ta1310ang TOSHIBA Semiconductor CORPORATION, ta1310ang Datasheet - Page 34
ta1310ang
Manufacturer Part Number
ta1310ang
Description
Ntsc Video, Chroma, Deflection, And Distortion Compensation Ic With Yuv Interface And Acb
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TA1310ANG.pdf
(106 pages)
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TEST CONDITIONS
Video stage
NOTE
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).
P
P
P
P
P
1
2
3
4
5
#54 Voltage
(Y Input Pedestal Clamp
Voltage)
#55 Voltage
#56 Voltage
#1 Voltage
Y Input Pedestal Clamp
Error Voltage
ITEM
SW
C
C
C
C
C
54
SW MODE
OPEN OPEN
OPEN OPEN
OPEN OPEN
OPEN
OPEN OPEN
SW
55
SW
ON
56
1)
2)
1)
2)
1)
2)
1)
2)
1)
2)
3)
4)
Set the bus control data to the preset value.
Measure the #54 DC voltage V
Set the bus control data to the preset value.
Measure the #55 DC voltage V
Set the bus control data to the preset value.
Measure the #56 DC voltage V
Set the bus control data to the preset value.
Measure the #1 DC voltage V
Set the bus control data to the preset value.
Set SW
Measure #56 with an oscilloscope as shown in the diagram and calculate∆VPC.
Calculate the voltage differences∆VPC1 and∆VPC0 when the Y mute is on (1) and off (0).
54
to C (connect the Y input to AC-GND).
(TEST CONDITIONS V
34
1
54
55
56
.
.
.
.
CC
MEASUREMENT METHOD
= 9 V / 5 V, Ta = 25 ± 3°C)
TA1310ANG
2005-09-20
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