TA1276AFG Datasheet, PDF(54/83 Page) Toshiba Semiconductor – PAL/NTSC Video Chroma And Deflection IC For CTV

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

TA1276AFG Datasheet, PDF (54/83 Pages) Toshiba Semiconductor – PAL/NTSC Video Chroma And Deflection IC For CTV

◁

Note

Parameter

T15 ABL Point

T16 ABL Gain

T17 RGB Output Mode

TA1276AFG

SW33

SW34

SW35

Test Conditions (unless otherwise stated, VCC1 = 5 V, VCC2/VCC3/DEF VCC = 9 V, Ta = 25 Â± 3Â°C)

Switching Mode

SW37 SW38 SW39 SW51 SW52 SW53

Test Conditions

1) Measure the DC voltage of pin 8. (VABL1)

2) Set the subaddress (16) data to (1C).

3) Applying external voltage to pin 8, lower the pin voltage from 6.5 V.

Measure the voltage of pin 8 when the voltage of pin 11 starts to change.

(VABL2)

C 4) Change the data of subaddress (16) to (3C), (5C), (7C), (9C), (BC), (DC),

and (FC), and repeat step 3) for each of these data. (VABL3, VABL4,

VABL5, VABL6, VABL7, VABL8, VABL9)

5) ABLP1 = VABL2 â VABL1, ABLP5 = VABL6 â VABL1

ABLP2 = VABL3 â VABL1, ABLP6 = VABL7 â VABL1

ABLP3 = VABL4 â VABL1, ABLP7 = VABL8 â VABL1

ABLP4 = VABL5 â VABL1, ABLP8 = VABL9 â VABL1

1) Apply 6.5 V from an external power supply to pin 8.

2) Set the subaddress (16) data to (00). Set the brightness to the maximum.

3) Measure the voltage of pin 11. (VABL10)

4) Apply 4.5 V from an external power supply to pin 8.

â 5) Change the data of subaddress (16) to (00), (04), (08), (0C), (10), (14),

(18), and (1C), and repeat step 3) for each of these data.(VABL11,

VABL12, VABL13, VABL14, VABL15, VABL16, VABL17, VABL18)

6) ABLG1 = VABL11 â VABL10, ABLG5 = VABL15 â VABL10

ABLG2 = VABL12 â VABL10, ABLG6 = VABL16 â VABL10

ABLG3 = VABL13 â VABL10, ABLG7 = VABL17 â VABL10

ABLG4 = VABL14 â VABL10, ABLG8 = VABL18 â VABL10

1) Adjust the brightness so that the picture period voltage of pin 11 is set to

2.5 V.

2) Set the subaddress (16) data to (01).

3) Measure the picture period voltages of pins 11, 13, and 15.

(V43R, V42R, V41R)

4) Change the subaddress (16) data to (02) and repeat step 3).

(V43G, V42G, V41G)

5) Change the subaddress (16) data to (03) and repeat step 3).

(V43B, V42B, V41B)

2002-04-01

▷