Datasheet CVA1556N Datasheet (Calogic LLC)

CORPORATION

1T-26

GND

V

CC

V

B

V

IN

GAIN/PEAK

R

POWER

V

OUT

4

Q1

Q2

Q3

Q4

CRT Driver

Preliminary Data Sheet

CVA1556N

FEATURES

•• Little or No Heat Sink Required

•• Ease of Use

•• Emitter Peaki n g

•• Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <8.0ns

•• Fall Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <8ns

APPLICATIONS

•• 14", 15" and 17" Monitors with 69KHz Scannin g

Frequency

CONNECTION AND BLOCK DIAG RAMS

DESCRIPTION

The CVA1556N CRT driver amplifier i s a very low co st solution
designed for monitors up to 69KHz. This product is designed to
replace the discrete solution for the 14", 15" and 17" m onitors.

ORDERING INFORMATION
Part Package Temperature

o

CVA1556N 8-PDIP 0

C to +1 1 0oC

V

BIAS

N/A

V

GAIN/PEAKING

CONTROL

1

2

IN

3

4

8

R

POWER

V

7

CC

V

6

OUT

GND

5

1S-45

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CVA1556N

3

V

IN

R4

R3

R6

C2

R1 = 1

.5K (5W)

R2 = 33W
R3 = 50

W

R4 = 100

W

R5 = 33

W

R6 = 820

W

R7 = 47

W

C1 = 10mF
C2 = .01

m

F

C3 = 47pF
L1 = .56

m

H

4

R2

1U-14

CVA1556N

1

V

OUT

R5

C3

R1

C1

L1

R7

8

7

6

5

80V

+12V

ABSOLUTE MAXIMUM RATINGS

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V

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

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 175

o

C to +125oC

o

CORPORATION

Operating Temperature ( Cas e) . . . . . . . . . . . . . 0

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

o

C to +1 1 0oC

o

C

C

DC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 12pF , V

SYMBOL CHARACTERISTICS MIN TYP MAX UNITS

I

cc

V

OUT DC

A

v

Supply Current 20 26 mA
Output DC Level 44 50 56 V
Voltage Gain 13 15 V

AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 12pF , V

SYMBOL CHARACTERISTICS MIN TYP MAX UNITS

T

r

T

f

L

e

OS Overshoot 3 %

Rise Time 7.5 9 ns
Fall Time 7.5 9 ns
Linearity 5%

= 12V, VIN = 2.7V, RL = 1500Ω, T

BIAS

= 12V, VIN = 2.7V, RL = 1500Ω, T

BIAS

CASE

CASE

= +25oC.

= +25oC.

FIGURE 1. TEST AND APPLICATION CIRCUIT

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

VIN(VOLTS)

V

OUT

(VOLTS)

80

70

60

50

40

30

20

10

0

2

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2
0

-0.2

0

0.2

0.5

0.7

1.0

1.2

1.5

1.7

2.0

2.2

2.5

2.7

3.0

3.2

3.5

3.7

4.0

4.2

4.5

4.7

5.0

5.2

5.5

5.7

6.0

V

OUT

Q3-POWER
POWER/OUTPUT STAGE

1T-25

1S-50

20ns/DIV

10V/DIV

FALL TIME

-2.75V

7.25V

1T-02

20ns/DIV

10V/DIV

CROSS HATCH

BLACK BACKGROUND

-1.75V

8.25V

CORPORATION

CVA1556N

APPLICAT ION INFORMATION

The CVA1556N is a high voltage triple CRT driver suitable for
VGA, Super VGA, IBM

®

8514, 1024 x 768 non-interlaced
display applications. The CVA1556N features 80V operation
and low power dissipation. The part is housed in the industry
standard 8-pin PDIP.

Thermal Considerati ons

The transfer characteristics of the CVA1556N application
(

Figure 2

.) are shown in

Figure 3.

Since this is a class A input
stage, power supply current increases as the input signal
increases and conseq uen tly po wer dissipat ion also incr ea ses.

The CVA1556N can be used without a heat sink. Under white
screen condition, i.e. 25V output, dissipation is 0.6W/channel.
Under gray level conditions C

=12pf, V

L

OUT

= 45

P-P

, the

dissipation is 1.1W/channel.

