Calogic LLC CVA2403T Datasheet
CORPORATION
1P-38
GND
TAB
7
9
V
CC
11,10,8
12
Ω
12
Ω
V
BIAS
V
OUT
1,3,5
V
IN
2,4,6
Gain/Peaking
Control
= 1000
Ω
R
1
Low Cost
Triple CRT Driver
Preliminary Data Sheet
CVA2403T
FEATURES
•• Rise/Fall Ti me. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0ns
•• Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65V
•• Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V
•• High Input Impedance
APPLICATIONS
•• CRT driver for up to 82kHz mon itor s
•• Excellent Gray Scale Linearity
•• Emitter Peaki n g Option
•• Adjustabl e Gain
CONNECTION DIAGRAM AND SIM PLIFI ED SCHEM ATIC
TOP VIEW
T11A PACKAGE
11
10
9
8
7
6
5
4
3
2
1
GND = TAB
V
OUT
V
OUT
Gain/Peaking
Control
Gain/Peaking
Control
Gain/Peaking
Control
V
2
V
V
V
V
V
OUT
CC
3
BIAS
IN
IN
IN
1
3
2
1
P-P
1N-22
DESCRIPTION
The CVA2403T is a high input impedance wideband triple
amplifier. The device is specifically designed to drive a CRT
featuring a high speed buffer for easy matching to a pre-amplifier,
no crossover distortion for excellent gray scale linearity, external
emitter peaking to maximize the high frequency gain at the cross
hatch pattern and an adjustable gain for ease of use. This
device can drive monitors with resolutions of 1280 X 1024
(interlaced) with pixel frequencies of 220MHz.
The part is housed in the industry standard 11-lead TO-220
molded power pack age. The heat sink is gr ounded.
ORDERING INFORMATION
Part Package Temperature
o
CVA2403T T11A -20
3
2
1
C to +100oC
CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-6 56-290 0, FAX: 510-651-3025
CVA2403T
GND
TAB
1P-39
V
IN
V
BIAS
C1 = 0.01µF
C2 = 100
µ
F
C3 = 0.1
µ
F
C7 = 120pF
D1, D2 = FHD400
R1 = 62
Ω
R2 = 20
Ω
C4 = 100µF
C6 = 8pF
R2
R1
C6
C4C3
C2C1
D2
D1
VIDEO
INPUT
V 9
CC
1,3,5
7
8,10,11
V
OUT
C7
V
PG
2,4,6
TEKTRONIX
FET PROBE
MODEL 620 1
(CAP. 1.5pF)
CVA2403T
ABSOLUTE MAXIMUM RATINGS
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16W
Storage Tempera tu re. . . . . . . . . . . . . . . . . . . -25
o
C to +100oC
CORPORATION
Operating Temperature . . . . . . . . . . . . . . . . . -20
o
C to +100oC
Lead Temperat ure . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300
o
C
DC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DC
INPUT BIAS
= 12V, VIN = 3.4V, V
OUT
= 50V
p-p
. T
CASE
= +25oC.
See Figure 1.
SYMBOL CHARACTERISTICS MIN TYP MAX UNITS
I
cc
V
OUT DC
A
v
AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DC
Supply Current 30 34 40 mA
Output DC Level 40 45 50 V
Voltage Gain 13 15 17 V
Gain Matc h ing 0.2 dB
INPUT BIAS
= 12V, VIN = 3.4V, V
OUT
= 50V
p-p
. T
CASE
= +25oC.
See Figure 1.
SYMBOL CHARACTERISTICS MIN TYP MAX UNITS
T
r
T
f
L
e
OS Overshoot 5 %
Rise Time 4 4.5 ns
Fall Time 44.5ns
Linearity 6%
FIGURE 1. TEST CIRCUIT
CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-6 56-290 0, FAX: 510-651-3025
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