CALOGIC CVA2400T Low cost triple crt driver Datasheet

Low Cost
Triple CRT Driver
CORPORATION
Preliminary Data Sheet
CVA2400T
FEATURES
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•
•
DESCRIPTION
Rise/Fall Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0ns
Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65VP-P
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V
APPLICATIONS
•
•
•
•
CRT driver for up to 69kHz monitors with resolution up
to 1280 x 1024.
Excellent Gray Scale Linearity
Emitter Peaking Option
Adjustable Gain
The CVA2400T contains three wideband amplifiers, designed
specifically to drive a CRT. It features no crossover distortion for
excellent gray scale linearity, external emitter peaking to
maximize the high frequency gain at cross hatch pattern and
adjustable gain for ease of use. This device can drive monitors
with resolutions of 1280 x 1024 (non-interlaced) with pixel
frequency of 176MHz.
The part is housed in the industry standard 11-lead TO-220
molded power package. The heat sink is grounded.
ORDERING INFORMATION
Part
Package
Temperature
CVA2400T
T11A
-20oC to +100oC
CONNECTION DIAGRAM
VCC
9
11
10
9
8
VOUT
VCC
VOUT
7
6
5
4
3
2
1
R1 = 1200Ω
VOUT
12Ω
VBIAS
VBIAS
Gain/Peaking
Control
VIN
VIN
12Ω
7
1,3,5
GND = TAB
TOP VIEW
T11A PACKAGE
VO
11,10,8
Gain/Peaking
Control
VIN
Gain/Peaking
Control
VIN
1J-13
2,4,6
Gain/Peaking
Control
GND
TAB
1N-19
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CVA2400T
CORPORATION
ABSOLUTE MAXIMUM RATINGS
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W
Storage Temperature . . . . . . . . . . . . . . . . . . . -25oC to +100oC
Operating Temperature . . . . . . . . . . . . . . . . . -20oC to +100oC
Lead Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300oC
DC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DCINPUT BIAS = 12V, VIN = 1.8V, VOUT = 50Vp-p. TCASE = +25oC.
See Figure 1.
SYMBOL
CHARACTERISTICS
MIN
TYP
MAX
UNITS
Icc
Supply Current
28
mA
VOUT DC
Output DC Level
52
V
Av
Voltage Gain
15
V/V
Gain Matching
0.2
dB
AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DCINPUT BIAS = 12V, VIN = 3.4V, VOUT = 50Vp-p. TCASE = +25oC.
See Figure 1.
SYMBOL
CHARACTERISTICS
MIN
TYP
MAX
UNITS
Tr
Rise Time
5
ns
Tf
Fall Time
5
ns
Le
Linearity
6
%
OS
Overshoot
5
%
FIGURE 1. TEST CIRCUIT
VCC 9
C3
D1
VBIAS
C1
C4
7
CVA2400T
C2
VIN
VIDEO
INPUT
1,3,5
C7
C1 = 0.01µF
C2 = 100µF
C3 = 0.1µF
C7 = 120pF
R1
8,10,11
C6
D2
VP G
2,4,6
R2
VOUT
TEKTRONIX
FET PROBE
MODEL 6201
(CAP. 1.5pF)
GND
TAB
C4 = 100µF
C6 = 8pF
R1 = 62Ω
R2 = 20Ω
D1, D2 = FHD400
1N-20
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CVA2400T
CORPORATION
FIGURE 2. APPLICATION CIRCUIT
VCC 9
C3
VBIAS
C1
R3
D1
7
C2
CVA2400T
VIN
VIDEO
INPUT
1,3,5
L
VOUT
8,10,11
C5
R1
R4
R5
SPARK
GAP
D2
VPG
2,4,6
R2
C7
C4
DC BIAS
GND
TAB
R1 = 62Ω
R2 = 20Ω
R3 = 47Ω
R4 = 47(1/2W)Ω
R7 = 33Ω
R8 = 39Ω
R10 = 680Ω
C1 = 0.01µF
C2 = 100µF
C3 = 0.1µF
C4 = 100µF
C5 = 2.2µF
C7 = 40 - 120pf
D1, D2 = FHD400
L = 330 - 390nH
1N-21
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CVA2400T
CORPORATION
Information furnished by Calogic is believed to be accurate and reliable. However, no responsibility is assumed for its use: nor for any infringement of patents or other
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Calogic.
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
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