rgb switching circuit - F5AD

Input 0 V on Pins 8, 10. 0.3. V. ZOFB. FB Output Impedance. Pin 9 High Level. 30 ... 2.54. 0.100 e3. 17.78. 0.700. F. 7.1. 0.280. I. 5.1. 0.201. L. 3.3. 0.130. Z. 1.27.
Télécharger le PDF
48KB taille 5 téléchargements 319 vues
commentaire
Report
TEA5114A RGB SWITCHING CIRCUIT

.. . ..

25MHz BANDWIDTH CROSSTALK : 55dB SHORT CIRCUIT TO GROUND OR VCC PROTECTED ANTI SATURATION GAIN CHANGING VIDEO SWITCHING DIP16 (Plastic Package) ORDER CODE : TEA5114A

PIN CONNECTIONS

R1 INPUT

1

16

R OUTPUT

GND

2

15

FB R INPUT

R 2 INPUT

3

14

V CC

G1 INPUT

4

13

G OUTPUT

G2 INPUT

5

12

FB G INPUT

B 1 INPUT

6

11

B OUTPUT

B 2 INPUT

7

10

FB 2 + FB B INPUT

FB 1 INPUT

8

9

5114A-01.EPS

DESCRIPTION This integrated circuit provides RGB switching allowing connections between peri TV plug, internal RGB generator and video processor in a TV set. The input signal black level is tied to the same reference voltage on each input in order to have no differential voltage when switching two RGB generators. An AC output signal higher than 2 Vpp makes gain going slowly down to 0dB to protect the TV set video amplifier from saturation. Fast blanking output is a logicial OR between FB1 (Pin 8) and FB2 (Pin 10).

FB OUTPUT

BLOCK DIAGRAM

16

15

14

G=2

13

12

G=2

11

10

9

OR

G=2

VREF

May 1996

2

3

4

5

6

7

8

TEA5114A

5114A-02.EPS

1

1/4

TEA5114A ABSOLUTE MAXIMUM RATINGS Value 18

V

Tj

Junction Temperature

– 40 to 150

°C

Tstg

Storage Temperature

– 40 to 150

°C

ZL

Minimum Load Resistor on Each Output

300 150

Ω Ω

0 to 70

°C

VCC

Tamb

Supply Voltage

Unit

VCC = 12 V VCC = 10 V

Operating Ambient Temperature

THERMAL DATA Symbol R th(j-a)

Parameter Junction-ambient Thermal Resistance

Value

Unit

80

°C/W

5114A-01.TBL

Parameter

5114A-02.TBL

Symbol

ELECTRICAL OPERATING CHARACTERISTICS Tamb = 25 °C, VCC = 12 V, ZL (RGB) = 300 Ω VCC = 10 V, ZL (RGB) = 150 Ω (unless otherwise specified) Min.

Typ.

Max.

Unit

VCC

Supply Voltage

9

12

13.2

V

ICC

Supply Current without Load VCC = 12 V

20

30

40

mA

VON

Black Level Output Voltage (on pins 11, 13, 16 square wave output signal 1 kHz - 1 Vpp) Tj = 25 °C (5mV/°C typical variation)

1.8

2.5

2.9

V

GRGB

Gain of Each Channel Pins 11, 13, 16 F = 1 MHz , Vin = 0.5 Vpp

5

5.5

6

dB

BRGB

Bandwidth (– 3 dB) VO = 1 Vpp

18

22

VGC

Threshold Output Voltage for Gain Changing (– 0.5 dB)

2

VR

Video Rejection between Two Inputs R, G or B F = 1 MHz Sinus VO = 1 Vpp

50

ZIRGB

Input Impedance on Pins 1, 3, 4, 5, 6, 7 VO = 1 Vpp

10

ZORGB

R, G, B Output Impedance on Pins 11, 13, 16

TFB

MHz Vpp

55

dB kΩ 15

FB rising and falling time on pin 9. 1 Vpp Input Voltage Pins 8, 10

20

Ω ns

VIHFB

FB High Level Input Voltage on Pins 8, 10, 12, 15

VILFB

FB Low Level Input Voltage on Pins 8, 10, 12, 15

0.4

V

ZIFB

Input Impedance on Pins 8, 10, 12, 15

0.7

1

1.3

kΩ

VOHFB

High Level FB Output Voltage (pin 9) Input 1 V on Pins 8, 10

0.8

1

1.2

V

VOLFB

Low Level FB Output (pin 9) Input 0 V on Pins 8, 10

0.3

V

ZOFB

FB Output Impedance Pin 9 High Level

30

Ω

TdFBRGB

2/4

Parameter

Delay Time between FB Inputs and R, G, B Switching

1

4

0

20

V

ns

5114A-03.TBL

Symbol

TEA5114A TEST DIAGRAM OUTPUTS R

3 x ZL

G

B

R G B + FB2 VCC

16 1µF

14

15

13

12

11

10

9

6

7

8

100nF

SWITCHES CONTROL

FAST BLANKING OUTPUT

TEA5114A 1

2

3

4

5

6 x 47nF

FAST BLANKING INPUT

R1

R2

G1

G2

B1

5114A-03.EPS

6 x 75Ω

B2

INPUTS

TYPICAL R, G, B SWITCHING APPLICATION Vcc = 12V Vcc = 10V

ZL ZL

300Ω 150Ω

TO VIDEO PROCESSOR

Rout Typical output Signal 1Vpp ZL

Gout

0.1µF

Bout

0.1µF

ZL

FBout 0.1µF

ZL

VCC 16

15

14

13

12

11

10

9

4.7µF G=2

G=2

OR

G =2

VREF

1

2

3

FB2

4

5

6

7

8

TEA5114A B2 G2 2nd GENERATOR R2

6 x 100nF 39Ω

39Ω

39Ω

R1

G1

B1

5114A-04.EPS

39Ω

FB1

1st GENERATOR Peritelevision plug standard input value 1Vpp

3/4

TEA5114A

PM-DIP16.EPS

PACKAGE MECHANICAL DATA 16 PINS – PLASTIC DIP

a1 B b b1 D E e e3 F I L Z

Min. 0.51 0.77

Millimeters Typ.

Max. 1.65

Min. 0.020 0.030

0.5 0.25

Inches Typ.

Max. 0.065

0.020 0.010 20

8.5 2.54 17.78

0.787 0.335 0.100 0.700

7.1 5.1 3.3

0.280 0.201 0.130

1.27

0.050

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publ ication are subject to change without notice. This pub lication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.  1996 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license und er the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.

4/4

DIP16.TBL

Dimensions