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參數(shù)資料
| 型號： | TA1276AFG |
| 元件分類： | 消費家電 |
| 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)： | 32/51頁 |
| 文件大?。?/td> | 1573K |
| 代理商： | TA1276AFG |
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TA1276AFG
2002-04-01
38
Test Conditions (unless otherwise stated, VCC1 = 5 V, VCC2/VCC3/DEF VCC = 9 V, Ta = 25 ± 3°C)
Switching Mode
Note
Parameter
SW15
SW49
SW50
SW53
Test Conditions
V4
Black Stretch Start Point (2)
C
ON
A
1)
Set the BUS control data to the preset value.
2)
Turn the black stretch gain off (1), turn the Y mute off (1), and turn the video mute off (0).
Input the TG7 linearity to TP53, use pin 78 to adjust the amplitude as in the diagram, set unicolor to the center
(1000000), and measure the resulting amplitude (V43) of pin 11 (R OUT).
3)
Turn the black stretch gain on (0), connect pin 3 to an external power supply (PS), and measure pin 11 (R OUT).
4)
When the black stretch start point 2 data are at the minimum (000), calculate as in the diagram the black stretch start
point differential
V000 for when P is V49 (APL 0%) and for when P is V49 + 1.0 [V] (APL 100%).
5)
Next, when the black stretch start point 2 data are maximum (111), calculate differential
V111 in the same way.
6)
Calculate the following formulas.
PBS1 = (V000/V43) × 100
PBS2 = (V111/V43) × 100
V***
0.7 Vp-p
0.3 Vp-p
Pin 78 waveform
Pin 11 (R
APL 0%
APL 100%
LINEARITY
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