
TA1276AF
2002-01-29
54
Test Conditions (unless otherwise stated, VCC1 = 5 V, VCC2/VCC3/DEF VCC = 9 V, Ta = 25 ± 3°C)
Switching Mode
Note
Parameter
SW33
SW34
SW35
SW37
SW38
SW39
SW51
SW52
SW53
Test Conditions
T15
ABL Point
↑
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)
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 VABL1, ABLP5 = VABL6 VABL1
ABLP2 = VABL3 VABL1, ABLP6 = VABL7 VABL1
ABLP3 = VABL4 VABL1, ABLP7 = VABL8 VABL1
ABLP4 = VABL5 VABL1, ABLP8 = VABL9 VABL1
T16
ABL Gain
A
B
C
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.
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 VABL10, ABLG5 = VABL15 VABL10
ABLG2 = VABL12 VABL10, ABLG6 = VABL16 VABL10
ABLG3 = VABL13 VABL10, ABLG7 = VABL17 VABL10
ABLG4 = VABL14 VABL10, ABLG8 = VABL18 VABL10
T17
RGB Output Mode
↑
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)