CORPORATION
1P-23
9
V
CC
1,3,5
V
BIAS
V
OUT
11,9,8
V
IN
R
1
R
4
R
5
R
2
10
R
3
R
6
R
1
TAB = GND
EMITTER
PEAKING
2,4,7
Low Cost
Triple CRT Driver
CVA3407T
FEATURES
•• Rise/Fall Ti me. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0ns
•• Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65V
•• Emitter Peaki n g Option
•• Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V
•• Excellent Gray Scale Linearity
•• Consist ent EMI Perform a nce
APPLICATIONS
•• CRT driver for up to 85kHz monitor s with resolutio n up
to 12 80 x 1 02 4.
•• Excellent Gray Scale Linearity
CONNECTION DIAGRAM AND SIM PLIFI ED SCHEM ATIC
11
10
9
8
7
6
5
4
3
2
1
GND = TAB
V
BIAS
V
IN
V
CC
EMITTER
PEAKING
EMITTER
PEAKING
TOP VIEW
T11A PACKAGE
1
V
IN
2
V
IN
3
EMITTER
PEAKING
V
OUT
V
OUT
V
OUT
3
2
2
1
1
P-P
1P-22
DESCRIPTION
The CVA3407T contains three high impedance wideband
amplifiers, de signed speci fically to drive a CRT. It features no
crossover distortion for excellent gray scale linearity. This device
can drive monitors with resolutions of 1280 x 1024
(non-interlaced) with pixel frequency of 210MHz.
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
CVA3407T T11A -20
3
C to +100oC
CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-6 56-290 0, FAX: 510-651-3025
CVA3407T
GND
TAB
1P-34
V
IN
V
BIAS
C1 = 0.01µF
C2 = 100
µ
F
C3 = 0.1
µ
F
D1, D2 = FHD400
C4 = 100
µ
F
C5 = 27pF
C6 = 8pF
C6
C4C3
C2C1
D2
D1
VIDEO
INPUT
V
CC
11,9,8
10
1,3,5
V
OUT
TEKTRONIX
FET PROBE
MODEL 620 1
(CAP. 1.5pF)
CVA3407T
6
R1 = 47
Ω
2,4,7
R1
C5
ABSOLUTE MAXIMUM RATINGS
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14W
Storage Tempera tu re. . . . . . . . . . . . . . . . . . . -50
o
C to +150oC
CORPORATION
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000V
Operating Temperature . . . . . . . . . . . . . . . . . -20
Lead Temperat ure . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300
o
C to +100oC
o
C
DC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DC
INPUT BIAS
= 12V, VIN = 3.1V, V
OUT
= 50V
p-p
. T
CASE
See Figure 1.
SYMBOL CHARACTERISTICS MIN TYP MAX UNITS
I
cc
I
B
V
OUT DC
A
v
AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DC
Supply Current, Per Chann el 20 30 mA
Bias Current 40 mA
Output DC Level 47 50 53 V
Voltage Gain -11 -13 -15 V
Gain Matc h ing 0.5 dB
INPUT BIAS
= 12V, VIN = 3.1V, V
OUT
= 40V
p-p
. T
CASE
See Figure 1.
SYMBOL CHARACTERISTICS MIN TYP MAX UNITS
T
r
T
f
L
e
Rise Time 5 ns
Fall Time 5ns
Linearity 5%
FIGURE 1. TEST CIRCUIT
= +25oC.
= +25oC.
CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-6 56-290 0, FAX: 510-651-3025