参数资料
型号: TA1310ANG
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDIP56
封装: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-56
文件页数: 35/106页
文件大小: 2686K
代理商: TA1310ANG
TA1310ANG
2005-09-20
34
TEST CONDITIONS
Video stage
(TEST CONDITIONS VCC = 9 V / 5 V, Ta = 25 ± 3°C)
SW MODE
NOTE
ITEM
SW54 SW55 SW56
MEASUREMENT METHOD
P1
#54 Voltage
(Y Input Pedestal Clamp
Voltage)
C
OPEN OPEN
1)
Set the bus control data to the preset value.
2)
Measure the #54 DC voltage V54.
P2
#55 Voltage
C
OPEN OPEN
1)
Set the bus control data to the preset value.
2)
Measure the #55 DC voltage V55.
P3
#56 Voltage
C
OPEN OPEN
1)
Set the bus control data to the preset value.
2)
Measure the #56 DC voltage V56.
P4
#1 Voltage
C
OPEN
ON
1)
Set the bus control data to the preset value.
2)
Measure the #1 DC voltage V1.
P5
Y Input Pedestal Clamp
Error Voltage
C
OPEN OPEN
1)
Set the bus control data to the preset value.
2)
Set SW54 to C (connect the Y input to AC-GND).
3)
Measure #56 with an oscilloscope as shown in the diagram and calculateVPC.
4)
Calculate the voltage differencesVPC1 andVPC0 when the Y mute is on (1) and off (0).
Note 1: When testing, see the picture sharpness test circuit diagram. First turn ACB mode off (bus control).
Note 2: Ensure the composite signal is always input to pin 38 (SYNC IN).
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