
ns
ns
ps
P-P
%
%
kHz
Hz
_______________________________________________________________________________________
3
Graphics Video Sync Adder/Extractor
MAX9539/MAX9540
MAX9540 DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, GND = 0V, R
L
= 150Ω to GND, T
A
= -40°C to +85°C, unless otherwise specified. Typical values are at T
A
=
+25°C.) (Notes 2 and 3)
PARAMETER
Supply Voltage Range
Quiescent Supply Current
Input Voltage Range
DC-Restore Input Voltage Range
SYMBOL
V
CC
V
EE
I
CC
I
EE
V
IN
ΔV
IN_RESTORE
DCRR
(ΔV
OS
/
I
B
R
IN
V
BLACK
VOS
TCV
OS
(ΔV
OS
/ΔT
A
)
G
ΔG
PSRR
ΔV
OS
/
Δ(V
CC
- V
EE
)
H or V sync is active: V
IN
< -1V
ΔV
IN_RESTORE
_ = 0V, T
A
= +25 C
(Note 4)
o
CONDITIONS
Guaranteed by PSRR test
Guaranteed by PSRR test
R
L
=
∞
R
L
=
∞
Inferred from voltage gain test
Inferred from DC-Restore Rejection
Ratio test
V
IN_RESTORE
= -0.3V to
+0.3V
MIN
4.5
-5.5
TYP
MAX
5.5
-4.5
UNITS
V
mA
V
V
61
54
0
-0.30
90
75
1
+0.30
DC-Restore Rejection Ratio
Input Bias Current
Input Resistance
Output Black Level
Output Offset Voltage
Temperature Coefficient of
Output Offset Voltage
Voltage Gain
Gain Matching
Gain Linearity
Power-Supply Rejection Ratio
SP_H, SP_V, SP_C INPUTS
High Input Voltage
Low Input Voltage
High Input Current
Low Input Current
ΔV
IN_RESTORE
)
28
50
±2
400
±1
±1
−24
±16
±8
±30
dB
µA
kΩ
mV
mV
µV/°C
+2.05
±2
V/V
%
%
dB
T
A
= -40
o
C to +85
o
C
V
IN
= 0 to +1V
R to G to B
+1.95
+2
±1
0.02
V
CC
, V
EE
=
±4.5V
to
±5.5V
50
70
V
IH
V
IL
IIH
IIL
I
DROOP
V
OH
V
OL
I
OH
(source) = +8mA
I
OL
(sink) = -8mA
V
I
= 5V
V
I
= 0V
2
0.8
0.01
1
±2
2.4
0.5
20
20
V
V
µA
µA
nA
V
V
REST_R, REST_G, REST_B INPUTS
Hold-Mode Droop Current
HSYNC, VSYNC, CSYNC OUTPUTS
High Voltage Level
Low Voltage Level
4
_______________________________________________________________________________________
Graphics Video Sync Adder/Extractor
MAX9540 AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, GND = 0V, R
L
= 150Ω to GND, T
A
= -40°C to +85°C, unless otherwise specified. Typical values are at T
A
=
+25°C.)
PARAMETER
Large-Signal Bandwidth
Slew Rate
Channel-to-Channel Crosstalk
Settling Time
Input Voltage-Noise Density
Input Current-Noise Density
Sync Timing Delay
Sync Timing Skew
Sync Edge Jitter
Line Droop
Field Tilt
Sync Frequency Range
f
H
f
V
SYMBOL
LSBW
SR
X
TALK
t
S
e
n
i
n
t
D
Δ(t
D
)
t
JITTER
f = 50kHz
f = 60Hz
H sync
V sync
V
OUT
= 2V
P-P
V
OUT
= 2V
P-P
V
OUT
= 2V
P-P
at 10MHz
V
OUT
= 2V
P-P
to 0.1%
f = 100kHz
f = 100kHz
H sync only (Note 5)
H sync only (Note 5)
CONDITIONS
MIN
TYP
180
900
-60
15
30
12
-10
1
200
0.01
0.04
15 to 150
40 to 100
MAX
UNITS
MHz
V/µs
dB
ns
nV/√Hz
pA/√Hz
ns
ns
ps
P-P
%
%
kHz
Hz
MAX9539/MAX9540
Note 2:
Note 3:
Note 4:
Note 5:
All devices are 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by design.
DC restore is not active. HSYNC and VSYNC are not applied. REST_R, REST_G, and REST_B are grounded.
DC restore is active. REST_R, REST_G, and REST_B are bypassed with 1nF to ground.
The sync timing error is measured as follows: The input signals are measured from the falling edge of H sync/V sync to the
start of active video, called t1. The output signal is then measured from the falling edge of H sync/V sync to the start of
active video, called t2. All measurements are at the 50% points as shown in Figure 1.
Typical Operating Characteristics
(T
A
= +25°C, V
CC
= +5V, V
EE
= -5V, GND = 0V, R
L
= 150Ω to GND, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
(MAX9539)
MAX9539 toc01
LARGE-SIGNAL FREQUENCY RESPONSE
(MAX9540)
2
1
0
GAIN (dB)
-1
-2
-3
-4
-5
-6
-7
GAIN (dB)
IN_ = 1V
P-P
A
V
= +2V/V
MAX9539 toc02
LARGE-SIGNAL GAIN FLATNESS
vs. FREQUENCY (MAX9539)
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
MAX9539 toc03
3
2
1
0
GAIN (dB)
-1
-2
-3
-4
-5
-6
-7
1
10
100
IN_ = 1V
P-P
A
V
= +2V/V
3
0.3
1000
1
10
100
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
_______________________________________________________________________________________
5
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