Calogic LLC CVA6627S Datasheet

CORPORATION

Triple 140MHz

CRT Driver

CVA6627S

FEATURES

•• Rise/Fall Ti me. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3ns

•• Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70V

P-P

•• Symmetrical Rise and Fall Time

•• Excellent Gray Scale Linearity

APPLICATION

•• CRT Driver for up to 90khz Monito rs with Resol uti on

upto 1600 x 1280 (Non-Interlaced).

CONNECTION DIAGRAM AND SIM PLIFI ED SCHEM ATIC

DESCRIPTION

The CVA6627S contains three wideband amplifiers designed
specifically to drive high resolution CRTs . It features excellent
gray scale linearity and high load capacitance driving
capability. This device can drive monitors with resolution of
1600 x 1280 (non-interlac ed) with pixel freque ncy of 300 MHz.

The part is housed in 12L Ceramic package with heat sink
grounded.

ORDERING INFORMATION
Part Package Temperature

o

CVA6627S CY12B -20

Q1

C to +100oC

Q2

5.7K

1

3

1

2

4

5

6

7

8

9

IN R

V+ R

GND R

IN G

V+ G

OUT R

OUT G

GND G

V+ B

12

11

10

IN B

OUT B

GND B

250

Q3

Q4

1j-40

CALOGIC CORPORA TION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CVA6627S

ABSOLUTE MAXIMUM RATINGS

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

Storage Tempera tu re. . . . . . . . . . . . . . . . . . -2 5

o

C to +125oC

CORPORATION

Operating Temperature . . . . . . . . . . . . . . . . - 20

o

C to +100oC

Lead Temperat ure . . . . . . . . . . . . . . . . . . . . . . . . . . . +300

o

C

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

SYMBOL CHARACTERISTICS MIN TYP MAX UNITS

I

CC

V

IN DC

V

OUT DC

A

V

Supply Current 26 32 mA
Input DC Level 1.4 1.6 1.8 V
Output DC Level 34 38 42 V
Voltage Ga in 11 13 15 V
Gain Matching 0.2 dB

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

SYMBOL CHARACTERISTICS MIN TYP MAX UNITS

t

r

t

f

BW Bandwidth 140 MHz
Le Linearity 5 %
OS Overshoot 4 %

Rise Time 3.1 4.0 ns
Fall Time 3.1 4.0 ns

OUT

OUT

= 50V

= 50V

P-P

P-P

, T

= +25oC. See Figure 1.

CASE

, T

= +25oC. See Figure 1.

CASE

FIGURE 1. TEST CIRCUIT

V

CC

C4 C6

L1

OUTPUT

C

L

INPUT

C1

C2

R1

R2

C3

2,6,10

V

R4

1/3
CVA6627S

IN

1,5,9
V

CC

4,8,12

V

OUT

D1

R5 R6

D2

3,7,11

GND

R1 = 15Ω
R2 = 430

R4 = 200k

Ω

R5 = 22Ω
R6 = 22Ω

C1 = VARIABLE 20 TO 150pF
TYPICAL 68pF
C2 = VARIABLE 4 to 20pF
TYPICAL 17pF
C3 = 75pF

C4 = 10µf/160V
C6 = 0.01 µf/160V
C = 10pF

L

D1 = DS464
D2 = DS464
L1 = 150nH

1J-32

CALOGIC CORPORAT ION, 237 W hit ney Place , Fremo nt, Califor nia 94539, Telephone: [phone], FAX: [phone]