TA1316AN Datasheet, PDF (90/115 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

TA1316AN
Note
Parameter
No.
T12 ABL point
T13 ABL gain
SW3
C
C
SW4
B
B
SW5
B
B
Test Conditions
SW mode
Test Method (test conditions: V_CC = 9 V/2 V, Ta = 25° ± 3°C)
SW33 SW34 SW35 SW37 SW38 SW39
A
A
A
A
A
A (1) Measure pin 53 DC voltage VABL1.
(2) Set sub-address (1B) data to 1C.
(3) Apply external power supply to pin 53 and decrease voltage from 6.5 V. When pin 43 voltage
starts changing, measure pin 53 voltage VABL2.
(4) Repeat step (3) above, making the following changes:
Set sub-address (1B) data to 3C, 5C, 7C, 9C, BC, DC and FC and measure the following
voltages on pin 53: VABL3, VABL4, VABL5, VABL6, VABL7, VABL8 and VABL9.
(5) ABL_P1 = VABL2 − VABL1
ABL_P5 = VABL6 − VABL1
ABL_P2 = VABL3 − VABL1
ABL_P6 = VABL7 − VABL1
ABL_P3 = VABL4 − VABL1
ABL_P7 = VABL8 − VABL1
ABL_P4 = VABL5 − VABL1
ABL_P8 = VABL9 − VABL1
A
A
A
A
A
A (1) Apply external power supply of 6.5 V to pin 53.
(2) Set sub-address (1B) data to 00.
(3) Set BRIGHTNESS to maximum.
(4) Apply external power supply of 4.5 V to pin 53.
(5) Repeat step (3) above, making the following changes:
Set sub-address (1B) data to 00, 04, 08, 0C, 10, 14, 18 and 1C and measure the following
voltages on pin 53: VABL11, VABL12, VABL13, VABL14, VABL15, VABL16, VABL17 and
VABL18.
(6) ABL_G1 = VABL11 − VABL10
ABL_G2 = VABL12 − VABL10
ABL_G3 = VABL13 − VABL10
ABL_G4 = VABL14 − VABL10
ABL_G5 = VABL15 − VABL10
ABL_G6 = VABL16 − VABL10
ABL_G7 = VABL17 − VABL10
ABL_G8 = VABL18 − VABL10
90
2002-10-04