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TB1227CNG Datasheet(PDF) 61 Page - Toshiba Semiconductor

Part No. TB1227CNG
Description  VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TV
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Maker  TOSHIBA [Toshiba Semiconductor]
Homepage  http://www.semicon.toshiba.co.jp/eng
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TB1227CNG Datasheet(HTML) 61 Page - Toshiba Semiconductor

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TB1227CNG
2004-05-24
61
TEST CONDITION
Unless otherwise specified : H, RGB VCC = 9V ; VDD, Fsc VDD, Y / C VCC = 5V ; Ta = 25±3°C ; BUS = preset value ;
pin 51 input video signal = 50 system
(Note) “×” in the data column represents preset value at power ON.
NOTE
ITEM
SUB-ADDRESS & BUS DATA
MEASURING METHOD
DV16 50 System VBLK
Start Phase
DV17 50 System VBLK Stop
Phase
Sub 1BH
Sub 1CH
0
0
1
×
×
×
×
×
×
×
×
×
×
×
×
×
(1) Input such a video signal of the 50 system as shown in the figure to pin 51.
(2) Set bus data as indicated on the left.
(3) Measure the VBLK start phase (X) and VBLK stop phase (Y) of pin 12.
DV18 60 System VBLK
Start Phase
DV19 60 System VBLK Stop
Phase
Sub 1BH
Sub 1CH
0
0
1
×
×
×
×
×
×
×
×
×
×
×
×
×
(1) Input such a video signal of the 60 system as shown in the figure to pin 51.
(2) Set bus data as indicated on the left.
(3) Measure the VBLK start phase (X) and VBLK stop phase (Y) of pin 12.
DV20 V. Lead-In Range 1
Sub 16H
×
×
×
0
0
0
0
0
(1) Set bus data as indicated on the left.
(2) Input 262.5 H video signal to pin 51.
(3) Set a certain number of field lines in which signals of pin 51 and pin 54 completely synchronize with each
other as shown in the figure below.
(4) Decrease the field lines in number and measure number of lines in which pin 51 and pin 54 signals do not
synchronize with each other.
(5) Again set a certain number of field lines in which pin 51 and pin 52 signals synchronize with each other.
(6) Increase the field lines in number and measure number of lines in which pin 51 and pin 52 signals do not
synchronize with each other.


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