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TB1227CNG Datasheet(PDF) 71 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) 71 Page - Toshiba Semiconductor

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TB1227CNG
2004-05-24
71
TEST CONDITION (Unless otherwise specified : H, RGB VCC = 9V ; VDD, Fsc VDD, Y / C VCC = 5V ; Ta = 25±3°C ; BUS = preset value)
SW MODE
SUB-ADDRESS & BUS DATA
NOTE
ITEM
S21 S22 S31 S33 S34 S51 S42
00H 02H 1BH
MEASURING METHOD
T14
Chroma Input Range
B
B
A
A
A
A
A
FFH 88H BFH
(1) Input rainbow color bar signal (3.58MHz for NTSC or 4.43MHz for
PAL) to pin 42 (C IN) and 0.3V synchronizing signal to pin 51 (Sync
IN).
(2) Connect pin 36 (B-Y OUT) and pin 33 (B-Y IN), pin 35 (R-Y OUT)
and pin 34 (R-Y IN) in AC coupling respectively.
(3) Connect pin 21 (Digital Ys) and pin 22 (Analog Ys) to ground.
(4) Set bus data so that unicolor is maximum, drive and color are set
at each center value (80) and mute is on.
(5) While increasing amplitude of chroma signal input to pin 42,
measure amplitude just before any of pin 12 (B OUT), pin 13
(G OUT) and pin 14 (R OUT) output signals is distorted (Vcr).


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