+

The CV A1556N m axim um load is 600Ω to ground or V
The output of CVA1556N is not short ci rc uit pr oof . Any r esi st anc e

+

or Ground should be more than 600Ω.

to V

.

TYPICAL CHARACTERISTIC S

7.25V

RISE TIME

FIGURE 2. CVA1556 N DC CHARACTERISTI CS

10V/DIV

-2.75V

8.25V

-2.75V

CROSS HATCH

WHITE BACKGROUND

10V/DIV

20ns/DIV

20ns/DIV

1S-49

1T-01

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CVA1556N

TYPICAL APPLICA TION

1 P101

R

2 P101

GND

3 P101

G

4 P101

GND

5 P101

B

6 P101

GND

7 P101

CLAMP

8 P101

9 P101

GND

CORPORATION

R104

15K

21

N

+
P

R106

100

C107

0.1U
V

C106

0.1U
V

C107

0.1U
V

C108

0.1U
V

C105
10U
16V

1

2

4

6

7

8

9

102

20

19

183

2

R107
390

1

17

2

1

165

N
+

P

CVA1233

15

2

R108
390

1

14

2

1

13

2

R109
390

1

12

2

1

11

1

2

C110

0.1U
V

C126
10U
16V

C111

0.1U
V

C112

0.1U
V

R156
100
W

21

2

3

1

L102

4U7

21

2

3

1

21

2

3

1

R110

18K

VR103
10K
R-GAIN

21

R111

18K

VR104
10K
G-GAIN

R112

18K

VR105
10K
B-GAIN

CONTINUED ON NEXT PAGE

1U-15A

VR101

1

10K

R105

15K

VR102

21

10K

3

2

L101

4U7

21

1

3

2

2

1

1

C109

0.1U
V

2

1

2

1

2

1

2

1

CLAMP+

C101

47u

V

PN

+

2

R101
75
W

1

C102

47u

V

PN

+

2

R102
75
W

1

C103

47u

V

PN

+

2

R103
75
W

1

CONTRAST

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

R114

100

1

2

3

4

8

7

6

5

R117

22

R120

33

R123

33

R126

100

C119

27

R129

1.5K

CVA1556N

L109

R133

C126

???

C116

???

C140

10.4

100V

L111

D3

D4

R113
????

1

2

3

4

8

7

6

5

R116

22

R119

33

R122

33

R125

100

C118

27

R128

???

CVA1556N

L103

R112

C125

???

C115

???

C130

???

100V

L111

D1

D2

R115

100

1

2

3

4

8

7

6

5

R118

22

R121

33

R124

33

R127

100

C120

27

R130

1.5K

CVA1556N

L110

R134

C127

???

C117

???

C150
10

m

F

100V

L108

D5

D6

C160

10

m

CONTINUED ON NEXT PAGE

1U-15BB

CORPORATION

TYPICAL APPLICA T ION (continue d)

CVA1556N

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CVA1556N

TYPICAL APPLICA T ION (continue d)

VR106

100K

VR107

100K

VR108

100K

CORPORATION

+

C121

1

+

C122

1

1415

91011121316

CVA4502

1234 567 8

C121
10

m

F

L104

.68

R147

-

m

F

-

m

F

820

L105

.68

R149

820

R148

47

1/2W

R150

47

1/2W

R135

???

R136

R137

???

???

SP103

D8 D9

C130
????

CRT101

CRT

G1G2G4G2

D7

SP101

SP102

C131
330P

JP101

C132
.001

R154
15K

m

F

1/2W

G1

H

+12V

V1

C114
10U

+80V

1U-15C

+

C123

1

D104

R153

1.5K

L106

.68

R151

-

m

F

820

R150

47

1/2W

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

1T-04A

CORPORATION

CUIRCUT BOARD

CVA1556N

CALOGIC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CVA1556N

CUIRCUT BOARD

CORPORATION

1T-04B

Inform at ion furni shed by Calogic is believed to be accurate and reliable. Howe ver, no responsibility is assum ed for its use: nor for any in fring eme nt of pate nts 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 Whitne y Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]