參數(shù)資料
型號: TA1310N
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDIP56
封裝: 0.600 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-56
文件頁數(shù): 28/101頁
文件大?。?/td> 2221K
代理商: TA1310N
TA1310N
2001-06-25
32
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
1) Set the bus control data to the preset value.
2) Measure the #54 DC voltage V54.
P2
#55 Voltage
C
OPEN
1) Set the bus control data to the preset value.
2) Measure the #55 DC voltage V55.
P3
#56 Voltage
C
OPEN
1) Set the bus control data to the preset value.
2) Measure the #56 DC voltage V56.
P4
#1 Voltage
C
OPEN
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
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 calculate VPC.
4) Calculate the voltage differences VPC1 and VPC0 when the Y mute is on (1) and off (0).
Note 1: When testing, see the picture sharpness test circuit diagram.
Note 2: Ensure the composite signal is always input to pin 38 (SYNC IN).
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