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參數(shù)資料
| 型號： | TA1276AF |
| 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)： | 37/83頁 |
| 文件大小： | 1585K |
| 代理商： | TA1276AF |
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TA1276AF
2002-01-29
42
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
V10
DC Transmission
Compensation Start Point
C
ON
B
C
1)
Repeat steps 1) and 2) of V21.
2)
Measure the amplitude V43 of pin 11, set the PS to V53 + 0.7 V, and adjust V43 to around 1.0 Vp-p using unicolor.
3)
With the DC transmission compensation rate at the minimum (000), increase PS from V53 and plot the relationship
between the voltages of pins 3 and 11.
4)
Next, with the DC transmission compensation rate at the maximum (111), increase PS from V53 and plot the
relationship between the voltages of pins 3 and 11.
5)
With the DC transmission compensation rate at the maximum (111), increase the PS from V53 when the DC
transmission compensation start point reaches the maximum (111) and plot the relationship between the voltages of
pins 3 and 11.
6)
Calculate VDT0 and VDT42 from the following formula.
VDT0 = ((VSP0 V49)/1 [V]) × 100 [%]
VDT42 = ((VSP42 V49)/1 [V]) × 100 [%]
Pin
VPC
DC transmission compensation rate 000
VSP0
Pin
VSP42
DC transmission
compensation start point
DC transmission
compensation start point
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