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PDF MAX9540 Data sheet ( Hoja de datos )
| Número de pieza | MAX9540 | |
| Descripción | (MAX9539 / MAX9540) Graphics Video Sync Adder/Extractor | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX9540 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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19-0602; Rev 2; 1/07
EVAALVUAAILTAIOBNLEKIT
Graphics Video Sync Adder/Extractor
General Description
www.dTathaesheMetA4uX.9co5m39/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.
Applications
Enterprise Class (Blade) Servers
Laptop PCs
Web Appliances
Keyboard-Video-Mouse (KVM)
Features
o 3-Wire RBG to 5-Wire RBGHV Interface
o Supports VGA-to-UXGA Resolution
o Low Offset Voltage (±1mV)
o 180MHz Large-Signal Bandwidth
Ordering Information
PART
PIN-
PACKAGE
PKG
CODE
DESCRIPTION
MAX9539EUI+* 28 TSSOP
U28-3
Sync Adder
MAX9539EUI
28 TSSOP
U28-3
Sync Adder
MAX9540EUI+* 28 TSSOP
U28-3 Sync Extractor
MAX9540EUI
28 TSSOP
U28-3 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.
Pin Configurations appear at end of data sheet.
Chipset Diagram
H
V MAX9539 R
RG
GB
B
H
V
R MAX9540 C
GR
BG
B
________________________________________________________________ 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.
1 page  
Graphics Video Sync Adder/Extractor
MAX9540 AC ELECTRICAL CHARACTERISTICS
www.d(aVtaCsChe=et+45uV.c,oVmEE = -5V, GND = 0V, RL = 150Ω to GND, TA = -40°C to +85°C, unless otherwise specified. Typical values are at TA =
+25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
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
LSBW
SR
XTALK
tS
en
in
tD
∆(tD)
tJITTER
VOUT = 2VP-P
VOUT = 2VP-P
VOUT = 2VP-P at 10MHz
VOUT = 2VP-P to 0.1%
f = 100kHz
f = 100kHz
H sync only (Note 5)
H sync only (Note 5)
f = 50kHz
180 MHz
900 V/µs
-60 dB
15 ns
30 nV/√Hz
12 pA/√Hz
-10 ns
1 ns
200 psP-P
0.01 %
Field Tilt
f = 60Hz
0.04 %
Sync Frequency Range
fH H sync
fV V sync
15 to 150
40 to 100
kHz
Hz
Note 2: All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by design.
Note 3: DC restore is not active. HSYNC and VSYNC are not applied. REST_R, REST_G, and REST_B are grounded.
Note 4: DC restore is active. REST_R, REST_G, and REST_B are bypassed with 1nF to ground.
Note 5: 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
(TA = +25°C, VCC = +5V, VEE = -5V, GND = 0V, RL = 150Ω to GND, unless otherwise noted.)
LARGE-SIGNAL FREQUENCY RESPONSE
(MAX9539)
3
2
IN_ = 1VP-P
AV = +2V/V
1
0
-1
-2
-3
-4
-5
-6
-7
1 10 100 1000
FREQUENCY (MHz)
LARGE-SIGNAL FREQUENCY RESPONSE
(MAX9540)
3
2
IN_ = 1VP-P
AV = +2V/V
1
0
-1
-2
-3
-4
-5
-6
-7
1 10 100 1000
FREQUENCY (MHz)
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
1
LARGE-SIGNAL GAIN FLATNESS
vs. FREQUENCY (MAX9539)
10 100
FREQUENCY (MHz)
1000
_______________________________________________________________________________________ 5
5 Page 
Graphics Video Sync Adder/Extractor
www.datasheet4u.com
* OPTIONAL BULK CAPACITANCE
0.1µF
IN_R 1
MAX9539
REST_R 3
1nF
IN_G 6
+5V
VCC
24
10µF*
x2
DC
RESTORE
x2
Functional Diagrams
28 OUT_R
23 OUT_G
REST_G 8
1nF
IN_B 11
DC
RESTORE
x2
18 OUT_B
REST_B 13
1nF
VSYNC 16
HSYNC 26
DC
RESTORE
H/V SYNC
LOGIC
17 27
SP_V SP_H
0.1µF
19
VEE
10µF*
-5V
2, 5, 7, 12
GND
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MAX9540.PDF ] | |
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