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参数资料
| 型号： | TB1227CNG |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP56 |
| 封装： | 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-56 |
| 文件页数： | 71/94页 |
| 文件大小： | 1291K |
| 代理商： | TB1227CNG |
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TB1227CNG
2004-05-24
73
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
—
09H 0AH 0CH 0DH 0EH
—
MEASURING METHOD
T20
Cutoff Control
Characteristic
B
A
—
80H 80H
FFH
00H
FFH
00H
FFH
00H
—
T21
Cutoff Center Level
↑
——
—
↑
80H 80H 80H
—
T22
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
T23
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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| TB1231CN | SPECIALTY CONSUMER CIRCUIT, PDIP56 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TB1229DN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL/NTSC SYSTEM COLOR TV |
| TB1230AN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL/NTSC SYSTEM COLOR TV |
| TB1231AN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:PAL/NTSC 1CHIP (IF + VCD PROCESSOR) IC |
| TB1231CN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:PAL/NTSC 1CHIP (IF+VCD PROCESSOR) IC |
| TB1238BN | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:PAL/NTSC 1CHIP (IF + VCD PROCESSOR) IC |
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