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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)： | 69/94頁(yè) |
| 文件大?。?/td> | 1292K |
| 代理商： | TB1227CNG |
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TB1227CNG
2004-05-24
69
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
21
S
22
S
31
S
33
S
34
S
51
S
42
—
—
00H
02H
05H
NOTE
ITEM
1BH
08H
—
MEASURING METHOD
(1) Input 0.3V synchronizing signal to pin 51 (Sync IN).
(2) Input 100kHz, 0.3V
p-p
sine wave signal to both pin 33 (B-Y IN) and
pin 34 (R-Y IN).
(3) Connect pin 21 (Digital Ys) and pin 22 (Analog Ys) to ground.
(4) Set bus data so that drive is at center value and Y mute is on.
(5) While changing bus data on
unicolor from maximum (FF) to
minimum (00), measure maximum
and minimum amplitudes of pin 13
(G OUT) and pin 12 (B OUT) in
video period respectively, and read
the bus data together with.
Also, measure respective
amplitudes as unicolor data is set
at center value (80).
(Vn12mx, Vn12mn, D12n80)
(Vn13mx, Vn13mn, D13n80)
(Vn14mx, Vn14mn, D14n80)
T
7
Unicolor Control
Characteristic
B
B
B
B
B
A
—
—
—
FFH
80H
00H
—
—
BFH
—
—
(6) Find ratio between amplitude with maximum unicolor data and that
with minimum unicolor data in conversion into decibel (
V13un).
T
8
Relative Amplitude
(NTSC)
↑
↑
A
A
A
↑
A
—
—
FFH
—
—
↑
—
—
While inputting rainbow color bar signal (3.58MHz for NTSC) to pin 42
and 0.3V synchronizing signal to pin 51 so that video amplitude of pin
33 is 0.38V
p-p
, find the relative amplitude
(Mnr-b = Vu14mx / Vu12mx, Mng-b = Vu13mx / Vu12mx).
T
9
Relative Phase
(NTSC)
↑
↑
↑
↑
↑
↑
↑
—
—
↑
—
—
↑
—
—
(1) In the test condition of the Note T
8
, adjust bus data on tint so that
output of pin 12 (B OUT) has the peak level in the 6th bar.
(2) Regarding the phase of pin 12 (B OUT) as a reference phase, find
comparative phase differences of pin 14 (R OUT) and pin 13
(G OUT) from the reference phase respectively (
θ
nr-b,
θ
ng-b).
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| TB1229DN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL/NTSC SYSTEM COLOR TV |
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