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參數資料
| 型號： | TB1227BN |
| 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，色度和同步信號處理集成電路的PAL / NTSC制式/ SECAM制式彩電 |
| 文件頁數： | 73/94頁 |
| 文件大?。?/td> | 1292K |
| 代理商： | TB1227BN |
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TB1227CNG
2004-05-24
73
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
—
—
—
09H
0AH 0CH 0DH 0EH
NOTE
ITEM
—
MEASURING METHOD
T
20
Cutoff Control
Characteristic
B
B
B
B
B
A
—
—
—
80H
80H
FFH
00H
FFH
00H
FFH
00H
—
T
21
Cutoff Center Level
↑
↑
↑
↑
↑
↑
—
—
—
↑
↑
80H
80H
80H
—
T
22
Cutoff Variable Range
↑
↑
↑
↑
↑
↑
—
—
—
—
——
—
—
—
—
(1) Short circuit pin 31 (Y IN), pin 33 (B-Y IN) and pin 34 (R-Y IN) in
AC coupling.
(2) Input 0.3V synchronizing signal to pin 51 (Sync IN).
(3) Connect pin 21 (Digital Ys) and pin 22 (Analog Ys) to ground.
(4) Set bus data on brightness at center value.
(5) While changing data on cutoff from maximum to minimum,
measure video voltage of pin 13 (G OUT) to find maximum and
minimum values (max : Vcomx, min : Vcomn).
(6) Set cutoff data at center value and measure video voltage of pin 13
(G OUT) (Vcoct).
(7) On the condition that bus data with which Vcomx is obtained in
measurement of the above step 5 is Dcomx and bus data with
which Vcomn is obtained in the same is Dcomn, calculate number
of steps (
Dcut).
Dcut = Dcomx
Dcomn
T
23
Drive Variable Range
↑
↑
↑
↑
↑
↑
—
—
—
FFH
00H
FFH
00H
80H
80H
80H
—
(1) Short circuit pin 33 (B-Y IN) and pin 34 (R-Y IN) in AC coupling.
(2) Input a stepping signal whose amplitude in video period is 0.3V to
pin 31 (Y IN).
(3) Input 0.3V synchronizing signal to pin 51 (Sync IN).
(4) Connect pin 21 (Digital Ys) and pin 22 (Analog Ys) to ground.
(5) Set bus data so that contrast is maximum and Y sub contrast is
minimum.
(6) While changing drive data from minimum to maximum, measure
video amplitude of pin 13 (G OUT) to find maximum and minimum
values (max : Vdrmx, min : Vdrmn).
(7) Set drive data at center value and measure video amplitude of pin
13 (G OUT) (Vdrct). Calculate amplitude ratio of the measured
value to the maximum and minimum amplitudes measured in the
above step 6 respectively (DR+, DR
).
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TB1227CNG | 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 / SECAM SYSTEM COLOR TV |
| 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 |
| TB1230AN | 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 |
| TB1231AN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:PAL/NTSC 1CHIP (IF + VCD PROCESSOR) IC |
| TB1231CN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:PAL/NTSC 1CHIP (IF+VCD PROCESSOR) IC |
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