參數(shù)資料
型號(hào)： TA1276AF
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝： 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80
文件頁數(shù)： 53/83頁
文件大?。?/td> 1585K
代理商： TA1276AF
TA1276AF
2002-01-29
57
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
T21
Analog RGB White Peak Slice
Level
A
↑
1)
Repeat step 1) of T20.
2)
Apply 5 V from an external power supply to pin 27.
3)
Set the RGB contrast data to the maximum (7F).
4)
Connect an external power supply to pin 22, increase the voltage gradually
from 3.0 V, and measure the picture period amplitude voltage when pin 11
is clipped.
5)
As in steps 3) and 4) above, input to pin 24 and measure pin 13, then input
to pin 25 and measure pin 15.
T22
Analog RGB Black Peak
Limiter Level
↑
1)
Repeat step 1) of T20.
2)
Apply 5 V from an external power supply to pin 27.
3)
Set the RGB contrast data to the maximum (7F).
4)
Connect an external power supply to pin 22, decrease the voltage
gradually from 4.5 V, and measure the voltage when pin 11 is clipped.
5)
As in steps 3) and 4) above, input to pin 24 and measure pin 13, then input
to pin 25 and measure pin 15.
T23
RGB Contrast Adjustment
Characteristics
A
or
B
A
or
B
A
or
B
A
B
A
1)
Repeat step 1) of T20.
2)
Apply 5 V from an external power supply to pin 27.
3)
Input signal 1 (f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) to pin 22.
4)
Measure the picture period amplitude of pin 11 when the RGB contrast
data change to the maximum (7F), the center (40), and the minimum (00).
(vuTXRMAX, vuTXRCNT, vuTXRMIN)
5)
Calculate the maximum and minimum amplitude ratios using decibel
conversion. (DRG
+, DRG)
6)
As in steps 3), 4) and 5) above, input to pin 24 and measure pin 13, then
input to pin 25 and measure pin 15.
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