ta1310ang TOSHIBA Semiconductor CORPORATION, ta1310ang Datasheet - Page 40

• Manufacturer Part Number: ta1310ang
• Description: Ntsc Video, Chroma, Deflection, And Distortion Compensation Ic With Yuv Interface And Acb
• Manufacturer: TOSHIBA Semiconductor CORPORATION

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
14
15
Self-Diagnosis Y-IN
Y Mute
ITEM
SW
C
A
A
↓
54
SW MODE
SW
B
B
55
OPEN
OPEN
SW
56
1)
2)
3)
4)
1)
2)
3)
4)
5)
Set the bus control data to the preset value.
Set SW
mode on.
When the power supply is increased from V
OK to error.
Next, set SW
Check that there is no problem with the Y IN in read mode.
Set the bus control data to the preset value.
Input a 100-kHz sine wave to TP54 and adjust #54 to 0.7 V
Turn the Y mute on (1) and measure the #56 amplitude VYM1.
Turn the Y mute off (0) and measure the #56 amplitude VYM0.
Calculate the following formula.
G
YM
[dB] = 20 × ℓog (VYM1 / VYM0)
54
to C (connect the Y input to AC-GND), connect #54 to an external power supply (PS), and turn read
54
(TEST CONDITIONS V
to A and input a sine wave from TG-7 to TP54. Apply a signal on #54 as shown in the diagram.
40
CC
MEASUREMENT METHOD
= 9 V / 5 V, Ta = 25 ± 3°C)
54
to V
54
+ 0.7 V, check that in read mode Y-IN changes from error to
p-p
.
SCDC
SCAC
TA1310ANG
2005-09-20