Calogic LLC CVA3424T, CVA3424AT Datasheet

CORPORATION

185MHz CRT Driver

CV A3424 A / CVA3 424

FEATURES

Bandwi dt h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185MHz

••

Rise/Fall Ti me. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 ns

••

Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V

••

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80V

••

APPLICATIONS

CRT Driver for 2000 x 1600, 1600 x 1280 and 1280 x 1024

••

Monitors

CONNECTION DIAGRAM AND SIM PLIFI ED SCHEM ATIC

11

V

cc

10

NC

9

V

out

8

GND

7

GND

6

GND

5

NC

4

NC

3

V

in

2

NC

1

NC

P-P

DESCRIPTION

The CVA3424 Family is a video driver amplifier designed
specially to drive high resolution color monit ors. With rise and
fall time of under 2.5ns and 185MHz bandwidth, this device
will provide excellent drive capability for the 2000 x 1600,
1600 x 1280 and 1280 x 1024 monitors.

ORDERING INFORMATION
Part Package Temperature

o

CVA3424AT TO-220 -20
CVA3424T TO-220 -20

V

CC

11

3.66kΩ

V

in

3

142Ω

R

B

GND
6,7,8

CVA3424

R

F

C to +90oC

o

C to +90oC

V

out

9

1B-04

PIN 1 DESIGNATOR

T11A

1C-04

CVA3424A / CV A3424

ABSOLUTE MAXIMUM RATINGS

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85V

Storage Tempera tu re. . . . . . . . . . . . . . . . . . -25

o

C to +100oC

CORPORATION

Operating Tempera tu re . . . . . . . . . . . . . . . . . -20

o

C to +90oC

Lead Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +300

o

C

DC ELECTRICAL CHARACTERISTICS VS = 80V, CL = 10pF , V

SYMBOL CHARACTERISTICS MIN TYP MAX UNITS

I

CC

V
V
A

inDC

outDC

V

Supply Current 45 55 mA
Iput DC Level 1.4 1.6 1.8 V
Output DC Level 34 40 46 V
Voltage Ga in 11 13 15 V
Gain Matching 0.2 dB

AC ELECTRICAL CHARACTERISTICS VS = 80V, CL = 10pF , V

SYMBOL CHARACTERISTICS

t

r

t

f

BW Bandwidth 185 150 MHz
Le Linearity 5 5 %
OS / US Overshoot / Undershoot 8 8 %

Rise Time 2.2 2.9 2.5 3.5 ns
Fall Time 2.5 2.9 2.7 3.5 ns

MIN TYP MAX MIN TYP MAX

CVA3424A CVA3424

out

out =

= 40V

40V

. See Figure 1. TA = +125oC unless otherwise note d.

p-p

. See Figure 1. TA = +125oC unless otherwise noted.

p-p

UNITS

FIGURE 1. TEST CIRCUIT

INPUT

C2

R1 = 270 Ω
R2 = 12kΩ (1 W)
R4 = 300k Ω
R5 = 15Ω
R6 = 15Ω

C3

R1

R4

39

V

in

C2 = Variable 4 to 150pF
Typical 27pF
C3 = 46pF
C4 = 10µf/160V

11

CVA3424

6,7,8
GND

V

CC

C4 C6

R2

V

CC

V

out

D1

R5 R6

L1

D2

C6 = 0.01µf/160V
C = 10pF (Including

L

Parasitics)

D1 = DS464
D2 = DS464
L1 = 150nH

1

OUTPUT

C

L

1B-05