Datasheet U2203B-A Datasheet (TEMIC)

RGB Video Amplifier System for Monitors

Description

The U2203B-A is a wideband video amplifier IC system especially designed for use in high-resolution RGB monitors. The IC includes three well matched video amplifiers, three gated differential amplifiers for black-

Features

D

3 channels, high bandwidth (90 MHz @ –3 dB)

D

Matched attenuators for contrast control

D

Black-level clamping for brightness control

Vs1

1

level clamping and brightness control and the function for simultaneously contrast control. Separate adjustment of the maximum gain of each channel is also possible.

D

Independent gain control of each amplifier

D

ESD protection according to MIL-STD. 883

U2203B

28 Vs1

CONTRAST CAP

CONTRAST CAP23

R VIDEO IN

R CLAMP CAP

G VIDEO IN

GROUND

G CLAMP CAP

B VIDEO IN

B CLAMP CAP

Vin REF

CONTRAST1112

4

5

6

7

8

9

10

2.4V REF

CONTRAST

CONTROL

SUPPLY

REG.

RED

GREEN

BLUE

1k

40

90

1k

40

90

1k

40

90

27 R DRIVE

26 R CLAMP (–)

25 R VIDEO OUT

24 R CLAMP (+)

23 Vs2

22 G DRIVE

21 G CLAMP (–)

20 G VIDEO OUT

19 G CLAMP (+)

18 B DRIVE

17 B CLAMP (–)

13

Vs1

CLAMP GATE

1.4V REF

14

TELEFUNKEN Semiconductors

Rev . A2, 27-Jan-97

U2203B

Figure 1. Block diagram

95 10749

16 B VIDEO OUT

15 B CLAMP (+)

1 (7)

U2203B

Pin Description

V

S1

C

contr

C

contr

V

in, R

C

clamp, R

V

in, G

GND

C

clamp, G

V

in, B

C

clamp, B

V

Bias

V

contr

V

S1

V

Gate

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Figure 2. Pinning

96 12388

28

27

26

25

24

23

22

21

20

19

18

17

16

15

V

R

V

R

V

R

V

S1

R

R–

out, R

R+

S2

G

G–

out, G

G+

B

B–

out, B

B+

Pin Symbol Function

1 V 2 C 3 C 4 V 5 C

clamp, R

6 V

contr contr in, R

in, G

S1

Supply voltage Contrast cap. Contrast cap. Video input (R) Clamp cap. (R)

Video input (G) 7 GND Ground 8 C

clamp, G

9 V

10 C

clamp, B

11 V 12 V 13 V 14 V 15 V 16 V 17 V 18 R 19 V 20 V 21 V 22 R 23 V 24 V 25 V 26 V 27 R 28 V

in, G

Bias

contr

Gate

B+

in, B

B–

G+

out, G

G–

R+

out, R

R–

Clamp cap. (G)

Video input (B)

Clamp cap. (B)

Bias voltage (RGB-inputs)

Contrast control

Supply voltage

S1

Inverted clamp gate

Clamp amplifier (B+)

Video output (B)

Clamp amplifier (B–)

Drive resistor (B)

B

Clamp amplifier (G+)

Video output (G)

Clamp amplifier (G–)

Drive resistor (G)

G

Supply voltage (outputs)

S2

Clamp amplifier (R+)

Video output (R)

Clamp amplifier (R–)

Drive resistor (R)

R

Supply voltage

S1

Absolute Maximum Ratings

Parameters Symbol Value Unit Supply voltage Pins 1, 13, 28 and 23 V Input voltage at all other pins V Video output current Pins 16, 20 and 25 I Junction temperature T Storage temperature range T

Operating Range

Parameters Symbol Value Unit Ambient temperature range T Supply voltage range Pins 1, 13, 23 and 28 VS2, V

2 (7)

amb

V

stg

S

in

13.5 V

0 toV

S

V

28 mA

j

125 °C

–40 to 125 °C

0 to 80 °C

S1

11.0 to 13.0 V

TELEFUNKEN Semiconductors

Rev . A2, 27-Jan-97

U2203B

p

Thermal Resistance

Parameters Symbol Value Unit

Junction ambient (DIP28) R

thJA

Electrical Characteristics

Test conditions unless otherwise specified, reference point Pin 7, T

= VS2 = 12 V, V12 = 6 V (contrast); V14 = 0 V (inv. gating); V15 = V19 = V24 = 2 V (brightness)

V

S1

Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit

DC-values

Supply current VS1 only,

Pins 1, 13 and 28 Input bias voltage Pin 11 V Input bias current Pins 4, 6 and 9 I Switching voltage gating

