cva2417tx Calogic, LLC, cva2417tx Datasheet - Page 3

• Manufacturer Part Number: cva2417tx
• Description: Improved Triple 85mhz Driver
• Manufacturer: Calogic, LLC

CVA2417TX
APPLICATION INFORMATION
The CVA2417TX is a high voltage triple CRT driver suitable
for VGA, Super VGA, IBM
768 non-interlaced display applications.
features 80V operation and low power dissipation. The part is
housed in the industry standard 11 lead TO-220 molded
power package.
grounded for ease of manufacturing and RFI shielding.
Thermal Considerations
The transfer characteristics of the amplifier are shown in
Figure 2. Since this is a class A input stage, power supply
current increases as the input signal increases and
consequently power dissipation also increases.
dissipation per stage is 2.8W, increasing to 4.8W at minimum
output voltage.
The CVA2417TX cannot be used without heat sinking. Figure
2 shows the power dissipated in each channel over the
operating voltage range of the device, Typical "average"
power dissipation with the device output voltage at one half
the supply voltage is 2.8W per channel for a total dissipation
of 8.4W package dissipation. Under white screen conditions,
i.e.: 15V output, dissipation increases to 4.8W per channel or
14.4W total.
maintained below +100
temperature is +50
resistance equal to or less than:
CALOGIC CORPORATION,
FIGURE 3.
R
th
80V
10V
100
14.4W
50
The CVA2417TX case temperature must be
o
C
o
C, then a heat sink is needed with thermal
The heat sink is floating and may be
FALL TIME
5ns/DIV
o
3.5
C. If the maximum expected ambient
o
®
C/W
8514, 1280 x 1024 and 1024 x
237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]
The CVA2417TX
80V
10V
Average
RISE TIME
5ns/DIV
The Thermalloy #14754 is one example of a heatsink that
meets this requirement.
The CVA2417TX maximum load is 600 to ground or V
The output of CVA2417TX is not short circuit proof.
resistance to V
FIGURE 2. CVA2417TX DC Characteristics
90
80
70
60
50
40
30
20
10
0
+
VOLTAGE
or Ground should be > 600 .
1
0dB
2
INPUT VOLTAGE
1
3
POWER
4
BANDWIDTH
10
CORPORATION
5
MHz
6
100
7
5
4
3
2
1
1H-43
+
.
Any