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參數(shù)資料
| 型號(hào)： | TB1227CNG |
| 廠商： | Toshiba Corporation |
| 英文描述： | VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TV |
| 中文描述： | 視頻，色度和同步信號(hào)處理集成電路的PAL / NTSC制式/ SECAM制式彩電 |
| 文件頁(yè)數(shù)： | 75/94頁(yè) |
| 文件大?。?/td> | 1292K |
| 代理商： | TB1227CNG |
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TB1227CNG
2004-05-24
75
TEST CONDITION (Unless otherwise specified : H, RGB V
CC
= 9V ; V
DD
, Fsc V
DD
, Y / C V
CC
= 5V ; Ta = 25±3°C ; BUS = preset value)
SW MODE
SUB-ADDRESS & BUS DATA
S
22
S
31
S
33
S
34
S
51
—
—
—
01H
05H
08H 0CH 0DH 0EH
NOTE
ITEM
S
21
MEASURING METHOD
T
26
Blanking Pulse Output
Level
B
B
B
B
B
A
—
—
—
80H
10H
04H
80H
80H 80H
(1) Input synchronizing signal of 0.3V in amplitude to pin 51 (Sync IN)
(2) Connect pin 21 (Digital Ys) and pin 22 (Analog Ys) to ground.
(3) Set bus data so that blanking is on.
(4) Measure voltage of pin 13 (G OUT) in V. blanking period (Vv).
(5) Measure voltage of pin 13 (G OUT) in H. blanking period (Vh).
T
27
Blanking Pulse Delay
Time
↑
↑
↑
↑
↑
↑
—
—
—
↑
↑
↑
↑
↑
↑
In the setting condition of the Note T
26
, find “t
don
” and “t
doff
” (see figure
below) between the signal impressed to pin 6 (BFP IN) and output
signal of pin 13 (G OUT).
T
28
RGB Min. Output
Level
↑
↑
↑
↑
↑
↑
—
—
—
00H
↑
↑
00H
00H 00H
(1) Short circuit pin 31 (Y IN), pin 33 (B-Y IN) and pin 34 (R-Y IN) in
AC coupling.
(2) Input synchronizing signal of 0.3V in amplitude to pin 51 (Sync IN).
(3) Connect pin 21 (Digital Ys) and pin 22 (Analog Ys) to ground.
(4) Set bus data so that brightness and RGB cutoff are minimum.
(5) Measure video voltage of pin 13 (G OUT) (Vmn).
(1) Short circuit pin 33 (B-Y IN) and pin 34 (R-Y IN) in AC coupling.
(2) Input stepping signal to pin 31 (Y IN) and synchronizing signal of
0.3V in amplitude to pin 51 (Sync IN).
T
29
RGB Max. Output
Level
↑
↑
↑
↑
↑
↑
—
—
—
80H
1fH
44H
80H
80H 80H
(3) Connect pin 21 (Digital Ys) and pin
22 (Analog Ys) to ground.
(4) Set bus data so that contrast and Y
sub contrast are maximum.
(5) While increasing amplitude of the
stepping signal, measure maximum
output level just before video signal
of pin 13 (G OUT) is distorted (Vmn).
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