Pin 14 VG “L” 0.8 1.3 V

“on” Switching voltage gating

Pin 14 VG “H” 1.5 2.0 V

“off” Switching current gating

”on” Switching current gating

”off” Charge current clamping

capacitor Discharge current clamping

capacitor

Video outputs, V

O

Low level V High level V Output offset between two

V14 = 0.8 V

Pin 14

V14 = 2.0 V

Pin 14

V

= 0 V

5,8,10

Pins 5, 8 and 10

V

= 5 V

5,8,10

Pins 5, 8 and 10

Pins 16, 20 and 25

= 0 V V

5,8,10

= V

5,8,10

S

V15, V19, V24 = 2 V

amplifiers

V15, V19, V24 = 4 V

Video gain V15 = V19 = V24 = 4 V (brightness); fIN = 1 MHz Maximum video gain V12 = 12 V G Middle video gain V12 = 5 V GV Dynamic gain range GVD 50 dB Video gain match

(any 2 outputs)

V12 = 12 V

= 5 V

V

12

= 2.2 V 1)

V

12

GVM

GVM GVM

Video bandwidth

unpeaked (C = 0 pF) optimal peaking

V12 = 12 V (f

= 12 V (f

V

12

–3dB –3dB

) )

(C = 27 pF) Video cross talk fIN = 10 kHz

= 10 MHz

f

IN

CT

= 25°C,

amb

I

S1

inREF

2.3 2.5 V 1 5 10

IG “L” –1 –0.01

IG “H” 5 8

ICL+ 0.8 1.0 1.2 mA

ICL– –1.2 –1.0 –0.8 mA

O“L”

V

O“H”

D

V

O

8.0 8.6 V

(2 V)

D

V

O

(4 V)

Vmax

mid

max

mid –30

16.0 17.7 dB

BWV

P

10kHz

10MHz

–50

46 K/W

60 70 mA

0.8 1.0 V

±50 mV

8.5 dB

±0.1 ±0.1 ±0.3

65 90

MHz MHz

–47

m

dB dB dB

dB dB

A

1) Measured 30 dB below maximum gain

TELEFUNKEN Semiconductors

3 (7)

Rev . A2, 27-Jan-97

U2203B

VS(+12V)

R Video in

75

W

G Video in

75

W

B Video in

75

W

100 mF

5 mF

10 k

100 nF

W

10 k

W

10 k

100 nF

W

100 nF

1

2

3

4

5

6

7

9

10

U2203B

28

27

26

25

24

23

22

218

20

19

51

W

100

W

C

R Clamp (–)

To cascade

driver (R)

390

W

100 nF

W

C

390

W

91

100

W

G Clamp (–)

To cascade

driver (G)

Black level

gate I/P

93 7632

4 (7)

10 k

W

100 nF

11

12

13

100 nF

14

10 k

W

Contrast

control

0 ... 12 V

Figure 3. Typical application circuit

18

17

16

15

Black level

(brightness)

control

C

G Clamp (–)

To cascade

driver (B)

390

W

10 k

W

10 k

W

10 nF

TELEFUNKEN Semiconductors

Rev . A2, 27-Jan-97

AC Characteristics

20 18 16 14 12 10

Gain ( dB )

8 6 4 2 0

1 10 100 1000

95 10748

Figure 4. Gain vs. frequency (various peaking), V12 = 12 V (contrast), V15 = V19 = V24 = 4 V (brightness)

U2203B

C = 0 pF C = 10 pF C = 27 pF

C = 47 pF

Frequency ( MHz )

10

0

–10

–20

–30

Relative gain ( dB )

–40

–50

–60

1 10 100 1000

Frequency ( MHz )95 10747

Figure 5. Relative gain vs. frequency (no peaking), V12 = variable (contrast), V15 = V19 = V24 = 4 V (brightness),

0 dBrel = 17.7 dB, C = 0 pF

TELEFUNKEN Semiconductors

Rev . A2, 27-Jan-97

5 (7)

U2203B

10

0

–10

–20

–30

Releative gain ( dB )

–40

–50

–60

1 10 100 1000

Frequency ( MHz )95 10746

Figure 6. Rel. gain vs. frequency (optimized peaking), V12 = variable (contrast), V15 = V19 = V24 = 4 V (brightness),

0 dBrel = 17.7 dB, C = 27 pF

Package Information

Package DIP28

Dimensions in mm

28 15

37.40

36.90

1.54

33.02

0.58

0.48

2.54

4.0

3.8

3.3

0.8

0.5

0.35

0.25

technical drawings according to DIN specifications

15.29

15.19

13.9

13.7

16.1

15.3

13023

114

6 (7)

TELEFUNKEN Semiconductors

Rev . A2, 27-Jan-97

U2203B

Ozone Depleting Substances Policy Statement

It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to

1. Meet all present and future national and international statutory requirements.

2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment.

It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs).

The Montreal Protocol ( 1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances.

TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents.

1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively

2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA

3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.

TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances.

We reserve the right to make changes to improve technical design and may do so without further notice.

Parameters can vary in different applications. All operating parameters must be validated for each customer

application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized

application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,

directly or indirectly, any claim of personal damage, injury or death associated with such unintended or

unauthorized use.

TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany

Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423

TELEFUNKEN Semiconductors

Rev . A2, 27-Jan-97

7 (7)